1.0.71 release

Korean Help

.github/FUNDING.yml

@@ -6,7 +6,7 @@ open_collective: # Replace with a single Open Collective username
 ko_fi: # Replace with a single Ko-fi username
 tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
 community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
-liberapay: # Replace with a single Liberapay username
+liberapay: Ventoy
 issuehunt: # Replace with a single IssueHunt username
 otechie: # Replace with a single Otechie username
 custom: ['https://www.paypal.me/ventoy', 'https://www.ventoy.net/en/donation.html'] # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

.github/ISSUE_TEMPLATE/issue_template.yml

@@ -21,7 +21,7 @@ body:
     attributes:
       label: Ventoy Version
       description: What version of ventoy are you running?
-      placeholder: 1.0.61
+      placeholder: 1.0.71
     validations:
       required: true
   - type: dropdown

.github/workflows/ci.yml

@@ -27,6 +27,10 @@ jobs:
       with:
         name: ventoy-livecd
         path: INSTALL/ventoy-*livecd*
+    - uses: actions/upload-artifact@v2
+      with:
+        name: SHA256SUM
+        path: INSTALL/sha256.txt
     - uses: actions/upload-artifact@v2
       with:
         name: xxx-build-log

BUSYBOX/chmod/build.sh

@@ -1,9 +1,11 @@
 #!/bin/sh
 
-DSTDIR=../../IMG/cpio/ventoy/busybox
+DSTDIR1=../../IMG/cpio_x86/ventoy/busybox
+DSTDIR2=../../IMG/cpio_arm64/ventoy/busybox
+DSTDIR3=../../IMG/cpio_mips64/ventoy/busybox
 
 rm -f vtchmod32 vtchmod64 vtchmod64_musl vtchmodaa64
-rm -f $DSTDIR/vtchmod32 $DSTDIR/vtchmod64 $DSTDIR/vtchmodaa64 $DSTDIR/vtchmodm64e
+rm -f $DSTDIR1/vtchmod32 $DSTDIR1/vtchmod64 $DSTDIR2/vtchmodaa64 $DSTDIR3/vtchmodm64e
 
 /opt/diet32/bin/diet  gcc  -Os -m32  vtchmod.c -o  vtchmod32
 /opt/diet64/bin/diet  gcc  -Os       vtchmod.c -o  vtchmod64
@@ -23,9 +25,9 @@ chmod 777 vtchmodaa64
 chmod 777 vtchmod64_musl
 chmod 777 vtchmodm64e
 
-cp -a vtchmod32 $DSTDIR/
-cp -a vtchmod64 $DSTDIR/
-cp -a vtchmodaa64 $DSTDIR/
-cp -a vtchmod64_musl $DSTDIR/
-cp -a vtchmodm64e $DSTDIR/
+cp -a vtchmod32 $DSTDIR1/
+cp -a vtchmod64 $DSTDIR1/
+cp -a vtchmod64_musl $DSTDIR1/
+cp -a vtchmodaa64 $DSTDIR2/
+cp -a vtchmodm64e $DSTDIR3/
 

BUSYBOX/chmod/vtchmod.c

@@ -1,5 +1,8 @@
+#include <stdio.h>
+#include <string.h>
 #include <sys/types.h>  
 #include <sys/stat.h>
+#include <sys/utsname.h>
 
 int main(int argc, char **argv)
 {
@@ -7,7 +10,25 @@ int main(int argc, char **argv)
     {
         return 1;
     }
-    
+
+    if (argv[1][0] == '-' && argv[1][1] == '6')
+    {
+        struct utsname buf;
+        if (0 == uname(&buf))
+        {
+            if (strstr(buf.machine, "amd64"))
+            {
+                return 0;
+            }
+            
+            if (strstr(buf.machine, "x86_64"))
+            {
+                return 0;
+            }
+        }
+        return 1;
+    }
+
     return chmod(argv[1], 0777);
 }
 

DMPATCH/Makefile

@@ -0,0 +1,7 @@
+
+obj-m += dm_patch.o
+
+EXTRA_CFLAGS := -Wall
+
+dm_patch-objs := dmpatch.o
+

DMPATCH/dmpatch.c

@@ -0,0 +1,187 @@
+/******************************************************************************
+ * dmpatch.c  ---- patch for device-mapper
+ *
+ * Copyright (c) 2021, longpanda <admin@ventoy.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 3 of the
+ * License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kallsyms.h>
+#include <linux/mutex.h>
+#include <linux/mempool.h>
+#include <linux/delay.h>
+#include <linux/wait.h>
+#include <linux/slab.h>
+
+#define MAX_PATCH   4
+
+#define magic_sig 0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF
+
+typedef int (*kprobe_reg_pf)(void *);
+typedef void (*kprobe_unreg_pf)(void *);
+typedef int (*printk_pf)(const char *fmt, ...);
+typedef int (*set_memory_attr_pf)(unsigned long addr, int numpages);
+
+#pragma pack(1)
+typedef struct ko_param
+{
+    unsigned char magic[16];
+    unsigned long struct_size;
+    unsigned long pgsize;
+    unsigned long printk_addr;
+    unsigned long ro_addr;
+    unsigned long rw_addr;
+    unsigned long reg_kprobe_addr;
+    unsigned long unreg_kprobe_addr;
+    unsigned long sym_get_addr;
+    unsigned long sym_get_size;
+    unsigned long sym_put_addr;
+    unsigned long sym_put_size;
+    unsigned long padding[3];
+}ko_param;
+
+#pragma pack()
+
+static printk_pf kprintf = NULL;
+static set_memory_attr_pf set_mem_ro = NULL;
+static set_memory_attr_pf set_mem_rw = NULL;
+static kprobe_reg_pf reg_kprobe = NULL;
+static kprobe_unreg_pf unreg_kprobe = NULL;
+
+static volatile ko_param g_ko_param = 
+{
+    { magic_sig },
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+#if defined(CONFIG_X86_64)
+#define PATCH_OP_POS    3
+#define CODE_MATCH(code, i) \
+    (code[i] == 0x40 && code[i + 1] == 0x80 && code[i + 2] == 0xce && code[i + 3] == 0x80)
+#elif defined(CONFIG_X86_32)
+#define PATCH_OP_POS    2
+#define CODE_MATCH(code, i) \
+    (code[i] == 0x80 && code[i + 1] == 0xca && code[i + 2] == 0x80 && code[i + 3] == 0xe8)
+#else
+#error "unsupported arch"
+#endif
+
+#define vdebug(fmt, args...) if(kprintf) kprintf(KERN_ERR fmt, ##args)
+
+static int notrace dmpatch_replace_code(unsigned long addr, unsigned long size, int expect, const char *desc)
+{
+    int i = 0;
+    int cnt = 0;
+    unsigned long align;
+    unsigned char *patch[MAX_PATCH];
+    unsigned char *opCode = (unsigned char *)addr;
+
+    vdebug("patch for %s 0x%lx %d\n", desc, addr, (int)size);
+
+    for (i = 0; i < (int)size - 4; i++)
+    {
+        if (CODE_MATCH(opCode, i) && cnt < MAX_PATCH)
+        {
+            patch[cnt] = opCode + i + PATCH_OP_POS;
+            cnt++;
+        }
+    }
+
+    if (cnt != expect || cnt >= MAX_PATCH)
+    {
+        vdebug("patch error: cnt=%d expect=%d\n", cnt, expect);
+        return 1;
+    }
+
+
+    for (i = 0; i < cnt; i++)
+    {
+        opCode = patch[i];
+        align = (unsigned long)opCode / g_ko_param.pgsize * g_ko_param.pgsize;
+
+        set_mem_rw(align, 1);
+        *opCode = 0;
+        set_mem_ro(align, 1);
+    }
+
+    return 0;
+}
+
+static int notrace dmpatch_init(void)
+{
+    int r = 0;
+    int rc = 0;
+
+    kprintf = (printk_pf)(g_ko_param.printk_addr); 
+
+    vdebug("dmpatch_init start pagesize=%lu ...\n", g_ko_param.pgsize);
+    
+    if (g_ko_param.struct_size != sizeof(ko_param))
+    {
+        vdebug("Invalid struct size %d %d\n", (int)g_ko_param.struct_size, (int)sizeof(ko_param));
+        return -EINVAL;
+    }
+    
+    if (g_ko_param.sym_get_addr == 0 || g_ko_param.sym_put_addr == 0 || 
+        g_ko_param.ro_addr == 0 || g_ko_param.rw_addr == 0)
+    {
+        return -EINVAL;
+    }
+
+    set_mem_ro = (set_memory_attr_pf)(g_ko_param.ro_addr);
+    set_mem_rw = (set_memory_attr_pf)(g_ko_param.rw_addr);
+    reg_kprobe = (kprobe_reg_pf)g_ko_param.reg_kprobe_addr;
+    unreg_kprobe = (kprobe_unreg_pf)g_ko_param.unreg_kprobe_addr;
+
+    r = dmpatch_replace_code(g_ko_param.sym_get_addr, g_ko_param.sym_get_size, 2, "dm_get_table_device");
+    if (r)
+    {
+        rc = -EINVAL;
+        goto out;
+    }
+    vdebug("patch dm_get_table_device success\n");
+
+    r = dmpatch_replace_code(g_ko_param.sym_put_addr, g_ko_param.sym_put_size, 1, "dm_put_table_device");
+    if (r)
+    {
+        rc = -EINVAL;
+        goto out;
+    }
+    vdebug("patch dm_put_table_device success\n");
+
+    vdebug("#####################################\n");
+    vdebug("######## dm patch success ###########\n");
+    vdebug("#####################################\n");
+
+out:
+
+	return rc;
+}
+
+static void notrace dmpatch_exit(void)
+{
+
+}
+
+module_init(dmpatch_init);
+module_exit(dmpatch_exit);
+
+
+MODULE_DESCRIPTION("dmpatch driver");
+MODULE_AUTHOR("longpanda <admin@ventoy.net>");
+MODULE_LICENSE("GPL");
+

DMPATCH/readme.txt

@@ -0,0 +1,36 @@
+1. install ubuntu 21.10
+2. apt-get install build-essential flex libncurses-dev linux-headers-generic linux-source libssl-dev ...... and so on
+3. cp /lib/modules/5.13.0-23-generic/build/Module.symvers ./
+4. /boot/config-5.13.0-23-generic as .config   make oldconfig
+5. make menuconfig 
+    1. close CONFIG_STACKPROTECTOR
+    2. close CONFIG_RETPOLINE
+
+6. modify ./scripts/mod/modpost.c
+    1. skip add_srcversion (just return)
+    2. force add_retpoline (#ifdef --> #ifndef)
+    3. force add_intree_flag
+
+7. make modules_prepare LOCALVERSION=-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+
+8. Append padding at the end of struct module <include/linux/module.h>
+struct module {
+    enum module_state state;
+
+	/* Member of list of modules */
+	struct list_head list;
+
+	/* Unique handle for this module */
+	char name[MODULE_NAME_LEN];
+    
+    ....
+    
+    char padding[1024];
+};
+
+This is because struct module size is different in different kernel versions or with different CONFIG item.
+
+
+9. make modules M=/home/dmpatch
+10. strip --strip-debug /home/dmpatch/dm_patch.ko
+

DOC/BuildVentoyFromSource.txt

@@ -108,10 +108,10 @@
     cd /home/Ventoy-master/VtoyTool
     sh build.sh
 
-4.8 == Build vtoyfat ==    
-    cd /home/Ventoy-master/vtoyfat/fat_io_lib
+4.8 == Build vtoycli ==    
+    cd /home/Ventoy-master/vtoycli/fat_io_lib
     sh buildlib.sh
-    cd /home/Ventoy-master/vtoyfat
+    cd /home/Ventoy-master/vtoycli
     sh build.sh
 
 4.9 == Build exfat-util ==

EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/VDiskChain/VDiskChain.c

@@ -249,6 +249,12 @@ EFI_STATUS EFIAPI vdisk_exit_boot_service_wrapper
     IN  UINTN                        MapKey
 )
 {
+    if (g_org_get_variable)
+    {
+        gRT->GetVariable = g_org_get_variable;
+        g_org_get_variable = NULL;
+    }
+
     return g_org_exit_boot_service(ImageHandle, MapKey);
 }
 

EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/Ventoy.c

@@ -71,6 +71,9 @@ STATIC BOOLEAN g_hook_keyboard = FALSE;
 
 CHAR16 gFirstTryBootFile[256] = {0};
 
+STATIC EFI_GET_VARIABLE g_org_get_variable = NULL;
+STATIC EFI_EXIT_BOOT_SERVICES g_org_exit_boot_service = NULL;
+
 /* Boot filename */
 UINTN gBootFileStartIndex = 1;
 CONST CHAR16 *gEfiBootFileName[] = 
@@ -226,12 +229,14 @@ static void EFIAPI ventoy_dump_chain(ventoy_chain_head *chain)
     debug("os_param->vtoy_img_size=<%llu>",    chain->os_param.vtoy_img_size);
     debug("os_param->vtoy_img_location_addr=<0x%llx>", chain->os_param.vtoy_img_location_addr);
     debug("os_param->vtoy_img_location_len=<%u>",    chain->os_param.vtoy_img_location_len);
-    debug("os_param->vtoy_reserved=<%u %u %u %u %u>",    
+    debug("os_param->vtoy_reserved=<%u %u %u %u %u %u %u>",    
           g_os_param_reserved[0], 
           g_os_param_reserved[1], 
           g_os_param_reserved[2], 
           g_os_param_reserved[3],
-          g_os_param_reserved[4]
+          g_os_param_reserved[4],
+          g_os_param_reserved[5],
+          g_os_param_reserved[6]
           );
 
     ventoy_debug_pause();
@@ -575,7 +580,7 @@ STATIC EFI_STATUS EFIAPI ventoy_find_iso_disk(IN EFI_HANDLE ImageHandle)
         if (CompareMem(g_chain->os_param.vtoy_disk_guid, pBuffer + 0x180, 16) == 0)
         {
             pMBR = (MBR_HEAD *)pBuffer;
-            if (pMBR->PartTbl[0].FsFlag != 0xEE)
+            if (g_os_param_reserved[6] == 0 && pMBR->PartTbl[0].FsFlag != 0xEE)
             {
                 if (pMBR->PartTbl[0].StartSectorId != 2048 ||
                     pMBR->PartTbl[1].SectorCount != 65536 ||
@@ -739,6 +744,77 @@ STATIC EFI_STATUS ventoy_proc_img_replace_name(ventoy_grub_param_file_replace *r
     return EFI_SUCCESS;
 }
 
+EFI_STATUS EFIAPI ventoy_get_variable_wrapper
+(
+    IN     CHAR16                      *VariableName,
+    IN     EFI_GUID                    *VendorGuid,
+    OUT    UINT32                      *Attributes,    OPTIONAL
+    IN OUT UINTN                       *DataSize,
+    OUT    VOID                        *Data           OPTIONAL
+)
+{
+    EFI_STATUS Status = EFI_SUCCESS;
+    
+    Status = g_org_get_variable(VariableName, VendorGuid, Attributes, DataSize, Data);
+    if (StrCmp(VariableName, L"SecureBoot") == 0)
+    {
+        if ((*DataSize == 1) && Data)
+        {
+            *(UINT8 *)Data = 0;
+        }
+    }
+
+    return Status;
+}
+
+EFI_STATUS EFIAPI ventoy_exit_boot_service_wrapper
+(
+    IN  EFI_HANDLE                   ImageHandle,
+    IN  UINTN                        MapKey
+)
+{
+    if (g_org_get_variable)
+    {
+        gRT->GetVariable = g_org_get_variable;
+        g_org_get_variable = NULL;
+    }
+    
+    return g_org_exit_boot_service(ImageHandle, MapKey);
+}
+
+STATIC EFI_STATUS EFIAPI ventoy_disable_secure_boot(IN EFI_HANDLE ImageHandle)
+{
+    UINT8 Value = 0;
+    UINTN DataSize = 1;
+    EFI_STATUS Status = EFI_SUCCESS;
+
+    Status = gRT->GetVariable(L"SecureBoot", &gEfiGlobalVariableGuid, NULL, &DataSize, &Value);
+    if (!EFI_ERROR(Status))
+    {
+        if (DataSize == 1 && Value == 0)
+        {
+            debug("Current secure boot is off, no need to disable");
+            return EFI_SUCCESS;
+        }
+    }
+
+    debug("ventoy_disable_secure_boot");
+
+    /* step1: wrapper security protocol. */
+    /* Do we still need it since we have been loaded ? */
+    
+    
+    /* step2: fake SecureBoot variable */
+    g_org_exit_boot_service = gBS->ExitBootServices;
+    gBS->ExitBootServices = ventoy_exit_boot_service_wrapper;
+    
+    g_org_get_variable = gRT->GetVariable;
+    gRT->GetVariable = ventoy_get_variable_wrapper;
+
+    return EFI_SUCCESS;
+}
+
+
 STATIC EFI_STATUS EFIAPI ventoy_parse_cmdline(IN EFI_HANDLE ImageHandle)
 {   
     UINT32 i = 0;
@@ -882,6 +958,7 @@ STATIC EFI_STATUS EFIAPI ventoy_parse_cmdline(IN EFI_HANDLE ImageHandle)
         debug("memdisk mode iso_buf_size:%u", g_iso_buf_size);
 
         g_chain = chain;
+        g_os_param_reserved = (UINT8 *)(g_chain->os_param.vtoy_reserved);
         gMemdiskMode = TRUE;
     }
     else
@@ -909,6 +986,11 @@ STATIC EFI_STATUS EFIAPI ventoy_parse_cmdline(IN EFI_HANDLE ImageHandle)
         {
             g_hook_keyboard = TRUE;
         }
+        
+        if (g_os_param_reserved[5] == 1 && g_os_param_reserved[2] == ventoy_chain_linux)
+        {
+            ventoy_disable_secure_boot(ImageHandle);
+        }
 
         debug("internal param: secover:%u keyboard:%u", g_fixup_iso9660_secover_enable, g_hook_keyboard);
 

EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/Ventoy.inf

@@ -42,6 +42,7 @@
   DebugLib
 
 [Guids]
+  gEfiGlobalVariableGuid
   gShellVariableGuid
   gEfiVirtualCdGuid
   gEfiFileInfoGuid

GRUB2/MOD_SRC/grub-2.04/grub-core/Makefile.core.def

@@ -1610,6 +1610,7 @@ module = {
   common = ventoy/ventoy_vhd.c;
   common = ventoy/ventoy_plugin.c;
   common = ventoy/ventoy_json.c;
+  common = ventoy/ventoy_browser.c;
   common = ventoy/lzx.c;
   common = ventoy/xpress.c;
   common = ventoy/huffman.c;

GRUB2/MOD_SRC/grub-2.04/grub-core/kern/file.c

@@ -106,19 +106,134 @@ int ventoy_check_file_exist(const char * fmt, ...)
     }
 }
 
+typedef struct grub_vlnk
+{
+    int srclen;
+    char src[512];
+    char dst[512];
+    struct grub_vlnk *next;
+}grub_vlnk;
+
+static grub_vlnk g_vtoy_vlnk;
+static grub_vlnk *g_vlnk_list;
+
+int grub_file_is_vlnk_suffix(const char *name, int len)
+{
+    grub_uint32_t suffix;
+
+    if (len > 9)
+    {
+        suffix = *(grub_uint32_t *)(name + len - 4);
+        if (grub_strncmp(name + len - 9, ".vlnk.", 6) == 0)
+        {
+            /* .iso .wim .img .vhd .efi .dat */
+            if (suffix == 0x6F73692E || suffix == 0x6D69772E || 
+                suffix == 0x676D692E || suffix == 0x6468762E ||
+                suffix == 0x6966652E || suffix == 0x7461642E)
+            {
+                return 1;
+            }
+        }
+        else if (len > 10 && grub_strncmp(name + len - 10, ".vlnk.", 6) == 0)
+        {
+            /* vhdx vtoy */
+            if (suffix == 0x78646876 || suffix == 0x796F7476)
+            {
+                return 1;
+            }
+        }
+    }
+
+    return 0;
+}
+
+int grub_file_vtoy_vlnk(const char *src, const char *dst)
+{
+    if (src)
+    {
+        g_vtoy_vlnk.srclen = (int)grub_strlen(src);
+        grub_strncpy(g_vtoy_vlnk.src, src, sizeof(g_vtoy_vlnk.src) - 1);
+        grub_strncpy(g_vtoy_vlnk.dst, dst, sizeof(g_vtoy_vlnk.dst) - 1);        
+    }
+    else
+    {
+        g_vtoy_vlnk.srclen = 0;
+        g_vtoy_vlnk.src[0] = 0;
+        g_vtoy_vlnk.dst[0] = 0;
+    }
+    return 0;
+}
+
+int grub_file_add_vlnk(const char *src, const char *dst)
+{
+    grub_vlnk *node = NULL;
+    
+    if (src && dst)
+    {
+        node = grub_zalloc(sizeof(grub_vlnk));    
+        if (node)
+        {
+            node->srclen = (int)grub_strlen(src);
+            grub_strncpy(node->src, src, sizeof(node->src) - 1);
+            grub_strncpy(node->dst, dst, sizeof(node->dst) - 1);
+
+            node->next = g_vlnk_list;
+            g_vlnk_list = node;
+            return 0;            
+        }
+    }
+
+    return 1;
+}
+
+const char *grub_file_get_vlnk(const char *name, int *vlnk)
+{
+    int len;
+    grub_vlnk *node = g_vlnk_list;
+
+    len = grub_strlen(name);
+
+    if (!grub_file_is_vlnk_suffix(name, len))
+    {
+        return name;
+    }
+
+    if (len == g_vtoy_vlnk.srclen && grub_strcmp(name, g_vtoy_vlnk.src) == 0)
+    {
+        *vlnk = 1;
+        return g_vtoy_vlnk.dst; 
+    }
+    
+    while (node)
+    {
+        if (node->srclen == len && grub_strcmp(name, node->src) == 0)
+        {
+            *vlnk = 1;
+            return node->dst;
+        }
+        node = node->next;
+    }
+
+    return name;
+}
+
 grub_file_t
 grub_file_open (const char *name, enum grub_file_type type)
 {
+  int vlnk = 0;
   grub_device_t device = 0;
   grub_file_t file = 0, last_file = 0;
   char *device_name;
   const char *file_name;
   grub_file_filter_id_t filter;
 
