1.0.66 release

.github/ISSUE_TEMPLATE/issue_template.yml

@@ -21,7 +21,7 @@ body:
     attributes:
       label: Ventoy Version
       description: What version of ventoy are you running?
-      placeholder: 1.0.65
+      placeholder: 1.0.66
     validations:
       required: true
   - type: dropdown

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

@@ -229,12 +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();
@@ -578,7 +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 ||
@@ -956,6 +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

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

@@ -106,19 +106,109 @@ 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)
@@ -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;
 
@@ -155,6 +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)
@@ -699,32 +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;
@@ -1007,6 +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);
 
@@ -1030,7 +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;
@@ -1074,6 +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);
@@ -1611,12 +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 +1987,18 @@ 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)
@@ -1796,9 +2010,16 @@ 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)
@@ -2803,6 +3024,10 @@ void ventoy_fill_os_param(grub_file_t file, ventoy_os_param *param)
         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++)
     {
@@ -5084,6 +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];
@@ -5271,6 +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 +2067,172 @@ 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("vlnk 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)
+    {
+        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;
 
-    debug("wim chain data begin <%s> ...\n", args[0]);
+    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)
     {
@@ -2097,11 +2247,12 @@ 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)
@@ -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

@@ -122,6 +122,8 @@ typedef struct ventoy_os_param
      * 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
@@ -151,11 +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/ventoy/hook/ventoy-hook-lib.sh

@@ -31,6 +31,7 @@ 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 +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
 }
 
@@ -121,14 +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}
@@ -136,10 +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
 }
 
@@ -803,7 +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/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}

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)