diff --git a/FUSEISO/vtoy_fuse_iso.c b/FUSEISO/vtoy_fuse_iso.c
index 0350ea0c..0178c8d9 100644
--- a/FUSEISO/vtoy_fuse_iso.c
+++ b/FUSEISO/vtoy_fuse_iso.c
@@ -114,11 +114,12 @@ static int ventoy_iso_open(const char *path, struct fuse_file_info *file)
     return 0;
 }
 
-static int ventoy_read_iso_sector(uint32_t sector, uint32_t num, void *buf)
+static int ventoy_read_iso_sector(uint32_t sector, uint32_t num, char *buf)
 {
     uint32_t i = 0;
     uint32_t leftSec = 0;
     uint32_t readSec = 0;
+    off_t offset = 0;
     dmtable_entry *entry = NULL;
     
     for (i = 0; i < g_disk_entry_num && num > 0; i++)
@@ -127,14 +128,15 @@ static int ventoy_read_iso_sector(uint32_t sector, uint32_t num, void *buf)
 
         if (sector >= entry->isoSector && sector < entry->isoSector + entry->sectorNum)
         {
-            lseek(g_disk_fd, (entry->diskSector + (sector - entry->isoSector)) * 512, SEEK_SET);
+            offset = (entry->diskSector + (sector - entry->isoSector)) * 512;
 
             leftSec = entry->sectorNum - (sector - entry->isoSector);
             readSec = (leftSec > num) ? num : leftSec;
 
-            read(g_disk_fd, buf, readSec * 512);
+            pread(g_disk_fd, buf, readSec * 512, offset);
 
             sector += readSec;
+            buf += readSec * 512;
             num -= readSec;
         }
     }
diff --git a/FUSEISO/vtoy_fuse_iso_32 b/FUSEISO/vtoy_fuse_iso_32
index 607ce42a..3227315e 100644
Binary files a/FUSEISO/vtoy_fuse_iso_32 and b/FUSEISO/vtoy_fuse_iso_32 differ
diff --git a/FUSEISO/vtoy_fuse_iso_64 b/FUSEISO/vtoy_fuse_iso_64
index ad4ff340..122b1d70 100644
Binary files a/FUSEISO/vtoy_fuse_iso_64 and b/FUSEISO/vtoy_fuse_iso_64 differ
diff --git a/GRUB2/MOD_SRC/grub-2.04/grub-core/lib/syslinux_parse.c b/GRUB2/MOD_SRC/grub-2.04/grub-core/lib/syslinux_parse.c
index 0f82b751..44649d41 100644
--- a/GRUB2/MOD_SRC/grub-2.04/grub-core/lib/syslinux_parse.c
+++ b/GRUB2/MOD_SRC/grub-2.04/grub-core/lib/syslinux_parse.c
@@ -423,7 +423,6 @@ static grub_err_t
 cmd_timeout (const char *line, struct syslinux_menu *menu)
 {
   menu->timeout = grub_strtoul (line, NULL, 0);
-  
   return GRUB_ERR_NONE;
 }
 
@@ -991,6 +990,7 @@ write_entry (struct output_buffer *outbuf,
 
 	    print_string ("\n");
 	  }
+      print_string ("boot\n");
       }
       break;
     case KERNEL_CHAINLOADER:
@@ -1433,6 +1433,7 @@ config_file (struct output_buffer *outbuf,
 	     const char *fname, struct syslinux_menu *parent,
 	     grub_syslinux_flavour_t flav)
 {
+  const char *data;
   grub_err_t err;
   struct syslinux_menu menu;
   struct syslinux_menuentry *curentry, *lentry;
@@ -1447,6 +1448,13 @@ config_file (struct output_buffer *outbuf,
 
   menu.filename = fname;
   menu.parent = parent;
+
+  data = grub_env_get("vtdebug_flag");
+  if (data && data[0])
+  {
+      menu.timeout = 100;
+  }
+  
   err = syslinux_parse_real (&menu);
   if (err)
     return err;
diff --git a/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/i386/linux.c b/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/i386/linux.c
index 6601d5de..d17eeba1 100644
--- a/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/i386/linux.c
+++ b/GRUB2/MOD_SRC/grub-2.04/grub-core/loader/i386/linux.c
@@ -86,6 +86,9 @@ static int ventoy_debug = 0;
 static int ventoy_initrd_called = 0;
 static int ventoy_linux_argc = 0;
 static char **ventoy_linux_args = NULL;
+static int ventoy_extra_initrd_num = 0;
+static char *ventoy_extra_initrd_list[256];
+
 static grub_err_t
 grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)), int argc, char *argv[]);
 