-  /* <DESC> : mem:xxx:size:xxx format in chainloader */
-  if (grub_strncmp(name, GRUB_MEMFILE_MEM, grub_strlen(GRUB_MEMFILE_MEM)) == 0) {
+  /* <DESC> : mem:xxx:size:xxx format in chainloader grub_strlen(GRUB_MEMFILE_MEM) */
+  if (grub_strncmp(name, GRUB_MEMFILE_MEM, 4) == 0) {
       return grub_memfile_open(name);
-  }  
+  }
+
+  if ((g_vlnk_list || g_vtoy_vlnk.srclen) && (type & GRUB_FILE_TYPE_NO_VLNK) == 0)
+    name = grub_file_get_vlnk(name, &vlnk);
 
   device_name = grub_file_get_device_name (name);
   if (grub_errno)
@@ -141,6 +256,7 @@ grub_file_open (const char *name, enum grub_file_type type)
     goto fail;
 
   file->device = device;
+  file->vlnk = vlnk;
 
   /* In case of relative pathnames and non-Unix systems (like Windows)
    * name of host files may not start with `/'. Blocklists for host files

GRUB2/MOD_SRC/grub-2.04/grub-core/kern/fs.c

@@ -42,6 +42,44 @@ probe_dummy_iter (const char *filename __attribute__ ((unused)),
   return 1;
 }
 
+grub_fs_t grub_fs_list_probe(grub_device_t device, const char **list)
+{
+    int i;
+    grub_fs_t p;
+
+    if (!device->disk)
+        return 0;
+
+    for (p = grub_fs_list; p; p = p->next) 
+    {
+        for (i = 0; list[i]; i++) 
+        {
+            if (grub_strcmp(p->name, list[i]) == 0)
+                break;
+        }
+
+        if (list[i] == NULL)
+            continue;
+        
+        grub_dprintf("fs", "Detecting %s...\n", p->name);
+
+	    (p->fs_dir) (device, "/", probe_dummy_iter, NULL);
+	    if (grub_errno == GRUB_ERR_NONE)
+	        return p;
+
+        grub_error_push ();
+        grub_dprintf ("fs", "%s detection failed.\n", p->name);
+        grub_error_pop ();
+
+        if (grub_errno != GRUB_ERR_BAD_FS && grub_errno != GRUB_ERR_OUT_OF_RANGE) {
+            return 0;
+        }
+	    grub_errno = GRUB_ERR_NONE;
+	}
+
+    return 0;
+}
+
 grub_fs_t
 grub_fs_probe (grub_device_t device)
 {

GRUB2/MOD_SRC/grub-2.04/grub-core/normal/menu.c

@@ -402,6 +402,7 @@ int g_menu_update_mode = 0;
 int g_ventoy_tip_label_enable = 0;
 const char * g_ventoy_tip_msg1 = NULL;
 const char * g_ventoy_tip_msg2 = NULL;
+char g_ventoy_theme_path[256] = {0};
 static const char *g_ventoy_cur_img_path = NULL;
 static void menu_set_chosen_tip(grub_menu_t menu, int entry)
 {
@@ -410,9 +411,15 @@ static void menu_set_chosen_tip(grub_menu_t menu, int entry)
     menu_tip *tip;
     grub_menu_entry_t e = grub_menu_get_entry (menu, entry);
 
+    if (g_ventoy_theme_path[0])
+    {
+        grub_env_set("theme", g_ventoy_theme_path);        
+    }
+
     g_ventoy_tip_msg1 = g_ventoy_tip_msg2 = NULL;
     if (e && e->id && grub_strncmp(e->id, "VID_", 4) == 0) 
     {
+        g_ventoy_theme_path[0] = 0;
         img = (img_info *)(void *)grub_strtoul(e->id + 4, NULL, 16);
         if (img)
         {
@@ -423,6 +430,7 @@ static void menu_set_chosen_tip(grub_menu_t menu, int entry)
     }
     else if (e && e->id && grub_strncmp(e->id, "DIR_", 4) == 0)
     {
+        g_ventoy_theme_path[0] = 0;
         for (i = 0; i < e->argc; i++)
         {
             if (e->args[i] && grub_strncmp(e->args[i], "_VTIP_", 6) == 0)
@@ -663,9 +671,7 @@ run_menu (grub_menu_t menu, int nested, int *auto_boot)
 
   if (g_ventoy_suppress_esc)
       default_entry = g_ventoy_suppress_esc_default;
-  else if (g_ventoy_last_entry >= 0 && g_ventoy_last_entry < menu->size) {
-      default_entry = g_ventoy_last_entry;
-  } 
+
   /* If DEFAULT_ENTRY is not within the menu entries, fall back to
      the first entry.  */
   else if (default_entry < 0 || default_entry >= menu->size)

GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_browser.c

@@ -0,0 +1,607 @@
+/******************************************************************************
+ * ventoy_browser.c 
+ *
+ * Copyright (c) 2022, longpanda <admin@ventoy.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 3 of the
+ * License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/disk.h>
+#include <grub/device.h>
+#include <grub/term.h>
+#include <grub/partition.h>
+#include <grub/file.h>
+#include <grub/normal.h>
+#include <grub/extcmd.h>
+#include <grub/datetime.h>
+#include <grub/i18n.h>
+#include <grub/net.h>
+#include <grub/time.h>
+#include <grub/ventoy.h>
+#include "ventoy_def.h"
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+#define BROWSER_MENU_BUF    65536
+
+static const char *g_vtoy_dev = NULL;
+static grub_fs_t g_menu_fs = NULL;
+static char *g_menu_device = NULL;
+static grub_device_t g_menu_dev = NULL;
+static char g_menu_path_buf[1024];
+static int g_menu_path_len = 0;
+static browser_node *g_browser_list = NULL;
+
+static int ventoy_browser_strcmp(char *str1, char *str2)
+{
+    char *s1, *s2;
+    int c1 = 0;
+    int c2 = 0;
+
+    for (s1 = str1, s2 = str2; *s1 && *s2; s1++, s2++)
+    {
+        c1 = *s1;
+        c2 = *s2;
+
+        if (0 == g_sort_case_sensitive)
+        {
+            if (grub_islower(c1))
+            {
+                c1 = c1 - 'a' + 'A';
+            }
+            
+            if (grub_islower(c2))
+            {
+                c2 = c2 - 'a' + 'A';
+            }
+        }
+
+        if (c1 != c2)
+        {
+            break;
+        }
+    }
+
+    return (c1 - c2);
+}
+
+static int ventoy_browser_mbuf_alloc(browser_mbuf *mbuf)
+{
+    grub_memset(mbuf, 0, sizeof(browser_mbuf));
+    mbuf->buf = grub_malloc(BROWSER_MENU_BUF);
+    if (!mbuf->buf)
+    {
+        return 0;
+    }
+
+    mbuf->pos = 0;
+    mbuf->max = BROWSER_MENU_BUF;
+    return 1;
+}
+
+static inline void ventoy_browser_mbuf_free(browser_mbuf *mbuf)
+{
+    if (mbuf)
+        grub_check_free(mbuf->buf)
+}
+
+static inline int ventoy_browser_mbuf_extend(browser_mbuf *mbuf)
+{
+    if (mbuf->max - mbuf->pos <= VTOY_SIZE_1KB)
+    {
+        mbuf->max += BROWSER_MENU_BUF;
+        mbuf->buf = grub_realloc(mbuf->buf, mbuf->max);
+    }
+
+    return 0;
+}
+
+static browser_node * ventoy_browser_find_top_node(int dir)
+{
+    browser_node *node = NULL;
+    browser_node *sel = NULL;
+
+    for (node = g_browser_list; node; node = node->next)
+    {
+        if (node->dir == dir)
+        {
+            if (sel)
+            {
+                if (ventoy_browser_strcmp(sel->filename, node->filename) > 0)
+                {
+                    sel = node;
+                }
+            }
+            else
+            {
+                sel = node;
+            }
+        }
+    }
+    
+    return sel;
+}
+
+static int ventoy_browser_iterate_partition(struct grub_disk *disk, const grub_partition_t partition, void *data)
+{
+    char partname[64];
+    char title[256];
+    grub_device_t dev;
+    grub_fs_t fs;
+    char *Label = NULL;
+    browser_mbuf *mbuf = (browser_mbuf *)data;
+
+    (void)data;
+
+    if (partition->number == 1 && g_vtoy_dev && grub_strcmp(disk->name, g_vtoy_dev) == 0)
+    {
+        return 0;
+    }
+
+    grub_snprintf(partname, sizeof(partname) - 1, "%s,%d", disk->name, partition->number + 1);
+
+    dev = grub_device_open(partname);
+    if (!dev)
+    {
+        return 0;
+    }
+
+    fs = grub_fs_probe(dev);
+    if (!fs)
+    {
+        grub_device_close(dev);
+        return 0;
+    }
+
+    fs->fs_label(dev, &Label);
+
+    if (g_tree_view_menu_style == 0)
+    {
+        grub_snprintf(title, sizeof(title), "%-10s (%s,%s%d) [%s] %s %s", 
+            "DISK", disk->name, partition->msdostype == 0xee ? "gpt" : "msdos", 
+            partition->number + 1, (Label ? Label : ""), fs->name, 
+            grub_get_human_size(partition->len << disk->log_sector_size, GRUB_HUMAN_SIZE_SHORT));
+    }
+    else
+    {
+        grub_snprintf(title, sizeof(title), "(%s,%s%d) [%s] %s %s", 
+            disk->name, partition->msdostype == 0xee ? "gpt" : "msdos", 
+            partition->number + 1, (Label ? Label : ""), fs->name, 
+            grub_get_human_size(partition->len << disk->log_sector_size, GRUB_HUMAN_SIZE_SHORT));
+    }
+
+    if (ventoy_get_fs_type(fs->name) >= ventoy_fs_max)
+    {
+        browser_ssprintf(mbuf, "menuentry \"%s\" --class=vtoydisk {\n"
+            "   echo \"unsupported file system type!\" \n"
+            "   ventoy_pause\n"
+            "}\n",
+            title);
+    }
+    else
+    {
+        browser_ssprintf(mbuf, "menuentry \"%s\" --class=vtoydisk {\n"
+            "  vt_browser_dir %s,%d 0x%lx /\n"
+            "}\n",
+            title, disk->name, partition->number + 1, (ulong)fs);
+    }
+
+    ventoy_browser_mbuf_extend(mbuf);
+
+    return 0;
+}
+
+static int ventoy_browser_iterate_disk(const char *name, void *data)
+{
+    grub_disk_t disk;
+
+    if (name[0] != 'h')
+    {
+        return 0;
+    }
+
+    disk = grub_disk_open(name);
+    if (disk)
+    {
+        grub_partition_iterate(disk, ventoy_browser_iterate_partition, data);
+        grub_disk_close(disk);
+    }
+
+    return 0;
+}
+
+static int ventoy_browser_valid_dirname(const char *name, int len)
+{
+    if ((len == 1 && name[0] == '.') ||
+        (len == 2 && name[0] == '.' && name[1] == '.'))
+    {
+        return 0;
+    }
+
+    if (!ventoy_img_name_valid(name, len))
+    {
+        return 0;
+    }
+
+    if (name[0] == '$')
+    {
+        if (0 == grub_strncmp(name, "$RECYCLE.BIN", 12) ||
+            0 == grub_strncasecmp(name, "$Extend", 7))
+        {
+            return 0;
+        }
+    }
+
+    if (len == 25 && grub_strncmp(name, "System Volume Information", 25) == 0)
+    {
+        return 0;
+    }
+
+    return 1;
+}
+
+static int ventoy_browser_valid_filename(const char *filename, int len, int *type)
+{
+    if (len < 4)
+    {
+        return 0;
+    }
+
+    if (FILE_FLT(ISO) && 0 == grub_strcasecmp(filename + len - 4, ".iso"))
+    {
+        *type = img_type_iso;
+    }
+    else if (FILE_FLT(WIM) && g_wimboot_enable && (0 == grub_strcasecmp(filename + len - 4, ".wim")))
+    {
+        *type = img_type_wim;
+    }
+    else if (FILE_FLT(VHD) && g_vhdboot_enable && (0 == grub_strcasecmp(filename + len - 4, ".vhd") || 
+            (len >= 5 && 0 == grub_strcasecmp(filename + len - 5, ".vhdx"))))
+    {
+        *type = img_type_vhd;
+    }
+    #ifdef GRUB_MACHINE_EFI
+    else if (FILE_FLT(EFI) && 0 == grub_strcasecmp(filename + len - 4, ".efi"))
+    {
+        *type = img_type_efi;
+    }
+    #endif
+    else if (FILE_FLT(IMG) && 0 == grub_strcasecmp(filename + len - 4, ".img"))
+    {
+        if (len == 18 && grub_strncmp(filename, "ventoy_", 7) == 0)
+        {
+            if (grub_strncmp(filename + 7, "wimboot", 7) == 0 ||
+                grub_strncmp(filename + 7, "vhdboot", 7) == 0)
+            {
+                return 0;
+            }
+        }
+        *type = img_type_img;
+    }
+    else if (FILE_FLT(VTOY) && len >= 5 && 0 == grub_strcasecmp(filename + len - 5, ".vtoy"))
+    {
+        *type = img_type_vtoy;
+    }
+    else
+    {
+        return 0;
+    }
+
+    if (g_filt_dot_underscore_file && filename[0] == '.' && filename[1] == '_')
+    {
+        return 0;
+    }
+
+    return 1;
+}
+
+static int ventoy_browser_iterate_dir(const char *filename, const struct grub_dirhook_info *info, void *data)
+{
+    int type;
+    int len;
+    browser_node *node;
+
+    (void)data;
+
+    len = grub_strlen(filename);
+    
+    if (info->dir)
+    {
+        if (!ventoy_browser_valid_dirname(filename, len))
+        {
+            return 0;
+        }
+
+        node = grub_zalloc(sizeof(browser_node));
+        if (!node)
+        {
+            return 0;
+        }
+
+        node->dir = 1;
+        grub_strncpy(node->filename, filename, sizeof(node->filename));
+
+        if (g_tree_view_menu_style == 0)
+        {
+            grub_snprintf(node->menuentry, sizeof(node->menuentry),
+                "menuentry \"%-10s [%s]\" --class=vtoydir {\n"
+                "  vt_browser_dir %s 0x%lx \"%s/%s\"\n"
+                "}\n",
+                "DIR", filename, g_menu_device, (ulong)g_menu_fs, g_menu_path_buf, filename);
+        }
+        else
+        {
+            grub_snprintf(node->menuentry, sizeof(node->menuentry),
+                "menuentry \"[%s]\" --class=vtoydir {\n"
+                "  vt_browser_dir %s 0x%lx \"%s/%s\"\n"
+                "}\n",
+                filename, g_menu_device, (ulong)g_menu_fs, g_menu_path_buf, filename);
+        }
+    }
+    else
+    {
+        grub_uint64_t fsize = info->size;
+        
+        if (!ventoy_browser_valid_filename(filename, len, &type))
+        {
+            return 0;
+        }
+
+        node = grub_zalloc(sizeof(browser_node));
+        if (!node)
+        {
+            return 0;
+        }
+
+        if (fsize == 0)
+        {
+            struct grub_file file;
+
+            grub_memset(&file, 0, sizeof(file));
+            file.device = g_menu_dev;
+            grub_snprintf(node->menuentry, sizeof(node->menuentry), "%s/%s", g_menu_path_buf, filename);
+            if (g_menu_fs->fs_open(&file, node->menuentry) == GRUB_ERR_NONE)
+            {
+                fsize = file.size;
+                g_menu_fs->fs_close(&file);
+            }
+        }
+        
+        node->dir = 0;
+        grub_strncpy(node->filename, filename, sizeof(node->filename));
+
+        if (g_tree_view_menu_style == 0)
+        {
+            grub_snprintf(node->menuentry, sizeof(node->menuentry),
+                "menuentry \"%-10s %s\" --class=%s {\n"
+                "  vt_set_fake_vlnk \"(%s)%s/%s\" %s %llu\n"
+                "  %s_common_menuentry\n"
+                "  vt_reset_fake_vlnk\n"
+                "}\n",
+                grub_get_human_size(fsize, GRUB_HUMAN_SIZE_SHORT), filename, g_menu_class[type],
+                g_menu_device, g_menu_path_buf, filename, g_menu_prefix[type], (ulonglong)fsize,
+                g_menu_prefix[type]);
+        }
+        else
+        {
+            grub_snprintf(node->menuentry, sizeof(node->menuentry),
+                "menuentry \"%s\" --class=%s {\n"
+                "  vt_set_fake_vlnk \"(%s)%s/%s\" %s %llu\n"
+                "  %s_common_menuentry\n"
+                "  vt_reset_fake_vlnk\n"
+                "}\n",
+                filename, g_menu_class[type],
+                g_menu_device, g_menu_path_buf, filename, g_menu_prefix[type], (ulonglong)fsize,
+                g_menu_prefix[type]);
+        }
+    }
+
+    node->prev = NULL;
+    node->next = g_browser_list;
+    if (g_browser_list)
+    {
+        g_browser_list->prev = node;
+    }
+    g_browser_list = node;
+
+    return 0;
+}
+
+static grub_err_t ventoy_browser_iso_part(void)
+{
+    char cfgfile[64];
+    char *buffer = NULL;
+    int pos = 0;
+    int buflen = 0;
+    int cfglen = 0;
+
+    cfglen = g_tree_script_pos - g_tree_script_pre;
+    buflen = cfglen + 512;
+    buffer = grub_malloc(buflen);
+    if (!buffer)
+    {
+        return 1;
+    }
+
+    if (g_tree_view_menu_style == 0)
+    {
+        pos = grub_snprintf(buffer, buflen, "menuentry \"%-10s [../]\" --class=\"vtoyret\" VTOY_RET {\n  "
+                            "  echo 'return ...' \n}\n", "<--");        
+    }
+    else
+    {
+        pos = grub_snprintf(buffer, buflen, "menuentry \"[../]\" --class=\"vtoyret\" VTOY_RET {\n  "
+                            "  echo 'return ...' \n}\n");        
+    }
+
+    grub_memcpy(buffer + pos, g_tree_script_buf + g_tree_script_pre, cfglen);
+    pos += cfglen;
+
+    grub_snprintf(cfgfile, sizeof(cfgfile), "configfile mem:0x%lx:size:%d", (ulong)buffer, pos);
+    grub_script_execute_sourcecode(cfgfile);
+
+    grub_free(buffer);
+    VENTOY_CMD_RETURN(GRUB_ERR_NONE);
+}
+
+grub_err_t ventoy_cmd_browser_dir(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    int i;
+    grub_fs_t fs;
+    grub_device_t dev;
+    char cfgfile[64];
+    browser_node *node;
+    browser_mbuf mbuf;
+
+    (void)ctxt;
+    (void)argc;
+
+    if (args[2][0] == '/' && args[2][1] == 0)
+    {
+        grub_snprintf(cfgfile, sizeof(cfgfile), "(%s)", args[0]);
+        if (grub_strcmp(cfgfile, g_iso_path) == 0)
+        {
+            return ventoy_browser_iso_part();
+        }
+    }
+
+    if (!ventoy_browser_mbuf_alloc(&mbuf))
+    {
+        return 1;
+    }
+
+    fs = (grub_fs_t)grub_strtoul(args[1], NULL, 16);
+    if (!fs)
+    {
+        debug("Invalid fs %s\n", args[1]);
+        return 1;
+    }
+    
+    dev = grub_device_open(args[0]);
+    if (!dev)
+    {
+        debug("Failed to open device %s\n", args[0]);
+        return 1;
+    }
+    
+    g_menu_fs = fs;
+    g_menu_device = args[0];
+    g_menu_dev = dev;
+    g_browser_list = NULL;
+
+    if (args[2][0] == '/' && args[2][1] == 0)
+    {
+        g_menu_path_len = 0;
+        g_menu_path_buf[0] = 0;
+        fs->fs_dir(dev, "/", ventoy_browser_iterate_dir, NULL);            
+    }
+    else
+    {
+        g_menu_path_len = grub_snprintf(g_menu_path_buf, sizeof(g_menu_path_buf), "%s", args[2]);
+        fs->fs_dir(dev, g_menu_path_buf, ventoy_browser_iterate_dir, NULL); 
+    }
+    grub_device_close(dev);
+
+    if (g_tree_view_menu_style == 0)
+    {
+        browser_ssprintf(&mbuf, "menuentry \"%-10s [../]\" --class=\"vtoyret\" VTOY_RET {\n  "
+                         "  echo 'return ...' \n}\n", "<--");        
+    }
+    else
+    {
+        browser_ssprintf(&mbuf, "menuentry \"[../]\" --class=\"vtoyret\" VTOY_RET {\n  "
+                         "  echo 'return ...' \n}\n");        
+    }
+
+    for (i = 1; i >= 0; i--)
+    {
+        while (1)
+        {
+            node = ventoy_browser_find_top_node(i);
+            if (node)
+            {
+                browser_ssprintf(&mbuf, "%s", node->menuentry);
+                ventoy_browser_mbuf_extend(&mbuf);
+                
+                if (node->prev)
+                {
+                    node->prev->next = node->next;
+                }
+                if (node->next)
+                {
+                    node->next->prev = node->prev;
+                }
+
+                if (node == g_browser_list)
+                {
+                    g_browser_list = node->next;
+                }
+                grub_free(node);
+            }
+            else
+            {
+                break;
+            }
+        }
+    }
+    g_browser_list = NULL;
+    
+    grub_snprintf(cfgfile, sizeof(cfgfile), "configfile mem:0x%lx:size:%d", (ulong)mbuf.buf, mbuf.pos);
+    grub_script_execute_sourcecode(cfgfile);
+
+    ventoy_browser_mbuf_free(&mbuf);
+    VENTOY_CMD_RETURN(GRUB_ERR_NONE);
+}
+
+grub_err_t ventoy_cmd_browser_disk(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    char cfgfile[64];
+    browser_mbuf mbuf;
+    
+    (void)ctxt;
+    (void)argc;
+    (void)args;
+
+    if (!ventoy_browser_mbuf_alloc(&mbuf))
+    {
+        return 1;
+    }
+
+    g_vtoy_dev = grub_env_get("vtoydev");
+
+    if (g_tree_view_menu_style == 0)
+    {
+        browser_ssprintf(&mbuf, "menuentry \"%-10s [Return]\" --class=\"vtoyret\" VTOY_RET {\n  "
+                         "  echo 'return ...' \n}\n", "<--");        
+    }
+    else
+    {
+        browser_ssprintf(&mbuf, "menuentry \"[Return]\" --class=\"vtoyret\" VTOY_RET {\n  "
+                         "  echo 'return ...' \n}\n");      
+    }
+
+    grub_disk_dev_iterate(ventoy_browser_iterate_disk, &mbuf);
+
+    grub_snprintf(cfgfile, sizeof(cfgfile), "configfile mem:0x%lx:size:%d", (ulong)mbuf.buf, mbuf.pos);
+    grub_script_execute_sourcecode(cfgfile);
+
+    ventoy_browser_mbuf_free(&mbuf);
+    VENTOY_CMD_RETURN(GRUB_ERR_NONE);
+}
+

GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_cmd.c

@@ -51,35 +51,11 @@
 
 GRUB_MOD_LICENSE ("GPLv3+");
 
-static grub_uint8_t g_check_mbr_data[440] = {
+static grub_uint8_t g_check_mbr_data[] = {
     0xEB, 0x63, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x01, 0x00, 0x00, 0x00,
-    0x00, 0x00, 0x00, 0x00, 0xFF, 0xFA, 0x90, 0x90, 0xF6, 0xC2, 0x80, 0x74, 0x05, 0xF6, 0xC2, 0x70,
-    0x74, 0x02, 0xB2, 0x80, 0xEA, 0x79, 0x7C, 0x00, 0x00, 0x31, 0xC0, 0x8E, 0xD8, 0x8E, 0xD0, 0xBC,
-    0x00, 0x20, 0xFB, 0xA0, 0x64, 0x7C, 0x3C, 0xFF, 0x74, 0x02, 0x88, 0xC2, 0x52, 0xBE, 0x90, 0x7D,
-    0xE8, 0x16, 0x01, 0xBE, 0x05, 0x7C, 0xB4, 0x41, 0xBB, 0xAA, 0x55, 0xCD, 0x13, 0x5A, 0x52, 0x72,
-    0x3D, 0x81, 0xFB, 0x55, 0xAA, 0x75, 0x37, 0x83, 0xE1, 0x01, 0x74, 0x32, 0x31, 0xC0, 0x89, 0x44,
-    0x04, 0x40, 0x88, 0x44, 0xFF, 0x89, 0x44, 0x02, 0xC7, 0x04, 0x10, 0x00, 0x66, 0x8B, 0x1E, 0x5C,
-    0x7C, 0x66, 0x89, 0x5C, 0x08, 0x66, 0x8B, 0x1E, 0x60, 0x7C, 0x66, 0x89, 0x5C, 0x0C, 0xC7, 0x44,
-    0x06, 0x00, 0x70, 0xB4, 0x42, 0xCD, 0x13, 0x72, 0x05, 0xBB, 0x00, 0x70, 0xEB, 0x76, 0xB4, 0x08,
-    0xCD, 0x13, 0x73, 0x0D, 0x5A, 0x84, 0xD2, 0x0F, 0x83, 0xD8, 0x00, 0xBE, 0x96, 0x7D, 0xE9, 0x82,
-    0x00, 0x66, 0x0F, 0xB6, 0xC6, 0x88, 0x64, 0xFF, 0x40, 0x66, 0x89, 0x44, 0x04, 0x0F, 0xB6, 0xD1,
-    0xC1, 0xE2, 0x02, 0x88, 0xE8, 0x88, 0xF4, 0x40, 0x89, 0x44, 0x08, 0x0F, 0xB6, 0xC2, 0xC0, 0xE8,
-    0x02, 0x66, 0x89, 0x04, 0x66, 0xA1, 0x60, 0x7C, 0x66, 0x09, 0xC0, 0x75, 0x4E, 0x66, 0xA1, 0x5C,
-    0x7C, 0x66, 0x31, 0xD2, 0x66, 0xF7, 0x34, 0x88, 0xD1, 0x31, 0xD2, 0x66, 0xF7, 0x74, 0x04, 0x3B,
-    0x44, 0x08, 0x7D, 0x37, 0xFE, 0xC1, 0x88, 0xC5, 0x30, 0xC0, 0xC1, 0xE8, 0x02, 0x08, 0xC1, 0x88,
-    0xD0, 0x5A, 0x88, 0xC6, 0xBB, 0x00, 0x70, 0x8E, 0xC3, 0x31, 0xDB, 0xB8, 0x01, 0x02, 0xCD, 0x13,
-    0x72, 0x1E, 0x8C, 0xC3, 0x60, 0x1E, 0xB9, 0x00, 0x01, 0x8E, 0xDB, 0x31, 0xF6, 0xBF, 0x00, 0x80,
-    0x8E, 0xC6, 0xFC, 0xF3, 0xA5, 0x1F, 0x61, 0xFF, 0x26, 0x5A, 0x7C, 0xBE, 0x93, 0x7D, 0xEB, 0x03,
-    0xBE, 0x99, 0x7D, 0xE8, 0x33, 0x00, 0xBE, 0x9C, 0x7D, 0xE8, 0x2D, 0x00, 0xCD, 0x18, 0xEB, 0xFE,
-    0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58, 0x58,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,    
     0x56, 0x54, 0x00, 0x47, 0x65, 0x00, 0x48, 0x44, 0x00, 0x52, 0x64, 0x00, 0x20, 0x45, 0x72, 0x0D,
-    0x0A, 0x00, 0xBB, 0x01, 0x00, 0xB4, 0x0E, 0xCD, 0x10, 0xAC, 0x3C, 0x00, 0x75, 0xF4, 0xC3, 0x00,
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 
 };
 
 initrd_info *g_initrd_img_list = NULL;
@@ -126,6 +102,7 @@ ventoy_img_chunk_list g_img_chunk_list;
 int g_wimboot_enable = 0;
 ventoy_img_chunk_list g_wimiso_chunk_list;
 char *g_wimiso_path = NULL;
+grub_uint32_t g_wimiso_size = 0;
 
 int g_vhdboot_enable = 0;
 
@@ -140,14 +117,16 @@ ventoy_gpt_info *g_ventoy_part_info = NULL;
 grub_uint64_t g_ventoy_disk_size = 0;
 grub_uint64_t g_ventoy_disk_part_size[2];
 
-static char *g_tree_script_buf = NULL;
-static int g_tree_script_pos = 0;
+char *g_tree_script_buf = NULL;
+int g_tree_script_pos = 0;
+int g_tree_script_pre = 0;
 
 static char *g_list_script_buf = NULL;
 static int g_list_script_pos = 0;
 
 static char *g_part_list_buf = NULL;
 static int g_part_list_pos = 0;
+static grub_uint64_t g_part_end_max = 0;
 
 static int g_video_mode_max = 0;
 static int g_video_mode_num = 0;
@@ -156,14 +135,18 @@ static ventoy_video_mode *g_video_mode_list = NULL;
 static int g_enumerate_time_checked = 0;
 static grub_uint64_t g_enumerate_start_time_ms;
 static grub_uint64_t g_enumerate_finish_time_ms;
-static int g_vtoy_file_flt[VTOY_FILE_FLT_BUTT] = {0};
+int g_vtoy_file_flt[VTOY_FILE_FLT_BUTT] = {0};
+
+static char g_iso_vd_id_publisher[130];
+static char g_iso_vd_id_prepare[130];
+static char g_iso_vd_id_application[130];
 
 static int g_pager_flag = 0;
 static char g_old_pager[32];
 
 static const char *g_vtoy_winpeshl_ini = "[LaunchApps]\r\nvtoyjump.exe";
 
-static const char *g_menu_class[] = 
+const char *g_menu_class[img_type_max] = 
 {
     "vtoyiso", "vtoywim", "vtoyefi", "vtoyimg", "vtoyvhd", "vtoyvtoy"
 };
@@ -178,7 +161,9 @@ static char g_vtoy_prompt_msg[64];
 
 static char g_json_case_mis_path[32];
 
-static int ventoy_get_fs_type(const char *fs)
+static ventoy_vlnk_part *g_vlnk_part_list = NULL;
+
+int ventoy_get_fs_type(const char *fs)
 {
     if (NULL == fs)
     {
@@ -655,12 +640,8 @@ static int ventoy_check_official_device(grub_device_t dev)
     grub_memset(mbr, 0, 512);
     grub_disk_read(disk, 0, 0, 512, mbr);
     grub_disk_close(disk);
-
-    g_check_mbr_data[92] = mbr[92];
-    g_check_mbr_data[102] = mbr[102];
-    g_check_mbr_data[103] = mbr[103];
-    grub_memcpy(g_check_mbr_data + 0x180, mbr + 0x180, 16);
-    if (grub_memcmp(g_check_mbr_data, mbr, 440))
+    
+    if (grub_memcmp(g_check_mbr_data, mbr, 0x30) || grub_memcmp(g_check_mbr_data + 0x30, mbr + 0x190, 16))
     {
         return ventoy_set_check_result(12);
     }
@@ -710,10 +691,10 @@ grub_file_t ventoy_grub_file_open(enum grub_file_type type, const char *fmt, ...
 {
     va_list ap;
     grub_file_t file;
-    char fullpath[256] = {0};
+    char fullpath[512] = {0};
 
     va_start (ap, fmt);
-    grub_vsnprintf(fullpath, 255, fmt, ap);
+    grub_vsnprintf(fullpath, 511, fmt, ap);
     va_end (ap);
 
     file = grub_file_open(fullpath, type);
@@ -726,44 +707,18 @@ grub_file_t ventoy_grub_file_open(enum grub_file_type type, const char *fmt, ...
     return file;
 }
 
-int ventoy_is_file_exist(const char *fmt, ...)
-{
-    va_list ap;
-    int len;
-    char *pos = NULL;
-    char buf[256] = {0};
-
-    grub_snprintf(buf, sizeof(buf), "%s", "[ -f \"");
-    pos = buf + 6;
-
-    va_start (ap, fmt);
-    len = grub_vsnprintf(pos, 255, fmt, ap);
-    va_end (ap);
-
-    grub_strncpy(pos + len, "\" ]", 3);
-
-    debug("script exec %s\n", buf);
-
-    if (0 == grub_script_execute_sourcecode(buf))
-    {
-        return 1;
-    }
-
-    return 0;
-}
-
 int ventoy_is_dir_exist(const char *fmt, ...)
 {
     va_list ap;
     int len;
     char *pos = NULL;
-    char buf[256] = {0};
+    char buf[512] = {0};
 
     grub_snprintf(buf, sizeof(buf), "%s", "[ -d \"");
     pos = buf + 6;
 
     va_start (ap, fmt);
-    len = grub_vsnprintf(pos, 255, fmt, ap);
+    len = grub_vsnprintf(pos, 511, fmt, ap);
     va_end (ap);
 
     grub_strncpy(pos + len, "\" ]", 3);
@@ -1034,6 +989,7 @@ static grub_err_t ventoy_cmd_load_wimboot(grub_extcmd_context_t ctxt, int argc,
     (void)args;
 
     g_wimboot_enable = 0;
+    g_wimiso_size = 0;
     grub_check_free(g_wimiso_path);
     grub_check_free(g_wimiso_chunk_list.chunk);
 
@@ -1057,7 +1013,7 @@ static grub_err_t ventoy_cmd_load_wimboot(grub_extcmd_context_t ctxt, int argc,
 
     g_wimboot_enable = 1;
     g_wimiso_path = grub_strdup(args[0]);
-    
+    g_wimiso_size = (grub_uint32_t)(file->size);
     grub_file_close(file);
 
     return 0;
@@ -1101,6 +1057,11 @@ static grub_err_t ventoy_cmd_concat_efi_iso(grub_extcmd_context_t ctxt, int argc
         return 1;
     }
 
+    if (grub_strncmp(args[0], g_iso_path, grub_strlen(g_iso_path)))
+    {
+        file->vlnk = 1;
+    }
+
     totlen += ventoy_align_2k(file->size);
 
     dirent = (ventoy_iso9660_override *)(buf + offset);
@@ -1626,7 +1587,7 @@ void ventoy_swap_img(img_info *img1, img_info *img2)
     grub_memcpy(img2, &g_img_swap_tmp, sizeof(img_info));
 }
 
-static int ventoy_img_name_valid(const char *filename, grub_size_t namelen)
+int ventoy_img_name_valid(const char *filename, grub_size_t namelen)
 {
     (void)namelen;
     
@@ -1638,12 +1599,233 @@ static int ventoy_img_name_valid(const char *filename, grub_size_t namelen)
     return 1;
 }
 
+static int ventoy_vlnk_iterate_partition(struct grub_disk *disk, const grub_partition_t partition, void *data)
+{
+    ventoy_vlnk_part *node = NULL;
+    grub_uint32_t SelfSig;
+    grub_uint32_t *pSig = (grub_uint32_t *)data;
+
+    /* skip Ventoy partition 1/2 */
+    grub_memcpy(&SelfSig, g_ventoy_part_info->MBR.BootCode + 0x1b8, 4);
+    if (partition->number < 2 && SelfSig == *pSig)
+    {
+        return 0;
+    }
+
+    node = grub_zalloc(sizeof(ventoy_vlnk_part));
+    if (node)
+    {
+        node->disksig = *pSig;
+        node->partoffset = (partition->start << GRUB_DISK_SECTOR_BITS);
+        grub_snprintf(node->disk, sizeof(node->disk) - 1, "%s", disk->name);
+        grub_snprintf(node->device, sizeof(node->device) - 1, "%s,%d", disk->name, partition->number + 1);
+
+        node->next = g_vlnk_part_list;
+        g_vlnk_part_list = node;
+    }
+
+    return 0;
+}
+
+static int ventoy_vlnk_iterate_disk(const char *name, void *data)
+{
+    grub_disk_t disk;
+    grub_uint32_t sig;
+
+    (void)data;
+
+    disk = grub_disk_open(name);
+    if (disk)
+    {
+        grub_disk_read(disk, 0, 0x1b8, 4, &sig);
+        grub_partition_iterate(disk, ventoy_vlnk_iterate_partition, &sig);
+        grub_disk_close(disk);
+    }
+
+    return 0;
+}
+
+static int ventoy_vlnk_probe_fs(ventoy_vlnk_part *cur)
+{
+    const char *fs[ventoy_fs_max + 1] = 
+    {
+        "exfat", "ntfs", "ext2", "xfs", "udf", "fat", NULL
+    };
+
+    if (!cur->dev)
+    {
+        cur->dev = grub_device_open(cur->device);
+    }
+
+    if (cur->dev)
+    {
+        cur->fs = grub_fs_list_probe(cur->dev, fs);
+    }
+
+    return 0;
+}
+
+static int ventoy_check_vlnk_data(ventoy_vlnk *vlnk, int print, char *dst, int size)
+{
+    int diskfind = 0;
+    int partfind = 0;
+    int filefind = 0;
+    char *disk, *device;
+    grub_uint32_t readcrc, calccrc;
+    ventoy_vlnk_part *cur;
+    grub_fs_t fs = NULL;
+    
+    if (grub_memcmp(&(vlnk->guid), &g_ventoy_guid, sizeof(ventoy_guid)))
+    {
+        if (print)
+        {
+            grub_printf("VLNK invalid guid\n");
+            grub_refresh();
+        }
+        return 1;
+    }
+
+    readcrc = vlnk->crc32;
+    vlnk->crc32 = 0;
+    calccrc = grub_getcrc32c(0, vlnk, sizeof(ventoy_vlnk));
+    if (readcrc != calccrc)
+    {
+        if (print)
+        {
+            grub_printf("VLNK invalid crc 0x%08x 0x%08x\n", calccrc, readcrc);
+            grub_refresh();
+        }
+        return 1;
+    }
+
+    if (!g_vlnk_part_list)
+    {
+        grub_disk_dev_iterate(ventoy_vlnk_iterate_disk, NULL);
+    }
+
+    for (cur = g_vlnk_part_list; cur && filefind == 0; cur = cur->next)
+    {
+        if (cur->disksig == vlnk->disk_signature)
+        {
+            diskfind = 1;
+            disk = cur->disk;
+            if (cur->partoffset == vlnk->part_offset)
+            {
+                partfind = 1;
+                device = cur->device;
+
+                if (cur->probe == 0)
+                {
+                    cur->probe = 1;
+                    ventoy_vlnk_probe_fs(cur);
+                }
+    
+                if (!fs)
+                {
+                    fs = cur->fs;
+                }
+                
+                if (cur->fs)
+                {
+                    struct grub_file file;
+
+                    grub_memset(&file, 0, sizeof(file));
+                    file.device = cur->dev;
+                    if (cur->fs->fs_open(&file, vlnk->filepath) == GRUB_ERR_NONE)
+                    {
+                        filefind = 1;
+                        cur->fs->fs_close(&file);
+                        grub_snprintf(dst, size - 1, "(%s)%s", cur->device, vlnk->filepath);
+                    }
+                }
+            }
+        }
+    }
+
+    if (print)
+    {
+        grub_printf("\n==== VLNK Information ====\n"
+                    "Disk Signature: %08x\n"
+                    "Partition Offset: %llu\n"
+                    "File Path: <%s>\n\n",
+                    vlnk->disk_signature, (ulonglong)vlnk->part_offset, vlnk->filepath);
+
+        if (diskfind)
+        {
+            grub_printf("Disk Find: [ YES ] [ %s ]\n", disk);
+        }
+        else
+        {
+            grub_printf("Disk Find: [ NO ]\n");
+        }
+        
+        if (partfind)
+        {
+            grub_printf("Part Find: [ YES ] [ %s ] [ %s ]\n", device, fs ? fs->name : "N/A");
+        }
+        else
+        {
+            grub_printf("Part Find: [ NO ]\n");
+        }
+        grub_printf("File Find: [ %s ]\n", filefind ? "YES" : "NO");
+        if (filefind)
+        {
+            grub_printf("VLNK File: <%s>\n", dst);
+        }
+        
+        grub_printf("\n");
+        grub_refresh();
+    }
+
+    return (1 - filefind);
+}
+
+int ventoy_add_vlnk_file(char *dir, const char *name)
+{
+    int rc = 1;
+    char src[512];
+    char dst[512];
+    grub_file_t file = NULL;
+    ventoy_vlnk vlnk;
+
+    if (!dir)
+    {
+        grub_snprintf(src, sizeof(src), "%s%s", g_iso_path, name);
+    }
+    else if (dir[0] == '/')
+    {
+        grub_snprintf(src, sizeof(src), "%s%s%s", g_iso_path, dir, name);
+    }
+    else
+    {
+        grub_snprintf(src, sizeof(src), "%s/%s%s", g_iso_path, dir, name);
+    }
+
+    file = grub_file_open(src, VENTOY_FILE_TYPE);
+    if (!file)
+    {
+        return 1;
+    }
+
+    grub_memset(&vlnk, 0, sizeof(vlnk));
+    grub_file_read(file, &vlnk, sizeof(vlnk));
+    grub_file_close(file);
+
+    if (ventoy_check_vlnk_data(&vlnk, 0, dst, sizeof(dst)) == 0)
+    {
+        rc = grub_file_add_vlnk(src, dst);        
+    }
+
+    return rc;
+}
+
 static int ventoy_collect_img_files(const char *filename, const struct grub_dirhook_info *info, void *data)
 {
     //int i = 0;
     int type = 0;
     int ignore = 0;
     int index = 0;
+    int vlnk = 0;
     grub_size_t len;
     img_info *img;
     img_info *tail;
@@ -1812,6 +1994,18 @@ static int ventoy_collect_img_files(const char *filename, const struct grub_dirh
                 return 0; 
             }
         }
+
+        if (info->size == VTOY_FILT_MIN_FILE_SIZE || info->size == 0)
+        {
+            if (grub_file_is_vlnk_suffix(filename, len))
+            {
+                vlnk = 1;
+                if (ventoy_add_vlnk_file(node->dir, filename) != 0)
+                {
+                    return 0;
+                }
+            }
+        }
         
         img = grub_zalloc(sizeof(img_info));
         if (img)
@@ -1823,9 +2017,16 @@ static int ventoy_collect_img_files(const char *filename, const struct grub_dirh
             img->pathlen = grub_snprintf(img->path, sizeof(img->path), "%s%s", node->dir, img->name);
 
             img->size = info->size;
-            if (0 == img->size)
+            if (vlnk || 0 == img->size)
             {
-                img->size = ventoy_grub_get_file_size("%s/%s%s", g_iso_path, node->dir, filename);
+                if (node->dir[0] == '/')
+                {
+                    img->size = ventoy_grub_get_file_size("%s%s%s", g_iso_path, node->dir, filename);                    
+                }
+                else
+                {
+                    img->size = ventoy_grub_get_file_size("%s/%s%s", g_iso_path, node->dir, filename);                    
+                }
             }
 
             if (img->size < VTOY_FILT_MIN_FILE_SIZE)
@@ -2098,6 +2299,8 @@ static int ventoy_dynamic_tree_menu(img_iterator_node *node)
                               "}\n", "return");
             }
         }
+
+        g_tree_script_pre = g_tree_script_pos;
     }
     else
     {
@@ -2370,6 +2573,40 @@ static grub_err_t ventoy_cmd_ext_select_img_path(grub_extcmd_context_t ctxt, int
     VENTOY_CMD_RETURN(GRUB_ERR_NONE);
 }
 
+static char g_fake_vlnk_src[512];
+static char g_fake_vlnk_dst[512];
+static grub_uint64_t g_fake_vlnk_size;
+static grub_err_t ventoy_cmd_set_fake_vlnk(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    (void)ctxt;
+    (void)argc;
+    (void)args;
+
+    g_fake_vlnk_size = (grub_uint64_t)grub_strtoull(args[2], NULL, 10);
+
+    grub_strncpy(g_fake_vlnk_dst, args[0], sizeof(g_fake_vlnk_dst));
+    grub_snprintf(g_fake_vlnk_src, sizeof(g_fake_vlnk_src), "%s/________VENTOYVLNK.vlnk.%s", g_iso_path, args[1]);
+
+    grub_file_vtoy_vlnk(g_fake_vlnk_src, g_fake_vlnk_dst);
+
+    VENTOY_CMD_RETURN(GRUB_ERR_NONE);
+}
+
+static grub_err_t ventoy_cmd_reset_fake_vlnk(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    (void)ctxt;
+    (void)argc;
+    (void)args;
+
+    g_fake_vlnk_src[0] = 0;
+    g_fake_vlnk_dst[0] = 0;
+    g_fake_vlnk_size = 0;
+    grub_file_vtoy_vlnk(NULL, NULL);
+    
+    VENTOY_CMD_RETURN(GRUB_ERR_NONE);
+}
+
+
 static grub_err_t ventoy_cmd_chosen_img_path(grub_extcmd_context_t ctxt, int argc, char **args)
 {
     char value[32];
@@ -2384,6 +2621,18 @@ static grub_err_t ventoy_cmd_chosen_img_path(grub_extcmd_context_t ctxt, int arg
         return grub_error(GRUB_ERR_BAD_ARGUMENT, "Usage: %s {var}", cmd_raw_name);
     }
 
