1.0.66 release

Finnish language update

.github/ISSUE_TEMPLATE/issue_template.yml

@@ -21,7 +21,7 @@ body:
     attributes:
       label: Ventoy Version
       description: What version of ventoy are you running?
-      placeholder: 1.0.63
+      placeholder: 1.0.66
     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)
 {
@@ -8,6 +11,24 @@ 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
+

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
@@ -910,6 +987,11 @@ 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);
 
         for (i = 0; i < sizeof(ventoy_os_param); i++)

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/kern/file.c

@@ -106,20 +106,110 @@ 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_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_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;
+    }
+    
+    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 && (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)
     goto fail;
@@ -141,6 +231,7 @@ 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/ventoy/ventoy_cmd.c

@@ -102,6 +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;
 
@@ -124,6 +125,7 @@ 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;
@@ -154,6 +156,8 @@ static char g_vtoy_prompt_msg[64];
 
 static char g_json_case_mis_path[32];
 
+static ventoy_vlnk_part *g_vlnk_part_list = NULL;
+
 static int ventoy_get_fs_type(const char *fs)
 {
     if (NULL == fs)
@@ -698,32 +702,6 @@ 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;
@@ -1006,6 +984,7 @@ 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);
 
@@ -1029,7 +1008,7 @@ 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;
@@ -1073,6 +1052,11 @@ 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);
@@ -1610,12 +1594,231 @@ 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 *pSig = (grub_uint32_t *)data;
+
+    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);
+
+        /* skip ventoy device self */
+        if (sig != *(grub_uint32_t *)data)
+        {
+            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, g_ventoy_part_info->MBR.BootCode + 0x1b8);
+    }
+
+    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;
@@ -1785,6 +1988,18 @@ static int ventoy_collect_img_files(const char *filename, const struct grub_dirh
             }
         }
 
+        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)
         {
@@ -1795,10 +2010,17 @@ 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)
+            {
+                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)
             {
@@ -2748,6 +2970,7 @@ 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;
@@ -2794,6 +3017,17 @@ 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++)
     {
@@ -3638,6 +3872,7 @@ 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;
@@ -3647,6 +3882,12 @@ static int ventoy_img_partition_callback (struct grub_disk *disk, const grub_par
         "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;
 }
 
@@ -3660,6 +3901,7 @@ 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)
@@ -3689,6 +3931,9 @@ 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:
 
     check_free(device_name, grub_free);
@@ -5064,6 +5309,114 @@ 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;
+}
+
 int ventoy_env_init(void)
 {
     char buf[64];
@@ -5251,6 +5604,10 @@ 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 },
 };
 
 int ventoy_register_all_cmd(void)

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

@@ -304,6 +304,7 @@ 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];
 
@@ -604,7 +605,6 @@ 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 +826,7 @@ typedef struct ventoy_video_mode
 typedef struct file_fullpath
 {
     char path[256];
+    int vlnk_add;
 }file_fullpath;
 
 typedef struct theme_list
@@ -1153,5 +1154,20 @@ struct g_ventoy_map{
 };
 #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;
+
+extern char g_iso_path[256];
+int ventoy_add_vlnk_file(char *dir, const char *name);
+
 #endif /* __VENTOY_DEF_H__ */
 

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

@@ -171,11 +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)
@@ -195,11 +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)
@@ -463,7 +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;
@@ -561,7 +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;
@@ -596,7 +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++;
@@ -1401,7 +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);
                 }
@@ -1542,7 +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);
                 }
@@ -2684,6 +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;
@@ -2704,10 +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;
     }
 

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 +216,10 @@ 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);
+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

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

@@ -54,9 +54,16 @@ fi
 if [ -f $VTOY_PATH/autoinstall ]; then
     echo "Do auto install ..." >> $VTLOG
     
+    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
 
 #for ARMA aka Omoikane

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/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
@@ -65,12 +67,16 @@ set_ventoy_hook_finish() {
 }
 
 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
 }
 
 get_ventoy_iso_name() {
@@ -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}
@@ -135,11 +133,16 @@ not_ventoy_disk() {
         vtDiskName=$1
     fi
 