@@ -427,8 +430,9 @@ static void ventoy_debug_pause(void)
 
 static int ventoy_preboot(void)
 {
+    int i;
+    const char *file;
     char buf[128];
-    char *argv[2];
 
     if (ventoy_debug) 
     {
@@ -449,16 +453,28 @@ static int ventoy_preboot(void)
 
     grub_snprintf(buf, sizeof(buf), "mem:%s:size:%s", grub_env_get("ventoy_cpio_addr"), grub_env_get("ventoy_cpio_size"));
 
-    argv[0] = buf;
-    argv[1] = NULL;
-    grub_cmd_initrd(NULL, 1, argv);
+    ventoy_extra_initrd_list[ventoy_extra_initrd_num++] = grub_strdup(buf);
+
+    file = grub_env_get("vtoy_img_part_file");
+    if (file)
+    {
+        ventoy_extra_initrd_list[ventoy_extra_initrd_num++] = grub_strdup(file);
+    }
 
     if (ventoy_debug) 
     {
-        grub_printf("add initrd %s\n", buf);
+        grub_printf("========== initrd list ==========\n");
+        for (i = 0; i < ventoy_extra_initrd_num; i++)
+        {
+            grub_printf("%s\n", ventoy_extra_initrd_list[i]);
+        }
+        grub_printf("=================================\n");
+        
         ventoy_debug_pause();
     }
 
+    grub_cmd_initrd(NULL, ventoy_extra_initrd_num, ventoy_extra_initrd_list);
+
     return 0;
 }
 
@@ -478,6 +494,13 @@ static int ventoy_boot_opt_filter(char *opt)
         }
         return 0;
     }
+    
+    if (grub_strncmp(opt, "init=", 5) == 0)
+    {
+        opt[0] = 'v';
+        opt[1] = 't';
+        return 0;
+    }
 
     if (ventoy_debug)
     {
@@ -597,7 +620,7 @@ static int ventoy_bootopt_hook(int argc, char *argv[])
 
     if (ventoy_debug)
     {
-        ventoy_linux_args[count++] = grub_strdup("loglevel=10");
+        ventoy_linux_args[count++] = grub_strdup("loglevel=7");
     }
 
     ventoy_linux_argc = count;
@@ -663,6 +686,72 @@ grub_cmd_unset_boot_opt (grub_command_t cmd __attribute__ ((unused)),
     return 0;
 }
 
+static grub_err_t
+grub_cmd_extra_initrd_append (grub_command_t cmd __attribute__ ((unused)),
+		int argc, char *argv[])
+{
+    int newclen = 0;
+    char *pos = NULL;
+    char *end = NULL;
+    char buf[256] = {0};
+    
+    if (argc != 1)
+    {
+        return 1;
+    }
+
+    for (pos = argv[0]; *pos; pos++)
+    {
+        if (*pos == '/')
+        {
+            end = pos;
+        }
+    }
+
+    if (end)
+    {
+        /* grub2 newc bug workaround */
+        newclen = (int)grub_strlen(end + 1);
+        if ((110 + newclen) % 4 == 0)
+        {
+            grub_snprintf(buf, sizeof(buf), "newc:.%s:%s", end + 1, argv[0]);
+        }
+        else
+        {
+            grub_snprintf(buf, sizeof(buf), "newc:%s:%s", end + 1, argv[0]);
+        }
+    
+        if (ventoy_extra_initrd_num < 256)
+        {
+            ventoy_extra_initrd_list[ventoy_extra_initrd_num++] = grub_strdup(buf);        
+        }
+    }
+
+    return 0;
+}
+
+static grub_err_t
+grub_cmd_extra_initrd_reset (grub_command_t cmd __attribute__ ((unused)),
+		int argc, char *argv[])
+{
+    int i;
+    
+    (void)argc;
+    (void)argv;
+
+    for (i = 0; i < ventoy_extra_initrd_num; i++)
+    {
+        if (ventoy_extra_initrd_list[i])
+        {
+            grub_free(ventoy_extra_initrd_list[i]);
+        }
+    }
+
+    grub_memset(ventoy_extra_initrd_list, 0, sizeof(ventoy_extra_initrd_list));
+
+    return 0;
+}
+
 
 static grub_err_t
 grub_linux_boot (void)
@@ -1416,8 +1505,8 @@ ventoy_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
 		 int argc, char *argv[])
 {
     int i;
+    const char *file;
     char buf[64];
-    char *newargv[32] = {NULL};
 
     if (ventoy_debug) grub_printf("ventoy_cmd_initrd %d\n", ventoy_linux_argc);
 
@@ -1430,19 +1519,37 @@ ventoy_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
 
     if (ventoy_debug) grub_printf("membuf=%s\n", buf);
 