+    if (g_fake_vlnk_src[0] && g_fake_vlnk_dst[0])
+    {
+        grub_env_set(args[0], grub_strchr(g_fake_vlnk_src, '/'));
+        if (argc > 1)
+        {
+            grub_snprintf(value, sizeof(value), "%llu", (ulonglong)(g_fake_vlnk_size));
+            grub_env_set(args[1], value);        
+        }
+
+        goto end;
+    }
+
     id = grub_env_get("chosen");
 
     pos = grub_strstr(id, "VID_");
@@ -2409,6 +2658,7 @@ static grub_err_t ventoy_cmd_chosen_img_path(grub_extcmd_context_t ctxt, int arg
         grub_env_set(args[1], value);        
     }
 
+end:
     g_svd_replace_offset = 0;
 
     VENTOY_CMD_RETURN(GRUB_ERR_NONE);
@@ -2776,6 +3026,7 @@ void ventoy_fill_os_param(grub_file_t file, ventoy_os_param *param)
 {
     char *pos;
     const char *fs = NULL;
+    const char *val = NULL;
     const char *cdprompt = NULL;
     grub_uint32_t i;
     grub_uint8_t  chksum = 0;
@@ -2822,6 +3073,17 @@ void ventoy_fill_os_param(grub_file_t file, ventoy_os_param *param)
         param->vtoy_reserved[3] = 1;
     }
 
+    param->vtoy_reserved[5] = 0;
+    val = ventoy_get_env("VTOY_LINUX_REMOUNT");
+    if (val && val[0] == '1' && val[1] == 0)
+    {
+        param->vtoy_reserved[5] = 1;
+    }
+
+    /* ventoy_disk_signature used for vlnk */
+    param->vtoy_reserved[6] = file->vlnk;
+    grub_memcpy(param->vtoy_reserved + 7, g_ventoy_part_info->MBR.BootCode + 0x1b8, 4);
+
     /* calculate checksum */
     for (i = 0; i < sizeof(ventoy_os_param); i++)
     {
@@ -3666,6 +3928,7 @@ end:
 
 static int ventoy_img_partition_callback (struct grub_disk *disk, const grub_partition_t partition, void *data)
 {
+    grub_uint64_t end_max = 0;
     int *pCnt = (int *)data;
     
     (void)disk;
@@ -3674,6 +3937,12 @@ static int ventoy_img_partition_callback (struct grub_disk *disk, const grub_par
     g_part_list_pos += grub_snprintf(g_part_list_buf + g_part_list_pos, VTOY_MAX_SCRIPT_BUF - g_part_list_pos,
         "0 %llu linear /dev/ventoy %llu\n",
         (ulonglong)partition->len, (ulonglong)partition->start);
+
+    end_max = (partition->len + partition->start) * 512;
+    if (end_max > g_part_end_max)
+    {
+        g_part_end_max = end_max;
+    }
         
     return 0;
 }
@@ -3688,6 +3957,7 @@ static grub_err_t ventoy_cmd_img_part_info(grub_extcmd_context_t ctxt, int argc,
     (void)ctxt;
 
     g_part_list_pos = 0;
+    g_part_end_max = 0;
     grub_env_unset("vtoy_img_part_file");
 
     if (argc != 1)
@@ -3716,6 +3986,9 @@ static grub_err_t ventoy_cmd_img_part_info(grub_extcmd_context_t ctxt, int argc,
 
     grub_snprintf(buf, sizeof(buf), "%d", cnt);
     grub_env_set("vtoy_img_part_cnt", buf);
+    
+    grub_snprintf(buf, sizeof(buf), "%llu", (ulonglong)g_part_end_max);
+    grub_env_set("vtoy_img_max_part_end", buf);
 
 end:
 
@@ -5092,6 +5365,206 @@ out:
     return ret;
 }
 
+static grub_err_t grub_cmd_vlnk_dump_part(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    int n = 0;
+    ventoy_vlnk_part *node;
+    
+    (void)ctxt;
+    (void)argc;
+    (void)args;
+
+    for (node = g_vlnk_part_list; node; node = node->next)
+    {
+        grub_printf("[%d] %s  disksig:%08x  offset:%llu  fs:%s\n", 
+                    ++n, node->device, node->disksig, 
+                    (ulonglong)node->partoffset, (node->fs ? node->fs->name : "N/A"));
+    }
+
+    return 0;
+}
+
+static grub_err_t grub_cmd_is_vlnk_name(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    int len = 0;
+    
+    (void)ctxt;
+
+    if (argc == 1)
+    {
+        len = (int)grub_strlen(args[0]);
+        if (grub_file_is_vlnk_suffix(args[0], len))
+        {
+            return 0;
+        }        
+    }
+
+    return 1;
+}
+
+static grub_err_t grub_cmd_get_vlnk_dst(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    int vlnk = 0;
+    const char *name = NULL;
+    
+    (void)ctxt;
+
+    if (argc == 2)
+    {
+        grub_env_unset(args[1]);
+        name = grub_file_get_vlnk(args[0], &vlnk);
+        if (vlnk)
+        {
+            debug("VLNK SRC: <%s>\n", args[0]);
+            debug("VLNK DST: <%s>\n", name);
+            grub_env_set(args[1], name);
+            return 0;
+        }
+    }
+
+    return 1;
+}
+
+static grub_err_t grub_cmd_check_vlnk(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    int ret = 1;
+    int len = 0;
+    grub_file_t file = NULL;
+    ventoy_vlnk vlnk;
+    char dst[512];
+    
+    (void)ctxt;
+
+    if (argc != 1)
+    {
+        goto out;
+    }
+
+    len = (int)grub_strlen(args[0]);
+    if (!grub_file_is_vlnk_suffix(args[0], len))
+    {
+        grub_printf("Invalid vlnk suffix\n");
+        goto out;
+    }
+
+    file = grub_file_open(args[0], VENTOY_FILE_TYPE | GRUB_FILE_TYPE_NO_VLNK);
+    if (!file)
+    {
+        grub_printf("Failed to open %s\n", args[0]);
+        goto out;
+    }
+
+    if (file->size != 32768)
+    {
+        grub_printf("Invalid vlnk file (size=%llu).\n", (ulonglong)file->size);
+        goto out;
+    }
+
+    grub_memset(&vlnk, 0, sizeof(vlnk));
+    grub_file_read(file, &vlnk, sizeof(vlnk));
+
+    ret = ventoy_check_vlnk_data(&vlnk, 1, dst, sizeof(dst));
+
+out:
+
+    grub_refresh();
+    check_free(file, grub_file_close);
+    grub_errno = GRUB_ERR_NONE;
+    return ret;
+}
+
+static grub_err_t ventoy_iso_vd_id_clear(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    (void)ctxt;
+    (void)argc;
+    (void)args;
+
+    g_iso_vd_id_publisher[0] = 0;
+    g_iso_vd_id_prepare[0] = 0;
+    g_iso_vd_id_application[0] = 0;
+
+    return 0;
+}
+
+static grub_err_t ventoy_cmd_iso_vd_id_parse(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    int ret = 1;
+    int offset = 318;
+    grub_file_t file = NULL;
+    
+    (void)ctxt;
+    (void)argc;
+
+    file = grub_file_open(args[0], VENTOY_FILE_TYPE);
+    if (!file)
+    {
+        grub_printf("Failed to open %s\n", args[0]);
+        goto out;
+    }
+
+    grub_file_seek(file, 16 * 2048 + offset);
+    grub_file_read(file, g_iso_vd_id_publisher, 128);
+
+    offset += 128;
+    grub_file_seek(file, 16 * 2048 + offset);
+    grub_file_read(file, g_iso_vd_id_prepare, 128);
+
+    offset += 128;
+    grub_file_seek(file, 16 * 2048 + offset);
+    grub_file_read(file, g_iso_vd_id_application, 128);
+
+out:
+
+    check_free(file, grub_file_close);
+    grub_errno = GRUB_ERR_NONE;
+    return ret;
+}
+
+static grub_err_t ventoy_cmd_iso_vd_id_begin(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    int ret = 1;
+    char *id = g_iso_vd_id_publisher;
+    
+    (void)ctxt;
+    (void)argc;
+
+    if (args[0][0] == '1')
+    {
+        id = g_iso_vd_id_prepare;
+    }
+    else if (args[0][0] == '2')
+    {
+        id = g_iso_vd_id_application;
+    }
+
+    if (args[1][0] == '0' && grub_strncasecmp(id, args[2], grub_strlen(args[2])) == 0)
+    {
+        ret = 0;
+    }
+    
+    if (args[1][0] == '1' && grub_strncmp(id, args[2], grub_strlen(args[2])) == 0)
+    {
+        ret = 0;
+    }
+
+    grub_errno = GRUB_ERR_NONE;
+    return ret;
+}
+
+static grub_err_t ventoy_cmd_fn_mutex_lock(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    (void)ctxt;
+    (void)argc;
+
+    g_ventoy_fn_mutex = 0;
+    if (argc == 1 && args[0][0] == '1' && args[0][1] == 0)
+    {
+        g_ventoy_fn_mutex = 1;
+    }
+
+    VENTOY_CMD_RETURN(GRUB_ERR_NONE);
+}
+
 int ventoy_env_init(void)
 {
     char buf[64];
@@ -5143,6 +5616,8 @@ int ventoy_env_init(void)
 
 static cmd_para ventoy_cmds[] = 
 {
+    { "vt_browser_disk",  ventoy_cmd_browser_disk,  0, NULL, "",   "",    NULL },
+    { "vt_browser_dir",  ventoy_cmd_browser_dir,  0, NULL, "",   "",    NULL },
     { "vt_incr",  ventoy_cmd_incr,  0, NULL, "{Var} {INT}",   "Increase integer variable",    NULL },
     { "vt_mod",  ventoy_cmd_mod,  0, NULL, "{Int} {Int} {Var}",   "mod integer variable",    NULL },
     { "vt_strstr",  ventoy_cmd_strstr,  0, NULL, "",   "",    NULL },
@@ -5251,8 +5726,11 @@ static cmd_para ventoy_cmds[] =
     { "vt_unix_parse_freebsd_ver", ventoy_cmd_unix_freebsd_ver, 0, NULL, "", "", NULL },
     { "vt_unix_parse_freebsd_ver_elf", ventoy_cmd_unix_freebsd_ver_elf, 0, NULL, "", "", NULL },
     { "vt_unix_reset", ventoy_cmd_unix_reset, 0, NULL, "", "", NULL },
+    { "vt_unix_check_vlnk", ventoy_cmd_unix_check_vlnk, 0, NULL, "", "", NULL },
     { "vt_unix_replace_conf", ventoy_cmd_unix_replace_conf, 0, NULL, "", "", NULL },
+    { "vt_unix_replace_grub_conf", ventoy_cmd_unix_replace_grub_conf, 0, NULL, "", "", NULL },
     { "vt_unix_replace_ko", ventoy_cmd_unix_replace_ko, 0, NULL, "", "", NULL },
+    { "vt_unix_ko_fillmap", ventoy_cmd_unix_ko_fillmap, 0, NULL, "", "", NULL },
     { "vt_unix_fill_image_desc", ventoy_cmd_unix_fill_image_desc, 0, NULL, "", "", NULL },
     { "vt_unix_gzip_new_ko", ventoy_cmd_unix_gzip_newko, 0, NULL, "", "", NULL },
     { "vt_unix_chain_data", ventoy_cmd_unix_chain_data, 0, NULL, "", "", NULL },
@@ -5267,6 +5745,8 @@ static cmd_para ventoy_cmds[] =
     { "vt_sel_wimboot", ventoy_cmd_sel_wimboot, 0, NULL, "", "", NULL },
     { "vt_set_wim_load_prompt", ventoy_cmd_set_wim_prompt, 0, NULL, "", "", NULL },
     { "vt_set_theme", ventoy_cmd_set_theme, 0, NULL, "", "", NULL },
+    { "vt_set_theme_path", ventoy_cmd_set_theme_path, 0, NULL, "", "", NULL },
+    { "vt_select_theme_cfg", ventoy_cmd_select_theme_cfg, 0, NULL, "", "", NULL },
 
     { "vt_get_efi_vdisk_offset", ventoy_cmd_get_efivdisk_offset, 0, NULL, "", "", NULL },
     { "vt_search_replace_initrd", ventoy_cmd_search_replace_initrd, 0, NULL, "", "", NULL },
@@ -5276,6 +5756,16 @@ static cmd_para ventoy_cmds[] =
     { "vt_append_extra_sector", ventoy_cmd_append_ext_sector, 0, NULL, "", "", NULL },
     { "gptpriority", grub_cmd_gptpriority, 0, NULL, "", "", NULL },
     { "vt_syslinux_need_nojoliet", grub_cmd_syslinux_nojoliet, 0, NULL, "", "", NULL },
+    { "vt_vlnk_check", grub_cmd_check_vlnk, 0, NULL, "", "", NULL },
+    { "vt_vlnk_dump_part", grub_cmd_vlnk_dump_part, 0, NULL, "", "", NULL },
+    { "vt_is_vlnk_name", grub_cmd_is_vlnk_name, 0, NULL, "", "", NULL },
+    { "vt_get_vlnk_dst", grub_cmd_get_vlnk_dst, 0, NULL, "", "", NULL },
+    { "vt_set_fake_vlnk", ventoy_cmd_set_fake_vlnk, 0, NULL, "", "", NULL },
+    { "vt_reset_fake_vlnk", ventoy_cmd_reset_fake_vlnk, 0, NULL, "", "", NULL },
+    { "vt_iso_vd_id_parse", ventoy_cmd_iso_vd_id_parse, 0, NULL, "", "", NULL },
+    { "vt_iso_vd_id_clear", ventoy_iso_vd_id_clear, 0, NULL, "", "", NULL },
+    { "vt_iso_vd_id_begin", ventoy_cmd_iso_vd_id_begin, 0, NULL, "", "", NULL },
+    { "vt_fn_mutex_lock", ventoy_cmd_fn_mutex_lock, 0, NULL, "", "", NULL },
 };
 
 int ventoy_register_all_cmd(void)

GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_def.h

@@ -35,6 +35,7 @@
 #define VTOY_SIZE_4MB     (4 * 1024 * 1024)
 #define VTOY_SIZE_512KB   (512 * 1024)
 #define VTOY_SIZE_1KB     1024
+#define VTOY_SIZE_32KB    (32 * 1024)
 
 #define JSON_SUCCESS    0
 #define JSON_FAILED     1
@@ -304,6 +305,7 @@ extern ventoy_guid  g_ventoy_guid;
 extern ventoy_img_chunk_list g_img_chunk_list;
 extern ventoy_img_chunk_list g_wimiso_chunk_list;
 extern char *g_wimiso_path;
+extern grub_uint32_t g_wimiso_size;
 extern char g_arch_mode_suffix[64];
 extern const char *g_menu_prefix[img_type_max];
 
@@ -314,6 +316,9 @@ void ventoy_debug(const char *fmt, ...);
 #define vtoy_ssprintf(buf, pos, fmt, ...) \
     pos += grub_snprintf(buf + pos, VTOY_MAX_SCRIPT_BUF - pos, fmt, __VA_ARGS__)
 
+#define browser_ssprintf(mbuf, fmt, args...) \
+    (mbuf)->pos += grub_snprintf((mbuf)->buf + (mbuf)->pos, (mbuf)->max - (mbuf)->pos, fmt, ##args)
+
 #define FLAG_HEADER_RESERVED          0x00000001
 #define FLAG_HEADER_COMPRESSION       0x00000002
 #define FLAG_HEADER_READONLY          0x00000004
@@ -604,7 +609,6 @@ grub_err_t ventoy_cmd_trailer_cpio(grub_extcmd_context_t ctxt, int argc, char **
 int ventoy_cpio_newc_fill_head(void *buf, int filesize, const void *filedata, const char *name);
 grub_file_t ventoy_grub_file_open(enum grub_file_type type, const char *fmt, ...);
 grub_uint64_t ventoy_grub_get_file_size(const char *fmt, ...);
-int ventoy_is_file_exist(const char *fmt, ...);
 int ventoy_is_dir_exist(const char *fmt, ...);
 int ventoy_fill_data(grub_uint32_t buflen, char *buffer);
 grub_err_t ventoy_cmd_load_plugin(grub_extcmd_context_t ctxt, int argc, char **args);
@@ -826,6 +830,7 @@ typedef struct ventoy_video_mode
 typedef struct file_fullpath
 {
     char path[256];
+    int vlnk_add;
 }file_fullpath;
 
 typedef struct theme_list
@@ -1014,6 +1019,7 @@ extern int g_ventoy_grub2_mode;
 extern int g_ventoy_wimboot_mode;
 extern int g_ventoy_iso_uefi_drv;
 extern int g_ventoy_case_insensitive;
+extern int g_ventoy_fn_mutex;
 extern grub_uint8_t g_ventoy_chain_type;
 extern int g_vhdboot_enable;
 
@@ -1077,6 +1083,8 @@ int ventoy_get_block_list(grub_file_t file, ventoy_img_chunk_list *chunklist, gr
 int ventoy_check_block_list(grub_file_t file, ventoy_img_chunk_list *chunklist, grub_disk_addr_t start);
 void ventoy_plugin_dump_persistence(void);
 grub_err_t ventoy_cmd_set_theme(grub_extcmd_context_t ctxt, int argc, char **args);
+grub_err_t ventoy_cmd_set_theme_path(grub_extcmd_context_t ctxt, int argc, char **args);
+grub_err_t ventoy_cmd_select_theme_cfg(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_plugin_check_json(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_check_password(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_linux_get_main_initrd_index(grub_extcmd_context_t ctxt, int argc, char **args);
@@ -1086,8 +1094,11 @@ grub_err_t ventoy_cmd_locate_wim_patch(grub_extcmd_context_t ctxt, int argc, cha
 grub_err_t ventoy_cmd_unix_chain_data(grub_extcmd_context_t ctxt, int argc, char **args);
 int ventoy_get_disk_guid(const char *filename, grub_uint8_t *guid, grub_uint8_t *signature);
 grub_err_t ventoy_cmd_unix_reset(grub_extcmd_context_t ctxt, int argc, char **args);
+grub_err_t ventoy_cmd_unix_check_vlnk(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_unix_replace_conf(grub_extcmd_context_t ctxt, int argc, char **args);
+grub_err_t ventoy_cmd_unix_replace_grub_conf(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_unix_replace_ko(grub_extcmd_context_t ctxt, int argc, char **args);
+grub_err_t ventoy_cmd_unix_ko_fillmap(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_unix_fill_image_desc(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_unix_gzip_newko(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_unix_freebsd_ver(grub_extcmd_context_t ctxt, int argc, char **args);
@@ -1128,5 +1139,72 @@ int ventoy_chain_file_read(const char *path, int offset, int len, void *buf);
 
 extern ventoy_grub_param *g_grub_param;
 
+#pragma pack(1)
+#define VENTOY_UNIX_SEG_MAGIC0    0x11223344
+#define VENTOY_UNIX_SEG_MAGIC1    0x55667788
+#define VENTOY_UNIX_SEG_MAGIC2    0x99aabbcc
+#define VENTOY_UNIX_SEG_MAGIC3    0xddeeff00
+#define VENTOY_UNIX_MAX_SEGNUM    40960
+struct g_ventoy_seg {
+    grub_uint64_t seg_start_bytes;
+    grub_uint64_t seg_end_bytes;
+};
+
+struct g_ventoy_map{
+    grub_uint32_t magic1[4];
+    grub_uint32_t magic2[4];
+    grub_uint64_t segnum;
+    grub_uint64_t disksize;
+    grub_uint8_t diskuuid[16];
+    struct g_ventoy_seg seglist[VENTOY_UNIX_MAX_SEGNUM];
+    grub_uint32_t magic3[4];
+};
+#pragma pack()
+
+typedef struct ventoy_vlnk_part
+{
+    grub_uint32_t disksig;
+    grub_uint64_t partoffset;
+    char disk[64];
+    char device[64];
+    grub_device_t dev;
+    grub_fs_t fs;
+    int probe;
+    struct ventoy_vlnk_part *next;
+}ventoy_vlnk_part;
+
+
+typedef struct browser_mbuf
+{
+    int max;
+    int pos;
+    char *buf;
+}browser_mbuf;
+
+typedef struct browser_node
+{
+    int  dir;
+    char menuentry[1024];
+    char filename[512];
+    struct browser_node *prev;
+    struct browser_node *next;
+}browser_node;
+
+extern char *g_tree_script_buf;
+extern int g_tree_script_pos;
+extern int g_tree_script_pre;
+extern int g_tree_view_menu_style;
+extern int g_sort_case_sensitive;
+extern int g_wimboot_enable;
+extern int g_filt_dot_underscore_file;
+extern int g_vtoy_file_flt[VTOY_FILE_FLT_BUTT];
+extern const char *g_menu_class[img_type_max];
+extern char g_iso_path[256];
+int ventoy_add_vlnk_file(char *dir, const char *name);
+grub_err_t ventoy_cmd_browser_dir(grub_extcmd_context_t ctxt, int argc, char **args);
+grub_err_t ventoy_cmd_browser_disk(grub_extcmd_context_t ctxt, int argc, char **args);
+int ventoy_get_fs_type(const char *fs);
+int ventoy_img_name_valid(const char *filename, grub_size_t namelen);
+
 #endif /* __VENTOY_DEF_H__ */
 

GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_plugin.c

@@ -57,6 +57,7 @@ static auto_memdisk *g_auto_memdisk_head = NULL;
 static image_list *g_image_list_head = NULL;
 static conf_replace *g_conf_replace_head = NULL;
 
+static int g_theme_id = 0;
 static int g_theme_num = 0;
 static theme_list *g_theme_head = NULL;
 static int g_theme_random = vtoy_theme_random_boot_second;
@@ -170,11 +171,11 @@ static int ventoy_plugin_theme_check(VTOY_JSON *json, const char *isodisk)
         grub_printf("file: %s\n", value);
         if (value[0] == '/')
         {
-            exist = ventoy_is_file_exist("%s%s", isodisk, value);
+            exist = ventoy_check_file_exist("%s%s", isodisk, value);
         }
         else
         {
-            exist = ventoy_is_file_exist("%s/ventoy/%s", isodisk, value);
+            exist = ventoy_check_file_exist("%s/ventoy/%s", isodisk, value);
         }
         
         if (exist == 0)
@@ -194,11 +195,11 @@ static int ventoy_plugin_theme_check(VTOY_JSON *json, const char *isodisk)
                 grub_printf("file: %s\n", value);
                 if (value[0] == '/')
                 {
-                    exist = ventoy_is_file_exist("%s%s", isodisk, value);
+                    exist = ventoy_check_file_exist("%s%s", isodisk, value);
                 }
                 else
                 {
-                    exist = ventoy_is_file_exist("%s/ventoy/%s", isodisk, value);
+                    exist = ventoy_check_file_exist("%s/ventoy/%s", isodisk, value);
                 }
 
                 if (exist == 0)
@@ -281,6 +282,7 @@ static int ventoy_plugin_theme_check(VTOY_JSON *json, const char *isodisk)
 static int ventoy_plugin_theme_entry(VTOY_JSON *json, const char *isodisk)
 {
     const char *value;
+    char val[64];
     char filepath[256];
     VTOY_JSON *node = NULL;
     theme_list *tail = NULL;
@@ -366,6 +368,18 @@ static int ventoy_plugin_theme_entry(VTOY_JSON *json, const char *isodisk)
             }
         }
     }
+
+    grub_snprintf(val, sizeof(val), "%d", g_theme_num);
+    grub_env_set("VTOY_THEME_COUNT", val);
+    grub_env_export("VTOY_THEME_COUNT");
+    if (g_theme_num > 0)
+    {
+        vtoy_json_get_int(json->pstChild, "default_file", &g_theme_id);
+        if (g_theme_id > g_theme_num || g_theme_id < 0)
+        {
+            g_theme_id = 0;
+        }
+    }
     
     value = vtoy_json_get_string_ex(json->pstChild, "gfxmode");
     if (value)
@@ -449,7 +463,7 @@ static int ventoy_plugin_check_path(const char *path, const char *file)
         return 1;
     }
 