+    if [ "$VTOY_VLNK_BOOT" = "01" ]; then
+        vtVtoyDisk=$($VTOY_PATH/tool/vtoydump -t $VTOY_PATH/ventoy_os_param)
+        [ "$vtVtoyDisk" != "/dev/$vtDiskName" ]
+    else
         if $VTOY_PATH/tool/vtoydump -f $VTOY_PATH/ventoy_os_param -c "$vtDiskName"; then
             $BUSYBOX_PATH/false
         else
             $BUSYBOX_PATH/true
         fi
+    fi
 }
 
 ventoy_get_vblade_bin() {
@@ -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 $*"
     
@@ -238,11 +378,28 @@ create_ventoy_device_mapper() {
     fi
     
     $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
+
+    if ventoy_need_dm_patch; then    
+        #recover printk level
+        echo $vtLevel1 $vtLevel2 $vtLevel3 $vtLevel4 > /proc/sys/kernel/printk
+    fi
 }
 
 create_persistent_device_mapper() {
@@ -263,7 +420,23 @@ create_persistent_device_mapper() {
     fi
     
     $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}
@@ -559,6 +761,11 @@ ventoy_create_dev_ventoy_part() {
             
             vtPartid=$(expr $vtPartid + 1)
         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/$vtShortName ]; then
+                    if [ "$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/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
+

INSTALL/CreatePersistentImg.sh

@@ -56,8 +56,13 @@ fi
 
 # check size
 if echo $size | grep -q "^[0-9][0-9]*$"; then
-    if [ $size -le 1 ]; then
-        echo "Invalid size $size"
+    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

INSTALL/README

@@ -26,6 +26,14 @@ Please refer https://www.ventoy.net/en/doc_start.html for details.
 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)

INSTALL/grub/grub.cfg

@@ -1390,7 +1390,19 @@ function efi_common_menuentry {
         return
     fi
     
-    vt_concat_efi_iso "${vtoy_iso_part}${vt_chosen_path}" vtoy_iso_buf
+    unset vt_vlnk_dst
+    if vt_is_vlnk_name "${vt_chosen_path}"; then
+        vt_get_vlnk_dst "${vtoy_iso_part}${vt_chosen_path}" vt_vlnk_dst
+        if [ -z "$vt_vlnk_dst" ]; then
+            echo -e "\n### VLNK FILE NOT FOUND ###\n### VLNK 文件不存在 ###\n"            
+            ventoy_pause
+            return
+        fi
+    else
+        vt_vlnk_dst="${vtoy_iso_part}${vt_chosen_path}"
+    fi
+    
+    vt_concat_efi_iso "${vt_vlnk_dst}" vtoy_iso_buf
     
     ventoy_debug_pause
     
@@ -1402,7 +1414,7 @@ function efi_common_menuentry {
     
     if [ -n "$vtoy_dotefi_retry" ]; then
         unset vtoy_dotefi_retry
-        chainloader "${vtoy_iso_part}${vt_chosen_path}"
+        chainloader "${vt_vlnk_dst}"
         boot
     fi
     
@@ -1438,17 +1450,6 @@ function vhdboot_common_func {
 }
 
 function vhd_common_menuentry {
-
-    if [ "$VTOY_VHD_NO_WARNING" != "1" ]; then
-        if [ "$vtoy_iso_fs" != "ntfs" ]; then
-            echo -e "!!! WARNING !!!\n"
-            echo -e "\nPartition1 ($vtoy_iso_fs) is NOT ntfs, the VHD(x) file may not boot normally \n"
-            echo -e "\nVHD(x) 文件所在分区不是 ntfs 格式, 可能无法正常启动 \n\n"
-            echo -n "press ENTER to continue boot (请按 回车 键继续) ..."    
-            read vtInputKey
-        fi
-    fi
-
     vt_chosen_img_path vt_chosen_path vt_chosen_size
     
     if vt_check_password "${vt_chosen_path}"; then
@@ -1459,7 +1460,28 @@ function vhd_common_menuentry {
         return
     fi
     
-    vhdboot_common_func "${vt_chosen_path}"
+    unset vt_vlnk_dst
+    if vt_is_vlnk_name "${vt_chosen_path}"; then
+        vt_get_vlnk_dst "${vtoy_iso_part}${vt_chosen_path}" vt_vlnk_dst
+        if [ -z "$vt_vlnk_dst" ]; then
+            echo -e "\n### VLNK FILE NOT FOUND ###\n### VLNK 文件不存在 ###\n"            
+            ventoy_pause
+            return
+        fi
+    else
+        vt_vlnk_dst="${vt_chosen_path}"
+        if [ "$VTOY_VHD_NO_WARNING" != "1" ]; then
+            if [ "$vtoy_iso_fs" != "ntfs" ]; then
+                echo -e "!!! WARNING !!!\n"
+                echo -e "\nPartition1 ($vtoy_iso_fs) is NOT ntfs, the VHD(x) file may not boot normally \n"
+                echo -e "\nVHD(x) 文件所在分区不是 ntfs 格式, 可能无法正常启动 \n\n"
+                echo -n "press ENTER to continue boot (请按 回车 键继续) ..."    
+                read vtInputKey
+            fi
+        fi
+    fi
+    
+    vhdboot_common_func "${vt_vlnk_dst}"
 }
 
