grub2 boot mode for UEFI

INSTALL/grub/grub.cfg

@@ -648,10 +648,14 @@ function uefi_linux_menu_func {
     if [ -n "$vtoy_chain_mem_addr" ]; then
         ventoy_acpi_param ${vtoy_chain_mem_addr} 2048
         ventoy_cli_console     
-        
-        if [ "$VTOY_EFI_ARCH" != "mips" ]; then
-            chainloader ${vtoy_path}/ventoy_${VTOY_EFI_ARCH}.efi fallback env_param=${env_param} isoefi=${LoadIsoEfiDriver} FirstTry=${FirstTryBootFile} ${vtdebug_flag} mem:${vtoy_chain_mem_addr}:size:${vtoy_chain_mem_size}
-            boot
+
+        if vt_check_mode 3; then
+            ventoy_debug_pause
+        else
+            if [ "$VTOY_EFI_ARCH" != "mips" ]; then
+                chainloader ${vtoy_path}/ventoy_${VTOY_EFI_ARCH}.efi fallback env_param=${env_param} isoefi=${LoadIsoEfiDriver} FirstTry=${FirstTryBootFile} ${vtdebug_flag} mem:${vtoy_chain_mem_addr}:size:${vtoy_chain_mem_size}
+                boot
+            fi
         fi
 
         # fallback
@@ -1620,6 +1624,7 @@ set VTOY_DEFAULT_MENU_MODE=0
 
 set VTOY_MEM_DISK_STR="[Memdisk]"
 set VTOY_ISO_RAW_STR="Compatible Mode"
+set VTOY_GRUB2_MODE_STR="GRUB2 Mode"
 set VTOY_ISO_UEFI_DRV_STR="UEFI FS"
 
 set VTOY_F2_CMD="ventoy_power"

INSTALL/grub/themes/ventoy/theme.txt

@@ -70,6 +70,14 @@ terminal-box: "terminal_box_*.png"
 }
 
 
++ hbox{ 
+    left = 30%+100
+    top = 95%-50
+    width = 10%
+    height = 25
+    + label {text = "@VTOY_GRUB2_MODE@" color = "red" align = "left"} 
+}
+
 + hbox{ 
     left = 90%
     top = 55