-    if (!ventoy_is_file_exist("%s%s", path, file))
+    if (!ventoy_check_file_exist("%s%s", path, file))
     {
         grub_printf("%s%s does NOT exist\n", path, file);
         return 1;
@@ -547,7 +561,7 @@ static int ventoy_plugin_parse_fullpath
     {
         debug("%s is string type data\n", node->pcName);
 
-        if ((node->unData.pcStrVal[0] != '/') || (!ventoy_is_file_exist("%s%s", isodisk, node->unData.pcStrVal)))
+        if ((node->unData.pcStrVal[0] != '/') || (!ventoy_check_file_exist("%s%s", isodisk, node->unData.pcStrVal)))
         {
             debug("%s%s file not found\n", isodisk, node->unData.pcStrVal);
             return 1;
@@ -582,7 +596,7 @@ static int ventoy_plugin_parse_fullpath
             
             for (count = 0, child = node->pstChild; child; child = child->pstNext)
             {
-                if (ventoy_is_file_exist("%s%s", isodisk, child->unData.pcStrVal))
+                if (ventoy_check_file_exist("%s%s", isodisk, child->unData.pcStrVal))
                 {
                     grub_snprintf(path->path, sizeof(path->path), "%s", child->unData.pcStrVal);
                     path++;
@@ -1387,7 +1401,7 @@ static int ventoy_plugin_menualias_check(VTOY_JSON *json, const char *isodisk)
                 {
                     grub_printf("image: <%s> [ * ]\n", path);
                 }
-                else if (ventoy_is_file_exist("%s%s", isodisk, path))
+                else if (ventoy_check_file_exist("%s%s", isodisk, path))
                 {
                     grub_printf("image: <%s> [ OK ]\n", path);
                 }
@@ -1528,7 +1542,7 @@ static int ventoy_plugin_menutip_check(VTOY_JSON *json, const char *isodisk)
                 {
                     grub_printf("image: <%s> [ * ]\n", path);
                 }
-                else if (ventoy_is_file_exist("%s%s", isodisk, path))
+                else if (ventoy_check_file_exist("%s%s", isodisk, path))
                 {
                     grub_printf("image: <%s> [ OK ]\n", path);
                 }
@@ -2670,6 +2684,8 @@ persistence_config * ventoy_plugin_find_persistent(const char *isopath)
 int ventoy_plugin_get_persistent_chunklist(const char *isopath, int index, ventoy_img_chunk_list *chunk_list)
 {
     int rc = 1;
+    int len = 0;
+    char *path = NULL;
     grub_uint64_t start = 0;
     grub_file_t file = NULL;
     persistence_config *node = NULL;
@@ -2690,10 +2706,22 @@ int ventoy_plugin_get_persistent_chunklist(const char *isopath, int index, vento
         return 1;
     }
 
-    file = ventoy_grub_file_open(VENTOY_FILE_TYPE, "%s%s", g_iso_disk_name, node->backendpath[index].path);
+    path = node->backendpath[index].path;
+
+    if (node->backendpath[index].vlnk_add == 0)
+    {
+        len = grub_strlen(path);
+        if (len > 9 && grub_strncmp(path + len - 9, ".vlnk.dat", 9) == 0)
+        {
+            ventoy_add_vlnk_file(NULL, path);
+            node->backendpath[index].vlnk_add = 1;
+        }
+    }
+    
+    file = ventoy_grub_file_open(VENTOY_FILE_TYPE, "%s%s", g_iso_disk_name, path);
     if (!file)
     {
-        debug("Failed to open file %s%s\n", g_iso_disk_name, node->backendpath[index].path);
+        debug("Failed to open file %s%s\n", g_iso_disk_name, path);
         goto end;
     }
 
@@ -3277,6 +3305,65 @@ end:
     return 0;
 }
 
+grub_err_t ventoy_cmd_select_theme_cfg(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    int pos = 0;
+    int bufsize = 0;
+    char *name = NULL;
+    char *buf = NULL;
+    theme_list *node = NULL;
+
+    (void)argc;
+    (void)args;
+    (void)ctxt;
+
+    if (g_theme_single_file[0])
+    {
+        return 0;
+    }
+
+    if (g_theme_num < 2)
+    {
+        return 0;
+    }
+
+    bufsize = (g_theme_num + 1) * 1024;
+    buf = grub_malloc(bufsize);
+    if (!buf)
+    {
+        return 0;
+    }
+    
+    for (node = g_theme_head; node; node = node->next)
+    {
+        name = grub_strstr(node->theme.path, ")/");
+        if (name)
+        {
+            name++;
+        }
+        else
+        {
+            name = node->theme.path;
+        }
+    
+        pos += grub_snprintf(buf + pos, bufsize - pos, 
+            "menuentry \"%s\" --class=debug_theme_item --class=debug_theme_select --class=F5tool {\n"
+                "vt_set_theme_path \"%s\"\n"
+            "}\n",
+            name, node->theme.path);
+    }
+
+    pos += grub_snprintf(buf + pos, bufsize - pos, 
+            "menuentry 'Return to previous menu [Esc]' --class=vtoyret VTOY_RET {\n"
+                "echo 'Return ...'\n"
+            "}\n");
+
+    grub_script_execute_sourcecode(buf);
+    grub_free(buf);
+    
+    return 0;
+}
+
 grub_err_t ventoy_cmd_set_theme(grub_extcmd_context_t ctxt, int argc, char **args)
 {
     grub_uint32_t i = 0;
@@ -3301,6 +3388,17 @@ grub_err_t ventoy_cmd_set_theme(grub_extcmd_context_t ctxt, int argc, char **arg
     {
         goto end;
     }
+    
+    if (g_theme_id > 0 && g_theme_id <= g_theme_num)
+    {
+        for (i = 0; i < (grub_uint32_t)(g_theme_id - 1) && node; i++)
+        {
+            node = node->next;
+        }
+
+        grub_env_set("theme", node->theme.path);
+        goto end;
+    }
 
     grub_memset(&datetime, 0, sizeof(datetime));
     grub_get_datetime(&datetime);
@@ -3332,7 +3430,25 @@ grub_err_t ventoy_cmd_set_theme(grub_extcmd_context_t ctxt, int argc, char **arg
     grub_env_set("theme", node->theme.path);
 
 end:
+
     VENTOY_CMD_RETURN(GRUB_ERR_NONE);
 }
 
+extern char g_ventoy_theme_path[256];
+grub_err_t ventoy_cmd_set_theme_path(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    (void)argc;
+    (void)ctxt;
+
+    if (argc == 0)
+    {
+        g_ventoy_theme_path[0] = 0;
+    }
+    else
+    {
+        grub_snprintf(g_ventoy_theme_path, sizeof(g_ventoy_theme_path), "%s", args[0]);
+    }
+
+    VENTOY_CMD_RETURN(GRUB_ERR_NONE);
+}
 

GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_unix.c

@@ -47,6 +47,12 @@ char *g_conf_new_data = NULL;
 int g_mod_new_len = 0;
 char *g_mod_new_data = NULL;
 
+int g_mod_search_magic = 0;
+int g_unix_vlnk_boot = 0;
+
+int g_ko_fillmap_len = 0;
+char *g_ko_fillmap_data = NULL;
+
 grub_uint64_t g_mod_override_offset = 0;
 grub_uint64_t g_conf_override_offset = 0;
 
@@ -82,6 +88,15 @@ static grub_uint32_t ventoy_unix_get_override_chunk_count(void)
     {
         count++;
     }
+    
+    if (g_ko_fillmap_len > 0)
+    {
+        count += (g_ko_fillmap_len / 512);
+        if ((g_ko_fillmap_len % 512) > 0)
+        {
+            count++;
+        }
+    }
 
     return count;
 }
@@ -121,15 +136,50 @@ static grub_uint32_t ventoy_unix_get_virt_chunk_size(void)
     return size;
 }
 
-static void ventoy_unix_fill_override_data(    grub_uint64_t isosize, void *override)
+static void ventoy_unix_fill_map_data(ventoy_chain_head *chain, struct g_ventoy_map *map)
 {
+    grub_uint32_t i;
+    ventoy_img_chunk *chunk = NULL;
+
+    debug("Fill unix map data: <%llu> <%u> %p\n", 
+        (unsigned long long)chain->os_param.vtoy_disk_size, g_img_chunk_list.cur_chunk, map);
+    
+    map->magic1[0] = map->magic2[0] = VENTOY_UNIX_SEG_MAGIC0;
+    map->magic1[1] = map->magic2[1] = VENTOY_UNIX_SEG_MAGIC1;
+    map->magic1[2] = map->magic2[2] = VENTOY_UNIX_SEG_MAGIC2;
+    map->magic1[3] = map->magic2[3] = VENTOY_UNIX_SEG_MAGIC3;
+
+    map->disksize = chain->os_param.vtoy_disk_size;
+    grub_memcpy(map->diskuuid, chain->os_param.vtoy_disk_guid, 16);
+
+    map->segnum = g_img_chunk_list.cur_chunk;
+    if (g_img_chunk_list.cur_chunk > VENTOY_UNIX_MAX_SEGNUM)
+    {
+        debug("####[FAIL] Too many segments for the ISO file %u\n", g_img_chunk_list.cur_chunk);
+        map->segnum = VENTOY_UNIX_MAX_SEGNUM;
+    }
+    
+    for (i = 0; i < (grub_uint32_t)(map->segnum); i++)
+    {
+        chunk = g_img_chunk_list.chunk + i;
+        map->seglist[i].seg_start_bytes = chunk->disk_start_sector * 512ULL;
+        map->seglist[i].seg_end_bytes = (chunk->disk_end_sector + 1) * 512ULL;        
+    }
+}
+
+static void ventoy_unix_fill_override_data(    grub_uint64_t isosize, ventoy_chain_head *chain)
+{
+    int i;
+    int left;
+    char *data = NULL;
+    grub_uint64_t offset;
     grub_uint64_t sector;
     ventoy_override_chunk *cur;
     ventoy_iso9660_override *dirent;
     
     sector = (isosize + 2047) / 2048;
 
-    cur = (ventoy_override_chunk *)override;
+    cur = (ventoy_override_chunk *)((char *)chain + chain->override_chunk_offset);
 
     if (g_conf_new_len > 0)
     {
@@ -142,12 +192,12 @@ static void ventoy_unix_fill_override_data(    grub_uint64_t isosize, void *over
         dirent->first_sector_be = grub_swap_bytes32(dirent->first_sector);
         dirent->size_be         = grub_swap_bytes32(dirent->size);
         sector += (dirent->size + 2047) / 2048;
+        cur++;
     }
 
     if (g_mod_new_len > 0)
     {
         /* mod.ko */
-        cur++;
         cur->img_offset = g_mod_override_offset;
         cur->override_size = sizeof(ventoy_iso9660_override);
         dirent = (ventoy_iso9660_override *)cur->override_data;
@@ -156,6 +206,37 @@ static void ventoy_unix_fill_override_data(    grub_uint64_t isosize, void *over
         dirent->first_sector_be = grub_swap_bytes32(dirent->first_sector);
         dirent->size_be         = grub_swap_bytes32(dirent->size);
         sector += (dirent->size + 2047) / 2048;
+        cur++;
+    }
+
+    if (g_ko_fillmap_len > 0)
+    {
+        data = g_ko_fillmap_data;
+        offset = g_mod_override_offset;
+
+        ventoy_unix_fill_map_data(chain, (struct g_ventoy_map *)data);
+        
+        for (i = 0; i < g_ko_fillmap_len / 512; i++)
+        {
+            cur->img_offset = offset;
+            cur->override_size = 512;
+            grub_memcpy(cur->override_data, data, 512);
+
+            offset += 512;
+            data += 512;
+            cur++;
+        }
+
+        left = (g_ko_fillmap_len % 512);
+        if (left > 0)
+        {
+            cur->img_offset = offset;
+            cur->override_size = left;
+            grub_memcpy(cur->override_data, data, left);
+
+            offset += left;
+            cur++;
+        }
     }
 
     return;
@@ -182,19 +263,25 @@ static void ventoy_unix_fill_virt_data(    grub_uint64_t isosize, ventoy_chain_h
 
     if (g_mod_new_len > 0)
     {
+        if (g_mod_search_magic > 0)
+        {
+            ventoy_unix_fill_map_data(chain, (struct g_ventoy_map *)(g_mod_new_data + g_mod_search_magic));
+        }
+    
         ventoy_unix_fill_virt(g_mod_new_data, g_mod_new_len);
     }
     
     return;
 }
 
-static int ventoy_freebsd_append_conf(char *buf, const char *isopath)
+static int ventoy_freebsd_append_conf(char *buf, const char *isopath, const char *alias)
 {
     int pos = 0;
     grub_uint32_t i;
     grub_disk_t disk;
     grub_file_t isofile;
     char uuid[64] = {0};
+    const char *val = NULL;
     ventoy_img_chunk *chunk;
     grub_uint8_t disk_sig[4];
     grub_uint8_t disk_guid[16];
@@ -209,7 +296,31 @@ static int ventoy_freebsd_append_conf(char *buf, const char *isopath)
 
     vtoy_ssprintf(buf, pos, "ventoy_load=\"%s\"\n", "YES");
     vtoy_ssprintf(buf, pos, "ventoy_name=\"%s\"\n", g_ko_mod_path);
+    
+    if (alias)
+    {
+        vtoy_ssprintf(buf, pos, "hint.ventoy.0.alias=\"%s\"\n", alias);
+    }
 
+    if (g_unix_vlnk_boot)
+    {
+        vtoy_ssprintf(buf, pos, "hint.ventoy.0.vlnk=%d\n", 1);
+    }
+
+    val = ventoy_get_env("VTOY_UNIX_REMOUNT");
+    if (val && val[0] == '1' && val[1] == 0)
+    {
+        vtoy_ssprintf(buf, pos, "hint.ventoy.0.remount=%d\n", 1);
+    }
+
+    if (g_mod_search_magic)
+    {
+        debug("hint.ventoy NO need\n");
+        goto out;
+    }
+
+    debug("Fill hint.ventoy info\n");
+    
     disk = isofile->device->disk;
 
     ventoy_get_disk_guid(isofile->name, disk_guid, disk_sig);
@@ -232,8 +343,8 @@ static int ventoy_freebsd_append_conf(char *buf, const char *isopath)
             (ulonglong)((chunk->disk_end_sector + 1) * 512));
     }
 
+out:
     grub_file_close(isofile);
-
     return pos;
 }
 
@@ -258,13 +369,38 @@ grub_err_t ventoy_cmd_unix_reset(grub_extcmd_context_t ctxt, int argc, char **ar
     (void)argc;
     (void)args;
     
+    g_unix_vlnk_boot = 0;
+    g_mod_search_magic = 0;
     g_conf_new_len = 0;
     g_mod_new_len = 0;
     g_mod_override_offset = 0;
     g_conf_override_offset = 0;
+    g_ko_fillmap_len = 0;
 
     check_free(g_mod_new_data, grub_free);
     check_free(g_conf_new_data, grub_free);
+    check_free(g_ko_fillmap_data, grub_free);
+
+    VENTOY_CMD_RETURN(GRUB_ERR_NONE);
+}
+
+grub_err_t ventoy_cmd_unix_check_vlnk(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    grub_file_t file;
+
+    (void)ctxt;
+
+    if (argc != 1)
+    {
+        return 1;
+    }
+
+    file = grub_file_open(args[0], VENTOY_FILE_TYPE);
+    if (file)
+    {
+        g_unix_vlnk_boot = file->vlnk;
+        grub_file_close(file);
+    }
 
     VENTOY_CMD_RETURN(GRUB_ERR_NONE);
 }
@@ -553,6 +689,109 @@ out:
     VENTOY_CMD_RETURN(GRUB_ERR_NONE);
 }
 
+grub_err_t ventoy_cmd_unix_replace_grub_conf(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    int len = 0;
+    grub_uint32_t i;
+    char *data;
+    char *pos;
+    const char *val = NULL;
+    grub_uint64_t offset;
+    grub_file_t file;
+    char extcfg[512];
+    const char *confile = NULL;
+    const char * loader_conf[] = 
+    {
+        "/boot/grub/grub.cfg",
+    };
+
+    (void)ctxt;
+
+    if (argc != 1 && argc != 2)
+    {
+        debug("Replace conf invalid argc %d\n", argc);
+        return 1;
+    }
+ 
+    for (i = 0; i < sizeof(loader_conf) / sizeof(loader_conf[0]); i++)
+    {
+        if (ventoy_get_file_override(loader_conf[i], &offset) == 0)
+        {
+            confile = loader_conf[i];
+            g_conf_override_offset = offset;
+            break;
+        }
+    }
+
+    if (confile == NULL)
+    {   
+        debug("Can't find grub.cfg file from %u locations\n", i);
+        return 1;
+    }
+
+    file = ventoy_grub_file_open(GRUB_FILE_TYPE_LINUX_INITRD, "(loop)/%s", confile);
+    if (!file)
+    {
+        debug("Failed to open %s \n", confile);
+        return 1;
+    }
+
+    debug("old grub2 conf file size:%d\n", (int)file->size);
+
+    data = grub_malloc(VTOY_MAX_SCRIPT_BUF);
+    if (!data)
+    {
+        grub_file_close(file);    
+        return 1;
+    }
+
+    grub_file_read(file, data, file->size);
+    grub_file_close(file);
+    
+    g_conf_new_data = data;
+    g_conf_new_len = (int)file->size;
+
+    pos = grub_strstr(data, "kfreebsd /boot/kernel/kernel");
+    if (pos)
+    {
+        pos += grub_strlen("kfreebsd /boot/kernel/kernel");
+        if (grub_strncmp(pos, ".gz", 3) == 0)
+        {
+            pos += 3;
+        }
+
+        if (argc == 2)
+        {
+            vtoy_ssprintf(extcfg, len, ";kfreebsd_module_elf %s; set kFreeBSD.hint.ventoy.0.alias=\"%s\"", args[0], args[1]);
+        }
+        else
+        {
+            vtoy_ssprintf(extcfg, len, ";kfreebsd_module_elf %s", args[0]);
+        }
+
+        if (g_unix_vlnk_boot)
+        {
+            vtoy_ssprintf(extcfg, len, ";set kFreeBSD.hint.ventoy.0.vlnk=%d", 1);
+        }
+
+        val = ventoy_get_env("VTOY_UNIX_REMOUNT");
+        if (val && val[0] == '1' && val[1] == 0)
+        {
+            vtoy_ssprintf(extcfg, len, ";set kFreeBSD.hint.ventoy.0.remount=%d", 1);
+        }
+        
+        grub_memmove(pos + len, pos, (int)(file->size - (pos - data)));
+        grub_memcpy(pos, extcfg, len);
+        g_conf_new_len += len;
+    }
+    else
+    {
+        debug("no kfreebsd found\n");
+    }
+    
+    VENTOY_CMD_RETURN(GRUB_ERR_NONE);
+}
+
 grub_err_t ventoy_cmd_unix_replace_conf(grub_extcmd_context_t ctxt, int argc, char **args)
 {
     grub_uint32_t i;
@@ -568,7 +807,7 @@ grub_err_t ventoy_cmd_unix_replace_conf(grub_extcmd_context_t ctxt, int argc, ch
 
     (void)ctxt;
 
-    if (argc != 2)
+    if (argc != 2 && argc != 3)
     {
         debug("Replace conf invalid argc %d\n", argc);
         return 1;
@@ -597,7 +836,7 @@ grub_err_t ventoy_cmd_unix_replace_conf(grub_extcmd_context_t ctxt, int argc, ch
         return 1;
     }
 
-    debug("old conf file size:%d\n", (int)file->size);
+    debug("old conf file <%s> size:%d\n", confile, (int)file->size);
 
     data = grub_malloc(VTOY_MAX_SCRIPT_BUF);
     if (!data)
@@ -614,7 +853,7 @@ grub_err_t ventoy_cmd_unix_replace_conf(grub_extcmd_context_t ctxt, int argc, ch
 
     if (grub_strcmp(args[0], "FreeBSD") == 0)
     {
-        g_conf_new_len += ventoy_freebsd_append_conf(data + file->size, args[1]);
+        g_conf_new_len += ventoy_freebsd_append_conf(data + file->size, args[1], (argc > 2) ? args[2] : NULL);
     }
     else if (grub_strcmp(args[0], "DragonFly") == 0)
     {
@@ -624,6 +863,27 @@ grub_err_t ventoy_cmd_unix_replace_conf(grub_extcmd_context_t ctxt, int argc, ch
     VENTOY_CMD_RETURN(GRUB_ERR_NONE);
 }
 
+static int ventoy_unix_search_magic(char *data, int len)
+{
+    int i;
+    grub_uint32_t *magic = NULL;    
+
+    for (i = 0; i < len; i += 4096)
+    {
+        magic = (grub_uint32_t *)(data + i);
+        if (magic[0] == VENTOY_UNIX_SEG_MAGIC0 && magic[1] == VENTOY_UNIX_SEG_MAGIC1 && 
+            magic[2] == VENTOY_UNIX_SEG_MAGIC2 && magic[3] == VENTOY_UNIX_SEG_MAGIC3)
+        {
+            debug("unix find search magic at 0x%x loop:%d\n", i, (i >> 12));
+            g_mod_search_magic = i;
+            return 0;
+        }
+    }
+
+    debug("unix can not find search magic\n");
+    return 1;
+}
+
 grub_err_t ventoy_cmd_unix_replace_ko(grub_extcmd_context_t ctxt, int argc, char **args)
 {
     char *data;
@@ -673,10 +933,73 @@ grub_err_t ventoy_cmd_unix_replace_ko(grub_extcmd_context_t ctxt, int argc, char
     
     g_mod_new_data = data;
     g_mod_new_len = (int)file->size;
+
+    ventoy_unix_search_magic(g_mod_new_data, g_mod_new_len);
     