 function vhd_unsupport_menuentry {
@@ -1535,7 +1557,19 @@ function vtoy_common_menuentry {
         return
     fi
     
-    vtoyboot_common_func "${vtoy_iso_part}${vt_chosen_path}"
+    unset vt_vlnk_dst
+    if vt_is_vlnk_name "${vt_chosen_path}"; then
+        vt_get_vlnk_dst "${vtoy_iso_part}${vt_chosen_path}" vt_vlnk_dst
+        if [ -z "$vt_vlnk_dst" ]; then
+            echo -e "\n### VLNK FILE NOT FOUND ###\n### VLNK 文件不存在 ###\n"            
+            ventoy_pause
+            return
+        fi
+    else
+        vt_vlnk_dst="${vtoy_iso_part}${vt_chosen_path}"
+    fi
+    
+    vtoyboot_common_func "${vt_vlnk_dst}"
 }
 
 function vtoy_unsupport_menuentry {
@@ -1688,9 +1722,23 @@ function ventoy_img_ubos {
 }
 
 function ventoy_img_recalbox {
+    if [ $vtoy_img_max_part_end -gt $vt_chosen_size ]; then
+        echo -e "\nPlease extend the img file size before boot it. \n"
+        ventoy_pause
+        return
+    fi
+
     vt_load_cpio  $vtoy_path  "${vt_chosen_path}" ${vtoy_iso_part} "busybox=$ventoy_busybox_ver"
     vt_trailer_cpio ${vtoy_iso_part} "${vt_chosen_path}" noinit
 
+    if [ -e (vtimghd,1)/boot/recalbox ]; then
+        loopback recalbox (vtimghd,1)/boot/recalbox
+        vt_get_lib_module_ver (recalbox) /lib/modules/ vt_module_ver
+        if [ -n "$vt_module_ver" ]; then        
+            vt_img_extra_initrd_append  (recalbox)/lib/modules/$vt_module_ver/kernel/drivers/md/dm-mod.ko
+        fi
+    fi
+
     ventoy_debug_pause
 
     #boot image file
@@ -1971,7 +2019,7 @@ function img_common_menuentry {
         ventoy_img_batocera
     elif vt_str_begin "$vtImgHd1Label" "Tails"; then
         ventoy_img_tails
-    elif [ "$vtImgHd2Label" = "RECALBOX" ]; then
+    elif [ "$vtImgHd2Label" = "RECALBOX" -o "$vtImgHd1Label" = "RECALBOX" ]; then
         ventoy_img_recalbox
     elif [ "$vtImgHd1Label" = "ESYSRESCUE" ]; then
         ventoy_img_esysrescue
@@ -2022,7 +2070,7 @@ function img_unsupport_menuentry {
 #############################################################
 #############################################################
 
-set VENTOY_VERSION="1.0.63"
+set VENTOY_VERSION="1.0.66"
 
 #ACPI not compatible with Window7/8, so disable by default
 set VTOY_PARAM_NO_ACPI=1
@@ -2030,7 +2078,7 @@ set VTOY_PARAM_NO_ACPI=1
 # Default menu display mode, you can change it as you want.
 #    0: List mode   
 #    1: TreeView mode
-set VTOY_DEFAULT_MENU_MODE=0
+set VTOY_DEFAULT_MENU_MODE=1
 
 set VTOY_MEM_DISK_STR="[Memdisk]"
 set VTOY_ISO_RAW_STR="Compatible Mode"
@@ -2142,6 +2190,7 @@ else
     set VTOY_HOTKEY_TIP="h:Help  F1:Memdisk  F2:Power  F3:ListView  F4:Localboot  F5:Tools  F6:ExMenu"
 fi
 
+terminal_output  console
 
 if [ -n "$vtoy_gfxmode" ]; then
     set gfxmode=$vtoy_gfxmode