     VENTOY_CMD_RETURN(GRUB_ERR_NONE);
 }
 
+grub_err_t ventoy_cmd_unix_ko_fillmap(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    int i;
+    grub_file_t file;
+    grub_uint32_t magic[4];
+    grub_uint32_t len;
+
+    (void)ctxt;
+
+    if (argc != 1)
+    {
+        debug("Fillmap ko invalid argc %d\n", argc);
+        return 1;
+    }
+
+    debug("Fillmap ko %s\n", args[0]);
+
+    file = ventoy_grub_file_open(VENTOY_FILE_TYPE, "(loop)%s", args[0]);
+    if (file)
+    {
+        grub_file_read(file, magic, 4); /* read for trigger */
+        g_mod_override_offset = grub_iso9660_get_last_read_pos(file);
+    }
+    else
+    {   
+        debug("Can't find replace ko file from %s\n", args[0]);
+        return 1;
+    }
+
+    for (i = 0; i < (int)(file->size); i += 65536)
+    {
+        magic[0] = 0;
+        grub_file_seek(file, i);
+        grub_file_read(file, magic, sizeof(magic));
+    
+        if (magic[0] == VENTOY_UNIX_SEG_MAGIC0 && magic[1] == VENTOY_UNIX_SEG_MAGIC1 && 
+            magic[2] == VENTOY_UNIX_SEG_MAGIC2 && magic[3] == VENTOY_UNIX_SEG_MAGIC3)
+        {
+            debug("unix find search magic at 0x%x loop:%d\n", i, (i >> 16));
+            g_mod_override_offset += i;
+            break;
+        }
+    }
+
+    len = (grub_uint32_t)OFFSET_OF(struct g_ventoy_map, seglist) + 
+        (sizeof(struct g_ventoy_seg) * g_img_chunk_list.cur_chunk);
+
+    g_ko_fillmap_len = (int)len;
+    g_ko_fillmap_data = grub_malloc(len);
+    if (!g_ko_fillmap_data)
+    {
+        g_ko_fillmap_len = 0;
+        debug("Failed to malloc fillmap data\n");
+    }
+
+    debug("Fillmap ko segnum:%u, override len:%u data:%p\n", g_img_chunk_list.cur_chunk, len, g_ko_fillmap_data);
+
+    grub_file_close(file);
+    VENTOY_CMD_RETURN(GRUB_ERR_NONE);
+}
+
 grub_err_t ventoy_cmd_unix_fill_image_desc(grub_extcmd_context_t ctxt, int argc, char **args)
 {
     int i;
@@ -908,7 +1231,7 @@ grub_err_t ventoy_cmd_unix_chain_data(grub_extcmd_context_t ctxt, int argc, char
     /* part 4: override chunk */
     chain->override_chunk_offset = chain->img_chunk_offset + img_chunk_size;
     chain->override_chunk_num = override_count;
-    ventoy_unix_fill_override_data(isosize, (char *)chain + chain->override_chunk_offset);
+    ventoy_unix_fill_override_data(isosize, chain);
 
     /* part 5: virt chunk */
     chain->virt_chunk_offset = chain->override_chunk_offset + override_size;

GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_vhd.c

@@ -667,6 +667,11 @@ grub_err_t ventoy_cmd_raw_chain_data(grub_extcmd_context_t ctxt, int argc, char
         return 1;
     }
 
+    if (grub_strncmp(args[0], g_iso_path, grub_strlen(g_iso_path)))
+    {
+        file->vlnk = 1;
+    }
+
     img_chunk_size = g_img_chunk_list.cur_chunk * sizeof(ventoy_img_chunk);
     
     size = sizeof(ventoy_chain_head) + img_chunk_size;

GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_windows.c

@@ -1994,21 +1994,12 @@ static grub_uint32_t ventoy_get_wim_iso_offset(const char *filepath)
     return imgoffset;
 }
 
-static int ventoy_get_wim_chunklist(const char *filename, ventoy_img_chunk_list *wimchunk, grub_uint64_t *wimsize)
+static int ventoy_get_wim_chunklist(grub_file_t wimfile, ventoy_img_chunk_list *wimchunk)
 {
-    grub_file_t wimfile;
-    
-    wimfile = ventoy_grub_file_open(VENTOY_FILE_TYPE, "%s", filename);
-    if (!wimfile)
-    {
-        return 1;
-    }
-
     grub_memset(wimchunk, 0, sizeof(ventoy_img_chunk_list));
     wimchunk->chunk = grub_malloc(sizeof(ventoy_img_chunk) * DEFAULT_CHUNK_NUM);
     if (NULL == wimchunk->chunk)
     {
-        grub_file_close(wimfile);
         return grub_error(GRUB_ERR_OUT_OF_MEMORY, "Can't allocate image chunk memoty\n");
     }
     
@@ -2017,9 +2008,6 @@ static int ventoy_get_wim_chunklist(const char *filename, ventoy_img_chunk_list
     
     ventoy_get_block_list(wimfile, wimchunk, wimfile->device->disk->partition->start);
 
-    *wimsize = wimfile->size;
-    grub_file_close(wimfile);
-
     return 0;
 }
 
@@ -2058,7 +2046,7 @@ grub_err_t ventoy_cmd_wim_check_bootable(grub_extcmd_context_t ctxt, int argc, c
     VENTOY_CMD_RETURN(GRUB_ERR_NONE);
 }
 
-grub_err_t ventoy_cmd_wim_chain_data(grub_extcmd_context_t ctxt, int argc, char **args)
+static grub_err_t ventoy_vlnk_wim_chain_data(grub_file_t wimfile)
 {
     grub_uint32_t i = 0;
     grub_uint32_t imgoffset = 0;
@@ -2079,10 +2067,7 @@ grub_err_t ventoy_cmd_wim_chain_data(grub_extcmd_context_t ctxt, int argc, char
     ventoy_img_chunk_list wimchunk;
     char envbuf[128];
     
-    (void)ctxt;
-    (void)argc;
-
-    debug("wim chain data begin <%s> ...\n", args[0]);
+    debug("vlnk wim chain data begin <%s> ...\n", wimfile->name);
 
     if (NULL == g_wimiso_chunk_list.chunk || NULL == g_wimiso_path)
     {
@@ -2097,11 +2082,177 @@ grub_err_t ventoy_cmd_wim_chain_data(grub_extcmd_context_t ctxt, int argc, char
         return 1;
     }
 
-    if (0 != ventoy_get_wim_chunklist(args[0], &wimchunk, &wimsize))
+    if (0 != ventoy_get_wim_chunklist(wimfile, &wimchunk))
     {
         grub_printf("Failed to get wim chunklist\n");
         return 1;
     }
+    wimsize = wimfile->size;
+
+    file = ventoy_grub_file_open(VENTOY_FILE_TYPE, "%s", g_wimiso_path);
+    if (!file)
+    {
+        return 1;
+    }
+
+    boot_catlog = ventoy_get_iso_boot_catlog(file);
+
+    img_chunk1_size = g_wimiso_chunk_list.cur_chunk * sizeof(ventoy_img_chunk);
+    img_chunk2_size = wimchunk.cur_chunk * sizeof(ventoy_img_chunk);
+    override_size = sizeof(ventoy_override_chunk) + g_wimiso_size;
+
+    size = sizeof(ventoy_chain_head) + img_chunk1_size + img_chunk2_size + override_size;
+
+    pLastChain = grub_env_get("vtoy_chain_mem_addr");
+    if (pLastChain)
+    {
+        chain = (ventoy_chain_head *)grub_strtoul(pLastChain, NULL, 16);
+        if (chain)
+        {
+            debug("free last chain memory %p\n", chain);
+            grub_free(chain);
+        }
+    }
+
+    chain = grub_malloc(size);
+    if (!chain)
+    {
+        grub_printf("Failed to alloc chain memory size %u\n", size);
+        grub_file_close(file);
+        return 1;
+    }
+
+    grub_snprintf(envbuf, sizeof(envbuf), "0x%lx", (unsigned long)chain);
+    grub_env_set("vtoy_chain_mem_addr", envbuf);
+    grub_snprintf(envbuf, sizeof(envbuf), "%u", size);
+    grub_env_set("vtoy_chain_mem_size", envbuf);
+
+    grub_memset(chain, 0, sizeof(ventoy_chain_head));
+
+    /* part 1: os parameter */
+    g_ventoy_chain_type = ventoy_chain_wim;
+    ventoy_fill_os_param(wimfile, &(chain->os_param));
+
+    /* part 2: chain head */
+    disk = wimfile->device->disk;
+    chain->disk_drive = disk->id;
+    chain->disk_sector_size = (1 << disk->log_sector_size);
+    chain->real_img_size_in_bytes = ventoy_align_2k(file->size) + ventoy_align_2k(wimsize);
+    chain->virt_img_size_in_bytes = chain->real_img_size_in_bytes;
+    chain->boot_catalog = boot_catlog;
+
+    if (!ventoy_is_efi_os())
+    {
+        grub_file_seek(file, boot_catlog * 2048);
+        grub_file_read(file, chain->boot_catalog_sector, sizeof(chain->boot_catalog_sector));
+    }
+
+    /* part 3: image chunk */
+    chain->img_chunk_offset = sizeof(ventoy_chain_head);
+    chain->img_chunk_num = g_wimiso_chunk_list.cur_chunk + wimchunk.cur_chunk;
+    grub_memcpy((char *)chain + chain->img_chunk_offset, g_wimiso_chunk_list.chunk, img_chunk1_size);
+
+    chunknode = (ventoy_img_chunk *)((char *)chain + chain->img_chunk_offset);
+    for (i = 0; i < g_wimiso_chunk_list.cur_chunk; i++)
+    {
+        chunknode->disk_end_sector = chunknode->disk_end_sector - chunknode->disk_start_sector;
+        chunknode->disk_start_sector = 0;
+        chunknode++;
+    }
+
+    /* fs cluster size >= 2048, so don't need to proc align */
+
+    /* align by 2048 */
+    chunknode = wimchunk.chunk + wimchunk.cur_chunk - 1;
+    i = (chunknode->disk_end_sector + 1 - chunknode->disk_start_sector) % 4;
+    if (i)
+    {
+        chunknode->disk_end_sector += 4 - i;
+    }
+
+    isosector = (grub_uint32_t)((file->size + 2047) / 2048);
+    for (i = 0; i < wimchunk.cur_chunk; i++)
+    {
+        chunknode = wimchunk.chunk + i;
+        chunknode->img_start_sector = isosector;
+        chunknode->img_end_sector = chunknode->img_start_sector + 
+            ((chunknode->disk_end_sector + 1 - chunknode->disk_start_sector) / 4) - 1;
+        isosector = chunknode->img_end_sector + 1;
+    }
+    
+    grub_memcpy((char *)chain + chain->img_chunk_offset + img_chunk1_size, wimchunk.chunk, img_chunk2_size);
+
+    /* part 4: override chunk */
+    chain->override_chunk_offset = chain->img_chunk_offset + img_chunk1_size + img_chunk2_size;
+    chain->override_chunk_num = 1;
+
+    override = (ventoy_override_chunk *)((char *)chain + chain->override_chunk_offset);
+    override->img_offset = 0;
+    override->override_size = g_wimiso_size;
+
+    grub_file_seek(file, 0);
+    grub_file_read(file, override->override_data, file->size);
+    
+    dirent = (ventoy_iso9660_override *)(override->override_data + imgoffset);
+    dirent->first_sector    = (grub_uint32_t)((file->size + 2047) / 2048);
+    dirent->size            = (grub_uint32_t)(wimsize);
+    dirent->first_sector_be = grub_swap_bytes32(dirent->first_sector);
+    dirent->size_be         = grub_swap_bytes32(dirent->size);
+
+    debug("imgoffset=%u first_sector=0x%x size=0x%x\n", imgoffset, dirent->first_sector, dirent->size);
+
+    if (ventoy_is_efi_os() == 0)
+    {
+        ventoy_windows_drive_map(chain);        
+    }
+
+    grub_file_close(file);
+
+    VENTOY_CMD_RETURN(GRUB_ERR_NONE);
+}
+
+static grub_err_t ventoy_normal_wim_chain_data(grub_file_t wimfile)
+{
+    grub_uint32_t i = 0;
+    grub_uint32_t imgoffset = 0;
+    grub_uint32_t size = 0;
+    grub_uint32_t isosector = 0;
+    grub_uint64_t wimsize = 0;
+    grub_uint32_t boot_catlog = 0;
+    grub_uint32_t img_chunk1_size = 0;
+    grub_uint32_t img_chunk2_size = 0;
+    grub_uint32_t override_size = 0;
+    grub_file_t file;
+    grub_disk_t disk;
+    const char *pLastChain = NULL;
+    ventoy_chain_head *chain;
+    ventoy_iso9660_override *dirent;
+    ventoy_img_chunk *chunknode;
+    ventoy_override_chunk *override;
+    ventoy_img_chunk_list wimchunk;
+    char envbuf[128];
+    
+    debug("normal wim chain data begin <%s> ...\n", wimfile->name);
+
+    if (NULL == g_wimiso_chunk_list.chunk || NULL == g_wimiso_path)
+    {
+        grub_printf("ventoy not ready\n");
+        return 1;
+    }
+
+    imgoffset = ventoy_get_wim_iso_offset(g_wimiso_path);
+    if (imgoffset == 0)
+    {
+        grub_printf("image offset not found\n");
+        return 1;
+    }
+
+    if (0 != ventoy_get_wim_chunklist(wimfile, &wimchunk))
+    {
+        grub_printf("Failed to get wim chunklist\n");
+        return 1;
+    }
+    wimsize = wimfile->size;
 
     file = ventoy_grub_file_open(VENTOY_FILE_TYPE, "%s", g_wimiso_path);
     if (!file)
@@ -2214,6 +2365,33 @@ grub_err_t ventoy_cmd_wim_chain_data(grub_extcmd_context_t ctxt, int argc, char
     VENTOY_CMD_RETURN(GRUB_ERR_NONE);
 }
 
+grub_err_t ventoy_cmd_wim_chain_data(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    grub_err_t ret;
+    grub_file_t wimfile;
+
+    (void)ctxt;
+    (void)argc;
+
+    wimfile = grub_file_open(args[0], VENTOY_FILE_TYPE);
+    if (!wimfile)
+    {
+        return 1;
+    }
+
+    if (wimfile->vlnk)
+    {
+        ret = ventoy_vlnk_wim_chain_data(wimfile);
+    }
+    else
+    {
+        ret = ventoy_normal_wim_chain_data(wimfile);
+    }
+
+    grub_file_close(wimfile);
+    return ret;
+}
+
 int ventoy_chain_file_size(const char *path)
 {
     int size;

GRUB2/MOD_SRC/grub-2.04/include/grub/file.h

@@ -132,7 +132,8 @@ enum grub_file_type
 
     /* --skip-sig is specified.  */
     GRUB_FILE_TYPE_SKIP_SIGNATURE = 0x10000,
-    GRUB_FILE_TYPE_NO_DECOMPRESS = 0x20000
+    GRUB_FILE_TYPE_NO_DECOMPRESS = 0x20000,
+    GRUB_FILE_TYPE_NO_VLNK = 0x40000,
   };
 
 /* File description.  */
@@ -141,6 +142,8 @@ struct grub_file
   /* File name.  */
   char *name;
 
+  int vlnk;
+
   /* The underlying device.  */
   grub_device_t device;
 
@@ -213,6 +216,11 @@ grub_ssize_t EXPORT_FUNC(grub_file_read) (grub_file_t file, void *buf,
 grub_off_t EXPORT_FUNC(grub_file_seek) (grub_file_t file, grub_off_t offset);
 grub_err_t EXPORT_FUNC(grub_file_close) (grub_file_t file);
 
+int EXPORT_FUNC(grub_file_is_vlnk_suffix)(const char *name, int len);
+int EXPORT_FUNC(grub_file_add_vlnk)(const char *src, const char *dst);
+int EXPORT_FUNC(grub_file_vtoy_vlnk)(const char *src, const char *dst);
+const char * EXPORT_FUNC(grub_file_get_vlnk)(const char *name, int *vlnk);
+
 /* Return value of grub_file_size() in case file size is unknown. */
 #define GRUB_FILE_SIZE_UNKNOWN	 0xffffffffffffffffULL
 

GRUB2/MOD_SRC/grub-2.04/include/grub/fs.h

@@ -128,5 +128,6 @@ grub_fs_unregister (grub_fs_t fs)
 #define FOR_FILESYSTEMS(var) FOR_LIST_ELEMENTS((var), (grub_fs_list))
 
 grub_fs_t EXPORT_FUNC(grub_fs_probe) (grub_device_t device);
+grub_fs_t EXPORT_FUNC(grub_fs_list_probe) (grub_device_t device, const char **list);
 
 #endif /* ! GRUB_FS_HEADER */

GRUB2/MOD_SRC/grub-2.04/include/grub/ventoy.h

@@ -121,6 +121,9 @@ typedef struct ventoy_os_param
      * vtoy_reserved[2]: vtoy_chain_type     0:Linux    1:Windows  2:wimfile
      * vtoy_reserved[3]: vtoy_iso_format     0:iso9660  1:udf
      * vtoy_reserved[4]: vtoy_windows_cd_prompt
+     * vtoy_reserved[5]: vtoy_linux_remount
+     * vtoy_reserved[6]: vtoy_vlnk
+     * vtoy_reserved[7~10]: vtoy_disk_sig[4] used for vlnk
      *
      */
     grub_uint8_t   vtoy_reserved[32];    // Internal use by ventoy
@@ -150,11 +153,23 @@ typedef struct ventoy_secure_data
     grub_uint8_t magic2[16];     /* VENTOY_GUID */
 }ventoy_secure_data;
 
+
+typedef struct ventoy_vlnk
+{
+    ventoy_guid   guid;         // VENTOY_GUID
+    grub_uint32_t crc32;        // crc32
+    grub_uint32_t disk_signature;
+    grub_uint64_t part_offset; // in bytes
+    char filepath[384];
+    grub_uint8_t reserved[96];
+}ventoy_vlnk;
+
 #pragma pack()
 
 // compile assert check : sizeof(ventoy_os_param) must be 512
 COMPILE_ASSERT(1,sizeof(ventoy_os_param) == 512);
 COMPILE_ASSERT(2,sizeof(ventoy_secure_data) == 4096);
+COMPILE_ASSERT(3,sizeof(ventoy_vlnk) == 512);
 
 
 

IMG/cpio/sbin/init

@@ -48,6 +48,12 @@ else
     fi
 fi
 
+if [ "$VTOY_ARCH" = "i386" ]; then
+    if $BUSYBOX_PATH/vtchmod32 -6; then
+        export VTOY_ARCH=x86_64
+    fi
+fi
+
 echo $VTOY_ARCH > $VTOY_PATH/ventoy_arch
 
 
@@ -81,6 +87,7 @@ export PATH=$BUSYBOX_PATH/:$VTOY_PATH/tool
 
 export VTOY_BREAK_LEVEL=$(hexdump -n 1 -s 449 -e '1/1 "%02x"' $VTOY_PATH/ventoy_os_param)
 export VTOY_DEBUG_LEVEL=$(hexdump -n 1 -s 450 -e '1/1 "%02x"' $VTOY_PATH/ventoy_os_param)
+export VTOY_LINUX_REMOUNT=$(hexdump -n 1 -s 454 -e '1/1 "%02x"' $VTOY_PATH/ventoy_os_param)
 
 #Fixme: busybox shell output redirect seems to have some bug in rhel5
 if uname -a | grep -q el5; then
@@ -108,6 +115,8 @@ fi
 
 if [ "$VTOY_ARCH" = "x86_64" ]; then
     echo "Use x86_64 busybox toolkit ..." >>$VTLOG
+    $BUSYBOX_PATH/xzcat $BUSYBOX_PATH/xzcat64_musl.xz > $BUSYBOX_PATH/xzcat_musl
+    $BUSYBOX_PATH/chmod +x $BUSYBOX_PATH/xzcat_musl
     ln -s $BUSYBOX_PATH/xzminidec64 $BUSYBOX_PATH/xzminidec
     ln -s $VTOY_PATH/tool/dmsetup64 $VTOY_PATH/tool/dmsetup
     ln -s $VTOY_PATH/tool/lunzip64 $VTOY_PATH/tool/lunzip
@@ -117,6 +126,8 @@ if [ "$VTOY_ARCH" = "x86_64" ]; then
     ln -s $VTOY_PATH/tool/zstdcat64 $VTOY_PATH/tool/zstdcat
 elif [ "$VTOY_ARCH" = "i386" ]; then
     echo "Use i386 busybox toolkit ..." >>$VTLOG
+    $BUSYBOX_PATH/xzcat $BUSYBOX_PATH/xzcat32_musl.xz > $BUSYBOX_PATH/xzcat_musl
+    $BUSYBOX_PATH/chmod +x $BUSYBOX_PATH/xzcat_musl
     ln -s $BUSYBOX_PATH/xzminidec32 $BUSYBOX_PATH/xzminidec
     ln -s $VTOY_PATH/tool/dmsetup32 $VTOY_PATH/tool/dmsetup
     ln -s $VTOY_PATH/tool/lunzip32 $VTOY_PATH/tool/lunzip

IMG/cpio/ventoy/hook/arch/ventoy-disk.sh

@@ -49,7 +49,12 @@ done
 
 if [ -n "$1" ]; then
     vtlog "ln -s /dev/$vtDM $1"
-    ln -s /dev/$vtDM "$1"
+    
+    if [ -e "$1" ]; then
+        vtlog "$1 already exist"
+    else
+        ln -s /dev/$vtDM "$1"
+    fi
 else
     vtLABEL=$($BUSYBOX_PATH/blkid /dev/$vtDM | $SED 's/.*LABEL="\([^"]*\)".*/\1/')
     vtlog "vtLABEL is $vtLABEL"
@@ -59,7 +64,11 @@ else
         vtlog "vtLABEL is $vtLABEL from cmdline"
     fi
     
-    ln -s /dev/$vtDM "/dev/disk/by-label/$vtLABEL"
+    if [ -e "/dev/disk/by-label/$vtLABEL" ]; then
+        vtlog "$1 already exist"
+    else
+        ln -s /dev/$vtDM "/dev/disk/by-label/$vtLABEL"
+    fi
 fi 
 
 # OK finish

IMG/cpio/ventoy/hook/crux/disk_hook.sh

@@ -29,13 +29,21 @@ for i in 0 1 2 3 4 5 6 7 8 9; do
     fi
 done
 
-ventoy_extract_vtloopex ${vtdiskname}2  crux
+# no need since 3.6.1
+$BUSYBOX_PATH/modprobe dax      > /dev/null 2>&1
+$BUSYBOX_PATH/modprobe dm-mod   > /dev/null 2>&1
 
+if $GREP -q 'device-mapper' /proc/devices; then
+    vtlog "dm-mod module check success ..."
+else
+    vtlog "Need to load dm-mod module ..."
+    ventoy_extract_vtloopex ${vtdiskname}2  crux
 
-vtKver=$(uname -r)
-vtLoopExDir=$VTOY_PATH/vtloopex/crux/vtloopex
+    vtKver=$(uname -r)
+    vtLoopExDir=$VTOY_PATH/vtloopex/crux/vtloopex
 
-ventoy_check_install_module_xz $vtLoopExDir/dm-mod/$vtKver/64/dax.ko
-ventoy_check_install_module_xz $vtLoopExDir/dm-mod/$vtKver/64/dm-mod.ko
+    ventoy_check_install_module_xz $vtLoopExDir/dm-mod/$vtKver/64/dax.ko
+    ventoy_check_install_module_xz $vtLoopExDir/dm-mod/$vtKver/64/dm-mod.ko
+fi
 
 ventoy_udev_disk_common_hook "${vtdiskname#/dev/}2"

IMG/cpio/ventoy/hook/debian/default-hook.sh

@@ -54,8 +54,15 @@ fi
 if [ -f $VTOY_PATH/autoinstall ]; then
     echo "Do auto install ..." >> $VTLOG
     
-    if $GREP -q "^mount /proc$" /init; then
-        $SED "/^mount \/proc/a export file=$VTOY_PATH/autoinstall; export auto='true'; export priority='critical'"  -i /init
+    if $GREP -q '^autoinstall:' $VTOY_PATH/autoinstall; then
+        echo "cloud-init auto install ..." >> $VTLOG
+        if $GREP -q "maybe_break init" /init; then
+            $SED "/maybe_break init/i $BUSYBOX_PATH/sh $VTOY_PATH/hook/debian/ventoy-cloud-init.sh \$rootmnt"  -i /init
+        fi
+    else
+        if $GREP -q "^mount /proc$" /init; then
+            $SED "/^mount \/proc/a export file=$VTOY_PATH/autoinstall; export auto='true'; export priority='critical'"  -i /init
+        fi
     fi
 fi
 

IMG/cpio/ventoy/hook/debian/minios-disk.sh

@@ -0,0 +1,82 @@
+#!/ventoy/busybox/sh
+#************************************************************************************
+# Copyright (c) 2020, longpanda <admin@ventoy.net>
+# 
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 3 of the
+# License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# 
+#************************************************************************************
+
+. /ventoy/hook/ventoy-hook-lib.sh
+
+vtlog "####### $0 $* ########"
+
+VTPATH_OLD=$PATH; PATH=$BUSYBOX_PATH:$VTOY_PATH/tool:$PATH
+
+
+ventoy_os_install_dmsetup_by_fuse() {
+    vtlog "ventoy_os_install_dmsetup_by_fuse $*"
+
+    mkdir -p $VTOY_PATH/mnt/fuse $VTOY_PATH/mnt/iso $VTOY_PATH/mnt/squashfs
+
+    vtoydm -p -f $VTOY_PATH/ventoy_image_map -d $1 > $VTOY_PATH/ventoy_dm_table
+    vtoy_fuse_iso -f $VTOY_PATH/ventoy_dm_table -m $VTOY_PATH/mnt/fuse
+
+    mount -t iso9660  $VTOY_PATH/mnt/fuse/ventoy.iso    $VTOY_PATH/mnt/iso
+    mount -t squashfs $VTOY_PATH/mnt/iso/minios/01-core*.sb  $VTOY_PATH/mnt/squashfs
+
+    KoName=$(ls $VTOY_PATH/mnt/squashfs/lib/modules/$2/kernel/drivers/md/dm-mod.ko*)
+    vtlog "insmod $KoName"
+    insmod $KoName
+
+    umount $VTOY_PATH/mnt/squashfs
+    umount $VTOY_PATH/mnt/iso
+    umount $VTOY_PATH/mnt/fuse
+}
+
+
+ventoy_os_install_dmsetup() {
+    vtlog "ventoy_os_install_dmsetup"
+    
+    if grep -q 'device-mapper' /proc/devices; then
+        vtlog "device-mapper module already loaded"
+        return;
+    fi
+    
+    vtKerVer=$(uname -r)
+    
+    if modprobe fuse 2>>$VTLOG; then
+        ventoy_os_install_dmsetup_by_fuse $1 $vtKerVer
+    fi
+}
+
+vtdiskname=$(get_ventoy_disk_name)
+if [ "$vtdiskname" = "unknown" ]; then
+    vtlog "ventoy disk not found"
+    PATH=$VTPATH_OLD
+    exit 0
+fi
+
+if check_usb_disk_ready "$vtdiskname"; then
+    vtlog "check_usb_disk_ready ok"
+else
+    vtlog "check_usb_disk_ready error"
+    PATH=$VTPATH_OLD
+    exit 0
+fi
+
+ventoy_os_install_dmsetup $vtdiskname
+
+ventoy_udev_disk_common_hook "${vtdiskname#/dev/}2" "noreplace"
+
+PATH=$VTPATH_OLD

IMG/cpio/ventoy/hook/debian/minios-hook.sh

@@ -0,0 +1,24 @@
+#!/ventoy/busybox/sh
+#************************************************************************************
+# Copyright (c) 2020, longpanda <admin@ventoy.net>
+# 
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 3 of the
+# License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# 
+#************************************************************************************
+
+if [ -f /lib/livekitlib ] && $GREP -q 'debug_log.*find_data_try' /lib/livekitlib; then
+    $SED "/debug_log.*find_data_try/a\ $BUSYBOX_PATH/sh $VTOY_PATH/hook/debian/minios-disk.sh"  -i /lib/livekitlib
+else
+    $SED "/find_data/i\ $BUSYBOX_PATH/sh $VTOY_PATH/hook/debian/minios-disk.sh"  -i /init
+fi

IMG/cpio/ventoy/hook/debian/ventoy-cloud-init.sh

@@ -0,0 +1,63 @@
+#!/ventoy/busybox/sh
+#************************************************************************************
+# Copyright (c) 2020, longpanda <admin@ventoy.net>
+# 
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 3 of the
+# License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# 
+#************************************************************************************
+
+. /ventoy/hook/ventoy-hook-lib.sh
+
+vtlog "####### $0 $* ########"
+
+VTPATH_OLD=$PATH; PATH=$BUSYBOX_PATH:$VTOY_PATH/tool:$PATH
+
+newroot=$1
+
+dd if=/dev/zero of=$newroot/tmp/cidata.img bs=1M count=8 status=none
+freeloop=$(losetup -f)
+
+losetup $freeloop $newroot/tmp/cidata.img
+
+mkfs.vfat -n CIDATA $freeloop
+
+mkdir /tmpcidata
+mount $newroot/tmp/cidata.img /tmpcidata
+
+vtSplit=$(grep VENTOY_META_DATA_SPLIT $VTOY_PATH/autoinstall | wc -l)
+if [ $vtSplit -eq 1 ]; then
+    vtlog "split autoinstall script to user-data and meta-data"
+    vtLine=$(grep -n VENTOY_META_DATA_SPLIT $VTOY_PATH/autoinstall | awk -F: '{print $1}')
+    vtLine1=$(expr $vtLine - 1)
+    vtLine2=$(expr $vtLine + 1)
+    vtlog "Line number: $vtLine $vtLine1 $vtLine2"
+    sed -n "1,${vtLine1}p"  $VTOY_PATH/autoinstall >/tmpcidata/user-data
+    sed -n "${vtLine2},\$p" $VTOY_PATH/autoinstall >/tmpcidata/meta-data
+else
+    vtlog "only user-data avaliable"
+    cp -a $VTOY_PATH/autoinstall  /tmpcidata/user-data
+    touch /tmpcidata/meta-data
+fi
+
+
+umount /tmpcidata
+rm -rf /tmpcidata
+
+vtCMD=$(cat /proc/cmdline)
+echo "autoinstall $vtCMD" > $newroot/tmp/kcmdline
+mount --bind $newroot/tmp/kcmdline  /proc/cmdline
+
+
+PATH=$VTPATH_OLD
+

IMG/cpio/ventoy/hook/debian/ventoy-hook.sh

@@ -56,6 +56,10 @@ ventoy_get_debian_distro() {
         echo 'slax'; return
     fi
     
+    if $GREP -q 'minios/' /proc/cmdline; then
+        echo 'minios'; return
+    fi
+    
     if $GREP -q 'PVE ' /proc/version; then
         echo 'pve'; return
     fi

IMG/cpio/ventoy/hook/rhel7/ventoy-hook.sh

@@ -92,7 +92,8 @@ if [ -f /etc/system-release ]; then
         vtNeedRepo="yes"
     fi
 fi
-if $GREP -q el8 /proc/version; then
+
+if $GREP -q 'el[89]' /proc/version; then
     vtNeedRepo="yes"
 fi
 
@@ -102,6 +103,8 @@ if $GREP -i -q Fedora /proc/version; then
     fi
 fi
 
+echo "vtNeedRepo=$vtNeedRepo" >> $VTLOG
+
 if [ "$vtNeedRepo" = "yes" ]; then
     $BUSYBOX_PATH/cp -a $VTOY_PATH/hook/rhel7/ventoy-repo.sh /lib/dracut/hooks/pre-pivot/99-ventoy-repo.sh
 fi

IMG/cpio/ventoy/hook/ventoy-hook-lib.sh

@@ -30,6 +30,8 @@ SLEEP=$BUSYBOX_PATH/sleep
 HEAD=$BUSYBOX_PATH/head
 VTOY_DM_PATH=/dev/mapper/ventoy
 VTOY_DEBUG_LEVEL=$($BUSYBOX_PATH/hexdump -n 1 -s 450 -e '1/1 "%02x"' $VTOY_PATH/ventoy_os_param)
+VTOY_LINUX_REMOUNT=$($BUSYBOX_PATH/hexdump -n 1 -s 454 -e '1/1 "%02x"' $VTOY_PATH/ventoy_os_param)
+VTOY_VLNK_BOOT=$($BUSYBOX_PATH/hexdump -n 1 -s 455 -e '1/1 "%02x"' $VTOY_PATH/ventoy_os_param)
 
 if [ "$VTOY_DEBUG_LEVEL" = "01" ]; then
     if [ -e /dev/console ]; then
@@ -64,12 +66,16 @@ set_ventoy_hook_finish() {
     echo 'Y' > $VTOY_PATH/hook_finish
 }
 
-get_ventoy_disk_name() {    
-    line=$($VTOY_PATH/tool/vtoydump -f /ventoy/ventoy_os_param)
-    if [ $? -eq 0 ]; then
-        echo ${line%%#*}
-    else    
-        echo "unknown"
+get_ventoy_disk_name() {
+    if [ "$VTOY_VLNK_BOOT" = "01" ]; then
+        $VTOY_PATH/tool/vtoydump -t /ventoy/ventoy_os_param
+    else
+        line=$($VTOY_PATH/tool/vtoydump -f /ventoy/ventoy_os_param)
+        if [ $? -eq 0 ]; then
+            echo ${line%%#*}
+        else    
+            echo "unknown"
+        fi
     fi
 }
 
@@ -120,14 +126,6 @@ check_usb_disk_ready() {
     [ -e "${vtpart2}" ]
 }
 
-is_ventoy_disk() {
-    if $VTOY_PATH/tool/vtoydump -f $VTOY_PATH/ventoy_os_param -c "$1"; then
-        $BUSYBOX_PATH/true
-    else
-        $BUSYBOX_PATH/false
-    fi
-}
-
 not_ventoy_disk() {
     if echo $1 | $EGREP -q "nvme.*p$|mmc.*p$|nbd.*p$"; then
         vtDiskName=${1:0:-1}
@@ -135,10 +133,15 @@ not_ventoy_disk() {
         vtDiskName=$1
     fi
 
-    if $VTOY_PATH/tool/vtoydump -f $VTOY_PATH/ventoy_os_param -c "$vtDiskName"; then
-        $BUSYBOX_PATH/false
+    if [ "$VTOY_VLNK_BOOT" = "01" ]; then
+        vtVtoyDisk=$($VTOY_PATH/tool/vtoydump -t $VTOY_PATH/ventoy_os_param)
+        [ "$vtVtoyDisk" != "/dev/$vtDiskName" ]
     else
-        $BUSYBOX_PATH/true
+        if $VTOY_PATH/tool/vtoydump -f $VTOY_PATH/ventoy_os_param -c "$vtDiskName"; then
+            $BUSYBOX_PATH/false
+        else
+            $BUSYBOX_PATH/true
+        fi
     fi
 }
 
@@ -220,6 +223,143 @@ ventoy_check_dm_module() {
     fi
 }
 
+ventoy_need_dm_patch() {
+    if [ "$VTOY_LINUX_REMOUNT" != "01" ]; then
+        $BUSYBOX_PATH/false; return
+    fi
+
+    if $GREP -q 'device-mapper' /proc/devices; then
+        :
+    else
+        $BUSYBOX_PATH/false; return
+    fi
+    
+    if $GREP -q 'dm_patch' /proc/modules; then
+        $BUSYBOX_PATH/false; return
+    fi
+    
+    vtMajorVer=$($BUSYBOX_PATH/uname -r | $AWK -F. '{print $1}')
+    vtMinorVer=$($BUSYBOX_PATH/uname -r | $AWK -F. '{print $2}')
+
+    if [ $vtMajorVer -lt 3 ]; then
+        $BUSYBOX_PATH/false; return
+    elif [ $vtMajorVer -eq 3 -a $vtMinorVer -lt 10 ]; then
+        $BUSYBOX_PATH/false; return
+    fi
+    
+    
+    $BUSYBOX_PATH/true
+}
+
+ventoy_dm_patch() {
+    vtMType=$($BUSYBOX_PATH/uname -m)
+
+    vtlog "######### ventoy_dm_patch ############"
+
+    if echo $vtMType | $EGREP -i -q "x86.64|amd64"; then
+        vtKoName=dm_patch_64.ko
+    elif echo $vtMType | $EGREP -i -q "i[3-6]86"; then
+        vtKoName=dm_patch_32.ko
+    else
+        vtlog "unsupported machine type $vtMType"
+        return
+    fi
+
+    if [ -f $VTOY_PATH/tool/$vtKoName ]; then
+        vtlog "/ventoy/tool/$vtKoName exist OK"
+    else
+        vtlog "/ventoy/tool/$vtKoName NOT exist"
+        return
+    fi
+    
+    $CAT /proc/kallsyms | $BUSYBOX_PATH/sort > $VTOY_PATH/kallsyms
+    
+    vtLine=$($VTOY_PATH/tool/vtoyksym dm_get_table_device $VTOY_PATH/kallsyms)
+    get_addr=$(echo $vtLine | $AWK '{print $1}')
+    get_size=$(echo $vtLine | $AWK '{print $2}')
+
+    vtLine=$($VTOY_PATH/tool/vtoyksym dm_put_table_device $VTOY_PATH/kallsyms)
+    put_addr=$(echo $vtLine | $AWK '{print $1}')
+    put_size=$(echo $vtLine | $AWK '{print $2}')
+    
+    ro_addr=$($GREP ' set_memory_ro$' /proc/kallsyms | $AWK '{print $1}')
+    rw_addr=$($GREP ' set_memory_rw$' /proc/kallsyms | $AWK '{print $1}')
+    kprobe_reg_addr=$($GREP ' register_kprobe$' /proc/kallsyms | $AWK '{print $1}')
+    kprobe_unreg_addr=$($GREP ' unregister_kprobe$' /proc/kallsyms | $AWK '{print $1}')
+    
+    if [ "$VTOY_DEBUG_LEVEL" = "01" ]; then
+        printk_addr=$($GREP ' printk$' /proc/kallsyms | $AWK '{print $1}')
+        vtDebug="-v"
+    else
+        printk_addr=0
+    fi
+    
+    #printk_addr=$($GREP ' printk$' /proc/kallsyms | $AWK '{print $1}')
+    #vtDebug="-v"
+    
+    vtlog get_addr=$get_addr  get_size=$get_size
+    vtlog put_addr=$put_addr  put_size=$put_size
+    vtlog kprobe_reg_addr=$kprobe_reg_addr  kprobe_unreg_addr=$kprobe_unreg_addr
+    vtlog ro_addr=$ro_addr  rw_addr=$rw_addr  printk_addr=$printk_addr
+
+    if [ "$get_addr" = "0" -o "$put_addr" = "0" ]; then
+        vtlog "Invalid symbol address"
+        return
+    fi
+    if [ "$ro_addr" = "0" -o "$rw_addr" = "0" ]; then
+        vtlog "Invalid symbol address"
+        return
+    fi
+
+
+    vtKv=$($BUSYBOX_PATH/uname -r)
+    
+    if [ ! -d /lib/modules/$vtKv ]; then
+        vtlog "No modules directory found"
+        return
+    elif [ -d /lib/modules/$vtKv/kernel/fs ]; then
+        vtModPath=$($FIND /lib/modules/$vtKv/kernel/fs/ -name "*.ko*" | $HEAD -n1)
+    else
+        vtModPath=$($FIND /lib/modules/$vtKv/kernel/ -name "xfs.ko*" | $HEAD -n1)
+    fi
+    
+    if [ -z "$vtModPath" ]; then
+        vtModPath=$($FIND /lib/modules/$vtKv/kernel/ -name "*.ko*" | $HEAD -n1)
+    fi
+    
+    vtModName=$($BUSYBOX_PATH/basename $vtModPath)
+    
+    vtlog "template module is $vtModPath $vtModName"
+    
+    if [ -z "$vtModPath" ]; then
+        vtlog "No template module found"
+        return
+    elif echo $vtModPath | $GREP -q "[.]ko$"; then
+        $BUSYBOX_PATH/cp -a $vtModPath  $VTOY_PATH/$vtModName
+    elif echo $vtModPath | $GREP -q "[.]ko[.]xz$"; then
+        $BUSYBOX_PATH/xzcat $vtModPath > $VTOY_PATH/$vtModName
+    elif echo $vtModPath | $GREP -q "[.]ko[.]gz$"; then
+        $BUSYBOX_PATH/zcat $vtModPath > $VTOY_PATH/$vtModName
+    else
+        vtlog "unsupport module type"
+        return
+    fi
+    
+    #step1: modify vermagic/mod crc/relocation
+    $VTOY_PATH/tool/vtoykmod -u $VTOY_PATH/tool/$vtKoName $VTOY_PATH/$vtModName $vtDebug
+    
+    #step2: fill parameters
+    vtPgsize=$($VTOY_PATH/tool/vtoyksym -p)
+    $VTOY_PATH/tool/vtoykmod -f $VTOY_PATH/tool/$vtKoName $vtPgsize 0x$printk_addr 0x$ro_addr 0x$rw_addr $get_addr $get_size $put_addr $put_size 0x$kprobe_reg_addr 0x$kprobe_unreg_addr $vtDebug
+
+    $BUSYBOX_PATH/insmod $VTOY_PATH/tool/$vtKoName
+    
+    if $GREP -q 'dm_patch' /proc/modules; then
+        echo "done" > $VTOY_PATH/dm_patch_done
+    fi
+    
+}
+
 create_ventoy_device_mapper() {
     vtlog "create_ventoy_device_mapper $*"
     
@@ -230,19 +370,36 @@ create_ventoy_device_mapper() {
     fi
     
     vtlog "dmsetup avaliable in system $VT_DM_BIN"
-        
+
     if ventoy_check_dm_module "$1"; then
         vtlog "device-mapper module check success"
     else
         vterr "Error: no dm module avaliable"
     fi
     
-    $VTOY_PATH/tool/vtoydm -p -f $VTOY_PATH/ventoy_image_map -d $1 > $VTOY_PATH/ventoy_dm_table        
+    $VTOY_PATH/tool/vtoydm -p -f $VTOY_PATH/ventoy_image_map -d $1 > $VTOY_PATH/ventoy_dm_table
+    
+    
+    vtLevel1=$($CAT /proc/sys/kernel/printk | $AWK '{print $1}')
+    vtLevel2=$($CAT /proc/sys/kernel/printk | $AWK '{print $2}')
+    vtLevel3=$($CAT /proc/sys/kernel/printk | $AWK '{print $3}')
+    vtLevel4=$($CAT /proc/sys/kernel/printk | $AWK '{print $4}')
+    if ventoy_need_dm_patch; then
+        ventoy_dm_patch
+        #suppress printk message
+        echo 0 $vtLevel2 0 $vtLevel4 > /proc/sys/kernel/printk
+    fi
+
     if [ -z "$2" ]; then
         $VT_DM_BIN create ventoy $VTOY_PATH/ventoy_dm_table >>$VTLOG 2>&1
     else
         $VT_DM_BIN "$2" create ventoy $VTOY_PATH/ventoy_dm_table >>$VTLOG 2>&1
-    fi    
+    fi
+
+    if ventoy_need_dm_patch; then    
+        #recover printk level
+        echo $vtLevel1 $vtLevel2 $vtLevel3 $vtLevel4 > /proc/sys/kernel/printk
+    fi
 }
 
 create_persistent_device_mapper() {
@@ -262,8 +419,24 @@ create_persistent_device_mapper() {
         vterr "Error: no dm module avaliable"
     fi
     
-    $VTOY_PATH/tool/vtoydm -p -f $VTOY_PATH/ventoy_persistent_map -d $1 > $VTOY_PATH/persistent_dm_table        
+    $VTOY_PATH/tool/vtoydm -p -f $VTOY_PATH/ventoy_persistent_map -d $1 > $VTOY_PATH/persistent_dm_table    
+
+
+    vtLevel1=$($CAT /proc/sys/kernel/printk | $AWK '{print $1}')
+    vtLevel2=$($CAT /proc/sys/kernel/printk | $AWK '{print $2}')
+    vtLevel3=$($CAT /proc/sys/kernel/printk | $AWK '{print $3}')
+    vtLevel4=$($CAT /proc/sys/kernel/printk | $AWK '{print $4}')
+    if [ -f $VTOY_PATH/dm_patch_done ]; then
+        #suppress printk message
+        echo 0 $vtLevel2 0 $vtLevel4 > /proc/sys/kernel/printk
+    fi
+    
     $VT_DM_BIN create vtoy_persistent $VTOY_PATH/persistent_dm_table >>$VTLOG 2>&1
+    
+    if [ -f $VTOY_PATH/dm_patch_done ]; then
+        #recover printk level
+        echo $vtLevel1 $vtLevel2 $vtLevel3 $vtLevel4 > /proc/sys/kernel/printk
+    fi
 }
 
 
@@ -493,6 +666,22 @@ ventoy_create_persistent_link() {
     fi    
 }
 
+ventoy_partname_to_diskname() {
+    if echo $1 | $EGREP -q "nvme.*p[0-9]$|mmc.*p[0-9]$|nbd.*p[0-9]$"; then
+        echo -n "${1:0:-2}"    
+    else
+        echo -n "${1:0:-1}"
+    fi
+}
+
+ventoy_diskname_to_partname() {
+    if echo $1 | $EGREP -q "nvme.*p[0-9]$|mmc.*p[0-9]$|nbd.*p[0-9]$"; then
+        echo -n "${1}p$2"
+    else
+        echo -n "${1}$2"
+    fi
+}
+
 ventoy_udev_disk_common_hook() {    
     if echo $1 | $EGREP -q "nvme.*p[0-9]$|mmc.*p[0-9]$|nbd.*p[0-9]$"; then
         VTDISK="${1:0:-2}"    
@@ -541,6 +730,10 @@ ventoy_udev_disk_common_hook() {
         create_persistent_device_mapper "/dev/$VTDISK"
         ventoy_create_persistent_link
     fi
+    
+    if $GREP -q 'dm_patch' /proc/modules; then
+        $BUSYBOX_PATH/rmmod dm_patch
+    fi
 }
 
 ventoy_create_dev_ventoy_part() {   
@@ -550,6 +743,15 @@ ventoy_create_dev_ventoy_part() {
     if [ -e /vtoy_dm_table ]; then
         vtPartid=1
         
+        vtLevel1=$($CAT /proc/sys/kernel/printk | $AWK '{print $1}')
+        vtLevel2=$($CAT /proc/sys/kernel/printk | $AWK '{print $2}')
+        vtLevel3=$($CAT /proc/sys/kernel/printk | $AWK '{print $3}')
+        vtLevel4=$($CAT /proc/sys/kernel/printk | $AWK '{print $4}')
+        if [ -f $VTOY_PATH/dm_patch_done ]; then
+            #suppress printk message
+            echo 0 $vtLevel2 0 $vtLevel4 > /proc/sys/kernel/printk
+        fi
+        
         $CAT /vtoy_dm_table | while read vtline; do
             echo $vtline > /ventoy/dm_table_part${vtPartid}
             $VTOY_PATH/tool/dmsetup create ventoy${vtPartid} /ventoy/dm_table_part${vtPartid}
@@ -558,7 +760,12 @@ ventoy_create_dev_ventoy_part() {
             $BUSYBOX_PATH/mknod -m 0666 /dev/ventoy${vtPartid} b $blkdev_num
             
             vtPartid=$(expr $vtPartid + 1)
-        done        
+        done   
+
+        if [ -f $VTOY_PATH/dm_patch_done ]; then
+            #recover printk level
+            echo $vtLevel1 $vtLevel2 $vtLevel3 $vtLevel4 > /proc/sys/kernel/printk
+        fi
     fi
 }
 
@@ -598,7 +805,12 @@ is_inotify_ventoy_part() {
                 fi
                 
                 if [ -e /dev/$vtShortName ]; then
-                    $VTOY_PATH/tool/vtoydump -f $VTOY_PATH/ventoy_os_param -c $vtShortName
+                    if [ "$VTOY_VLNK_BOOT" = "01" ]; then
+                        vtOrgDiskName=$($VTOY_PATH/tool/vtoydump -t $VTOY_PATH/ventoy_os_param)
+                        [ "$vtOrgDiskName" = "/dev/$vtShortName" ]
+                    else
+                        $VTOY_PATH/tool/vtoydump -f $VTOY_PATH/ventoy_os_param -c $vtShortName
+                    fi
                     return
                 fi
             fi

IMG/cpio/ventoy/init_chain

@@ -77,12 +77,16 @@ ventoy_unpack_initramfs() {
                 if [ "${vtx:5}" = "xzcat" ]; then
                     rm -f $VTOY_PATH/xzlog
                     ${vtx:5} $vtfile 2> $VTOY_PATH/xzlog | (cpio -idmu 2>>$VTLOG; cat > $vttmp)
-                    
                     if grep -q 'corrupted data' $VTOY_PATH/xzlog; then
-                        echo 'xzcat failed, now try xzminidec...' >> $VTLOG        
-                        cat $vtfile | xzminidec | (cpio -idmu 2>>$VTLOG; cat > $vttmp)
+                        echo 'xzcat failed, now try xzminidec...' >> $VTLOG                        
+                        rm -f $VTOY_PATH/xzlog
+                        cat $vtfile | xzminidec 2> $VTOY_PATH/xzlog | (cpio -idmu 2>>$VTLOG; cat > $vttmp)
+
+                        if grep -q 'limit' $VTOY_PATH/xzlog; then                    
+                            echo 'xzminidec failed, now try xzcat_musl ...' >> $VTLOG  
+                            xzcat_musl $vtfile | (cpio -idmu 2>>$VTLOG; cat > $vttmp)
+                        fi
                     fi
-                    
                 else
                     ${vtx:5} $vtfile | (cpio -idmu 2>>$VTLOG; cat > $vttmp)
                 fi

IMG/cpio/ventoy/loop/cloudready/ventoy-hook.sh

@@ -129,6 +129,10 @@ mount -t devtmpfs dev /newdev
 cp -a /dev/mapper/ventoy* /newdev/mapper/
 cp -a /dev/ventoy* /newdev/
 
+if [ "$VTOY_VLNK_BOOT" = "01" ]; then
+    vtLine=$($VTOY_PATH/tool/vtoydump -f /ventoy/ventoy_os_param)
+    vtdiskname=${vtLine%%#*}
+fi
 
 vtshortname="${vtdiskname#/dev/}"
 mv /newdev/${vtshortname} /newdev/backup_${vtshortname}

IMG/cpio/ventoy/loop/fydeos/ventoy-hook.sh

@@ -129,6 +129,10 @@ mount -t devtmpfs dev /newdev
 cp -a /dev/mapper/ventoy* /newdev/mapper/
 cp -a /dev/ventoy* /newdev/
 
+if [ "$VTOY_VLNK_BOOT" = "01" ]; then
+    vtLine=$($VTOY_PATH/tool/vtoydump -f /ventoy/ventoy_os_param)
+    vtdiskname=${vtLine%%#*}
+fi
 
 vtshortname="${vtdiskname#/dev/}"
 mv /newdev/${vtshortname} /newdev/backup_${vtshortname}

IMG/cpio/ventoy/loop/recalbox/ventoy-create-part.sh

@@ -0,0 +1,45 @@
+#!/ventoy/busybox/sh
+#************************************************************************************
+# Copyright (c) 2020, longpanda <admin@ventoy.net>
+# 
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 3 of the
+# License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# 
+#************************************************************************************
+
+. /ventoy/hook/ventoy-hook-lib.sh
+
+VTPATH_OLD=$PATH; PATH=$BUSYBOX_PATH:$VTOY_PATH/tool:$PATH
+
+if [ -f /vtoy_dm_table ]; then
+    vtPartCnt=$(cat /vtoy_dm_table | wc -l)
+    if [ $vtPartCnt -ne 1 ]; then
+        exit 0
+    fi
+else
+    exit 0
+fi
+
+vtlog "try patch init script"
+
+if [ -f /new_root/etc/init.d/S11share ]; then
+    cp -a /new_root/etc/init.d/S11share /new_root/overlay/S11share
+    sed "/^ *createMissingPartitions *$/r $VTOY_PATH/loop/recalbox/ventoy-share.sh" -i /new_root/overlay/S11share
+    
+    vtFile=$(ls -1 /new_root/etc/init.d/ | grep -m1 S01)
+    
+    mount --bind /new_root/overlay/S11share  /new_root/etc/init.d/$vtFile
+    vtlog "patch S11share to $vtFile"
+fi
+
+PATH=$VTPATH_OLD

IMG/cpio/ventoy/loop/recalbox/ventoy-disk.sh

@@ -36,10 +36,15 @@ if [ "$vtdiskname" = "unknown" ]; then
     exit 0
 fi
 
+if [ -f $VTOY_PATH/modules/dm-mod.ko ]; then
+    insmod $VTOY_PATH/modules/dm-mod.ko
+fi
+
 ventoy_udev_disk_common_hook "${vtdiskname#/dev/}2" "noreplace"
 
 ventoy_create_dev_ventoy_part
 
+
 PATH=$VTPATH_OLD
 
 set_ventoy_hook_finish

IMG/cpio/ventoy/loop/recalbox/ventoy-hook.sh

@@ -20,4 +20,6 @@
 . $VTOY_PATH/hook/ventoy-os-lib.sh
 
 $SED "/mount.*devtmpfs/a\ $BUSYBOX_PATH/sh $VTOY_PATH/loop/recalbox/ventoy-disk.sh" -i /init
+$SED "/switch_root/i\ $BUSYBOX_PATH/sh $VTOY_PATH/loop/recalbox/ventoy-create-part.sh" -i /init
 
+#$SED "/switch_root/i\ exec /ventoy/busybox/sh" -i /init

IMG/cpio/ventoy/loop/recalbox/ventoy-share.sh

@@ -0,0 +1,21 @@
+sync
+
+while [ -n "Y" ]; do
+    clear > /dev/console
+    echo '################################################' > /dev/console
+    echo '################################################' > /dev/console
+    echo '### Please reboot and load from Ventoy again ###' > /dev/console
+    echo '### This only needed for the first boot time ###' > /dev/console
+    echo '################################################' > /dev/console
+    echo '################################################' > /dev/console
+
+    clear > /dev/tty0
+    echo '################################################' > /dev/tty0
+    echo '################################################' > /dev/tty0
+    echo '### Please reboot and load from Ventoy again ###' > /dev/tty0
+    echo '### This only needed for the first boot time ###' > /dev/tty0
+    echo '################################################' > /dev/tty0
+    echo '################################################' > /dev/tty0
+    sleep 1
+done
+

IMG/cpio/ventoy/ventoy_chain.sh

@@ -52,8 +52,12 @@ ventoy_get_os_type() {
         fi
     fi
 
+    # PrimeOS :
+    if $GREP -q 'PrimeOS' /proc/version; then
+        echo 'primeos'; return
+
     # Debian :
-    if $GREP -q '[Dd]ebian' /proc/version; then
+    elif $GREP -q '[Dd]ebian' /proc/version; then
         echo 'debian'; return
 
     # Ubuntu : do the same process with debian

INSTALL/CreatePersistentImg.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 size=1024
 fstype=ext4
@@ -7,13 +7,14 @@ config=''
 outputfile=persistence.dat
 
 print_usage() {
-    echo 'Usage:  CreatePersistentImg.sh [ -s size ] [ -t fstype ] [ -l LABEL ] [ -c CFG ]'
+    echo 'Usage:  sudo ./CreatePersistentImg.sh [ -s size ] [ -t fstype ] [ -l LABEL ] [ -c CFG ] [ -e ]'
     echo '  OPTION: (optional)'
     echo '   -s size in MB, default is 1024'
     echo '   -t filesystem type, default is ext4  ext2/ext3/ext4/xfs are supported now'
     echo '   -l label, default is casper-rw'
     echo '   -c configfile name inside the persistence file. File content is "/ union"'
     echo '   -o outputfile name, default is persistence.dat'
+    echo '   -e enable encryption, disabled by default (only few distros support this)'    
     echo ''
 }
 
@@ -33,6 +34,9 @@ while [ -n "$1" ]; do
     elif [ "$1" = "-o" ]; then
         shift
         outputfile=$1
+    elif [ "$1" = "-e" ]; then
+        read -s -p "Encryption passphrase: " passphrase
+        echo
     elif [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
         print_usage
         exit 0
@@ -52,10 +56,15 @@ fi
 
 # check size
 if echo $size | grep -q "^[0-9][0-9]*$"; then
-    if [ $size -le 1 ]; then
-        echo "Invalid size $size"
-        exit 1
+    vtMinSize=1
+    if echo $fstype | grep -q '^xfs$'; then
+        vtMinSize=16
     fi
+    
+    if [ $size -lt $vtMinSize ]; then
+        echo "size too small ($size)"
+        exit 1
+    fi    
 else
     echo "Invalid size $size"
     exit 1
@@ -86,6 +95,13 @@ freeloop=$(losetup -f)
 
 losetup $freeloop "$outputfile"
 
+if [ ! -z "$passphrase" ]; then
+    printf "$passphrase" | cryptsetup -q --verbose luksFormat $freeloop -
+    printf "$passphrase" | cryptsetup -q --verbose luksOpen $freeloop persist_decrypted -
+    _freeloop=$freeloop
+    freeloop="/dev/mapper/persist_decrypted"
+fi
+
 mkfs -t $fstype $fsopt -L $label $freeloop 
 
 sync
@@ -104,4 +120,9 @@ if [ -n "$config" ]; then
     rm -rf ./persist_tmp_mnt
 fi
 
+if [ ! -z "$passphrase" ]; then
+    cryptsetup luksClose $freeloop
+    freeloop=$_freeloop
+fi
+
 losetup -d $freeloop

INSTALL/README

@@ -22,6 +22,19 @@ Please refer https://www.ventoy.net/en/doc_start.html for details.
 2. open your browser and visit http://127.0.0.1:24680
 
 
+========== VentoyPlugson.sh ===============
+1. sudo sh VentoyPlugson.sh 
+2. open your browser and visit http://127.0.0.1:24681
+
+========== VentoyVlnk.sh ===============
+Usage:  sudo sh VentoyVlnk.sh CMD FILE
+  CMD:
+   -c FILE      create vlnk for FILE
+   -l VLNK      parse vlnk file
+   -v           print verbose info
+   -h           print this help
+
+
 ========= VentoyGUI ===================
 VentoyGUI is native GUI program for Linux (GTK/QT)
 1. Just double-click the file (e.g. VentoyGUI.x86_64)

INSTALL/Ventoy2Disk.sh

@@ -23,8 +23,6 @@ else
 fi
 export PATH="./tool/$TOOLDIR:$PATH"
 
-rm -f ./log.txt
-
 
 echo ''
 echo '**********************************************'
@@ -48,23 +46,25 @@ echo "############# Ventoy2Disk $* [$TOOLDIR] ################" >> ./log.txt
 date >> ./log.txt
 
 #decompress tool
-if [ -f ./tool/$TOOLDIR/ash ]; then
-    echo "no need to decompress tools" >> ./log.txt
-else
-    cd ./tool/$TOOLDIR
-    
+echo "decompress tools" >> ./log.txt
+cd ./tool/$TOOLDIR
+
+ls *.xz > /dev/null 2>&1
+if [ $? -eq 0 ]; then
     [ -f ./xzcat ] && chmod +x ./xzcat
-    
+
     for file in $(ls *.xz); do
+        echo "decompress $file" >> ./log.txt
         xzcat $file > ${file%.xz}
         [ -f ./${file%.xz} ] && chmod +x ./${file%.xz}
         [ -f ./$file ] && rm -f ./$file
     done
-    cd ../../
-    
-    chmod +x -R ./tool/$TOOLDIR
 fi
 
+cd ../../
+chmod +x -R ./tool/$TOOLDIR
+
+
 if [ -f /bin/bash ]; then
     /bin/bash ./tool/VentoyWorker.sh $*
 else

INSTALL/VentoyPlugson.sh

@@ -0,0 +1,218 @@
+#!/bin/sh
+
+. ./tool/ventoy_lib.sh
+
+print_usage() {    
+    echo 'Usage:  sudo sh VentoyPlugson.sh [OPTION] /dev/sdX'
+    echo '  OPTION: (optional)'
+    echo '   -H x.x.x.x  http server IP address (default is 127.0.0.1)'
+    echo '   -P PORT     http server PORT (default is 24681)'
+    echo '   -h          print this help'
+    echo ''
+}
+
+uid=$(id -u)
+if [ $uid -ne 0 ]; then
+    echo "Please use sudo or run the script as root."
+    exit 1
+fi
+
+
+OLDDIR=$(pwd)
+
+machine=$(uname -m)
+if echo $machine | egrep -q 'aarch64|arm64'; then
+    TOOLDIR=aarch64
+elif echo $machine | egrep -q 'x86_64|amd64'; then
+    TOOLDIR=x86_64
+elif echo $machine | egrep -q 'mips64'; then
+    TOOLDIR=mips64el
+elif echo $machine | egrep -q 'i[3-6]86'; then
+    TOOLDIR=i386
+else
+    echo "Unsupported machine type $machine"    
+    exit 1
+fi
+
+
+if ! [ -f "$OLDDIR/tool/plugson.tar.xz" ]; then
+    echo "Please run under the correct directory!" 
+    exit 1
+fi
+
+echo "############# VentoyPlugson $* [$TOOLDIR] ################" >> ./VentoyPlugson.log
+date >> ./VentoyPlugson.log
+
+echo "decompress tools" >> ./VentoyPlugson.log
+cd ./tool/$TOOLDIR
+
+ls *.xz > /dev/null 2>&1
+if [ $? -eq 0 ]; then
+    [ -f ./xzcat ] && chmod +x ./xzcat
+
+    for file in $(ls *.xz); do
+        echo "decompress $file" >> ./VentoyPlugson.log
+        xzcat $file > ${file%.xz}
+        [ -f ./${file%.xz} ] && chmod +x ./${file%.xz}
+        [ -f ./$file ] && rm -f ./$file
+    done
+fi
+
+cd ../../
+chmod +x -R ./tool/$TOOLDIR
+
+if ! [ -f "$OLDDIR/tool/$TOOLDIR/Plugson" ]; then
+    echo "$OLDDIR/tool/$TOOLDIR/Plugson does not exist!" 
+    exit 1
+fi
+
+
+PATH=./tool/$TOOLDIR:$PATH
+
+HOST="127.0.0.1"
+PORT=24681
+
+while [ -n "$1" ]; do
+    if [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
+        print_usage
+        exit 0
+    elif [ "$1" = "-H" ]; then
+        shift
+        if echo $1 | grep -q '[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*'; then
+            HOST="$1"
+        else
+            echo "Invalid host $1"
+            exit 1
+        fi
+    elif [ "$1" = "-P" ]; then
+        shift
+        if [ $1 -gt 0 -a $1 -le 65535 ]; then
+            PORT="$1"
+        else
+            echo "Invalid port $1"
+            exit 1
+        fi
+    else
+        DISK=$1
+    fi
+    
+    shift
+done
+
+if [ -z "$DISK" ]; then
+    print_usage
+    exit 0
+fi
+
+if ps -ef | grep "tool/$TOOLDIR/Plugson.*$HOST.*$PORT" | grep -q -v grep; then
+    echo "Another ventoy server is running now, please close it first."
+    exit 1
+fi
+
+if echo $DISK | grep -q "[a-z]d[a-z][1-9]"; then
+    DISK=${DISK:0:-1}
+fi
+
+if echo $DISK | egrep -q "/dev/nvme|/dev/mmcblk/dev/nbd"; then
+    if echo $DISK | grep -q "p[1-9]$"; then
+        DISK=${DISK:0:-2}
+    fi
+fi
+
+
+if [ ! -b "$DISK" ]; then
+    echo "$DISK does NOT exist."
+    exit 1
+fi
+
+
+version=$(get_disk_ventoy_version $DISK)
+if [ $? -eq 0 ]; then
+    echo "Ventoy version in Disk: $version"
+    
+    vtPart1Type=$(dd if=$DISK bs=1 count=1 skip=450 status=none | hexdump -n1 -e  '1/1 "%02X"')
+    if [ "$vtPart1Type" = "EE" ]; then            
+        echo "Disk Partition Style  : GPT"
+        partstyle=1
+    else
+        echo "Disk Partition Style  : MBR"
+        partstyle=0
+    fi
+
+    if check_disk_secure_boot $DISK; then
+        echo "Secure Boot Support   : YES"
+        secureboot=1
+    else
+        echo "Secure Boot Support   : NO"
+        secureboot=0
+    fi
+else
+    echo "$DISK is NOT Ventoy disk."
+    exit 1
+fi
+
+PART1=$(get_disk_part_name $DISK 1)
+
+if grep -q "^$PART1 " /proc/mounts; then
+    mtpnt=$(grep "^$PART1 " /proc/mounts | awk '{print $2}')
+    fstype=$(grep "^$PART1 " /proc/mounts | awk '{print $3}')
+    
+    if echo $fstype | grep -q -i 'fuse'; then
+        if hexdump -C -n 16 $PART1 | grep -q -i "EXFAT"; then
+            fstype="exFAT"
+        elif hexdump -C -n 16 $PART1 | grep -q -i "NTFS"; then
+            fstype="NTFS"       
+        fi
+    fi
+    
+    echo "$PART1 is mounted at $mtpnt $fstype"
+else
+    echo "$PART1 is NOT mounted, please mount it first!"
+    exit 1
+fi
+
+if [ -d "$mtpnt/ventoy" ]; then
+    echo "ventoy directory exist OK"
+else
+    echo "create ventoy directory"
+    mkdir -p "$mtpnt/ventoy"
+    if [ -d "$mtpnt/ventoy" ]; then
+        chmod -R 0755 "$mtpnt/ventoy"
+    else
+        echo "Failed to create directory $mtpnt/ventoy"
+        exit 1
+    fi
+fi
+
+
+#change current directory to Ventoy disk
+cd "$mtpnt"
+$OLDDIR/tool/$TOOLDIR/Plugson "$HOST" "$PORT" "$OLDDIR" "$DISK" $version "$fstype" $partstyle $secureboot   &
+wID=$!
+sleep 1
+
+if [ -f /proc/$wID/maps ]; then
+    echo ""
+    echo "==============================================================="
+    if [ "$LANG" = "zh_CN.UTF-8" ]; then
+        echo "  Ventoy Plugson Server 已经启动 ..."
+        echo "  请打开浏览器，访问 http://${HOST}:${PORT}"
+    else
+        echo "  Ventoy Plugson Server is running ..."
+        echo "  Please open your browser and visit http://${HOST}:${PORT}"
+    fi
+    echo "==============================================================="
+    echo ""
+    echo "################## Press Ctrl + C to exit #####################"
+    echo ""
+
+    wait $wID
+fi
+
+
+if [ -n "$OLDDIR" ]; then 
+    CURDIR=$(pwd)
+    if [ "$CURDIR" != "$OLDDIR" ]; then
+        cd "$OLDDIR"
+    fi
+fi