-    newargv[0] = buf;
+    ventoy_extra_initrd_list[ventoy_extra_initrd_num++] = grub_strdup(buf);
+
+    file = grub_env_get("vtoy_img_part_file");
+    if (file)
+    {
+        ventoy_extra_initrd_list[ventoy_extra_initrd_num++] = grub_strdup(file);
+    }
+
     for (i = 0; i < argc; i++)
     {
-        newargv[i + 1] = argv[i];
+        ventoy_extra_initrd_list[ventoy_extra_initrd_num++] = grub_strdup(argv[i]);
     }
 
     ventoy_initrd_called = 1;
+
+    if (ventoy_debug)
+    {
+        grub_printf("========== initrd list ==========\n");
+        for (i = 0; i < ventoy_extra_initrd_num; i++)
+        {
+            grub_printf("%s\n", ventoy_extra_initrd_list[i]);
+        }
+        grub_printf("=================================\n");
+    }
     
-    return grub_cmd_initrd(cmd, argc + 1, newargv);
+    return grub_cmd_initrd(cmd, ventoy_extra_initrd_num, ventoy_extra_initrd_list);
 }
 
 
-static grub_command_t cmd_linux, cmd_initrd, cmd_linuxefi, cmd_initrdefi, cmd_set_bootopt, cmd_unset_bootopt;
+static grub_command_t cmd_linux, cmd_initrd, cmd_linuxefi, cmd_initrdefi;
+static grub_command_t cmd_set_bootopt, cmd_unset_bootopt, cmd_extra_initrd_append, cmd_extra_initrd_reset;
 
 GRUB_MOD_INIT(linux)
 {
@@ -1457,6 +1564,9 @@ GRUB_MOD_INIT(linux)
 				      0, N_("Load initrd."));
   cmd_set_bootopt = grub_register_command ("vt_set_boot_opt", grub_cmd_set_boot_opt, 0, N_("set ext boot opt"));
   cmd_unset_bootopt = grub_register_command ("vt_unset_boot_opt", grub_cmd_unset_boot_opt, 0, N_("unset ext boot opt"));
+  
+  cmd_extra_initrd_append = grub_register_command ("vt_img_extra_initrd_append", grub_cmd_extra_initrd_append, 0, N_(""));
+  cmd_extra_initrd_reset = grub_register_command ("vt_img_extra_initrd_reset", grub_cmd_extra_initrd_reset, 0, N_(""));
 
   ventoy_linux_args = grub_zalloc(sizeof(char *) * LINUX_MAX_ARGC);
 
diff --git a/GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy.c b/GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy.c
index 86ec5d60..51b81e6d 100644
--- a/GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy.c
+++ b/GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy.c
@@ -54,6 +54,7 @@ int g_valid_initrd_count = 0;
 int g_default_menu_mode = 0;
 int g_filt_dot_underscore_file = 0;
 static grub_file_t g_old_file;
+static int g_ventoy_last_entry_back;
 
 char g_iso_path[256];
 char g_img_swap_tmp_buf[1024];
@@ -92,6 +93,9 @@ static int g_tree_script_pos = 0;
 static char *g_list_script_buf = NULL;
 static int g_list_script_pos = 0;
 
+static char *g_part_list_buf = NULL;
+static int g_part_list_pos = 0;
+
 static const char *g_menu_class[] = 
 {
     "vtoyiso", "vtoywim", "vtoyefi", "vtoyimg"
@@ -1812,6 +1816,7 @@ int ventoy_check_block_list(grub_file_t file, ventoy_img_chunk_list *chunklist,
 int ventoy_get_block_list(grub_file_t file, ventoy_img_chunk_list *chunklist, grub_disk_addr_t start)
 {
     int fs_type;
+    int len;
     grub_uint32_t i = 0;
     grub_uint32_t sector = 0;
     grub_uint32_t count = 0;
@@ -1856,6 +1861,27 @@ int ventoy_get_block_list(grub_file_t file, ventoy_img_chunk_list *chunklist, gr
         }
     }
 
+    len = (int)grub_strlen(file->name);
+    if (grub_strncasecmp(file->name + len - 4, ".img", 4) == 0)
+    {
+        for (i = 0; i < chunklist->cur_chunk; i++)
+        {
+            count = chunklist->chunk[i].disk_end_sector + 1 - chunklist->chunk[i].disk_start_sector;
+            if (count < 4)
+            {
+                count = 1;
+            }
+            else
+            {
+                count >>= 2;
+            }
+            
+            chunklist->chunk[i].img_start_sector = sector;
+            chunklist->chunk[i].img_end_sector = sector + count - 1;
+            sector += count;
+        }
+    }
+
     return 0;
 }
 
@@ -2498,6 +2524,62 @@ end:
     return 0;
 }
 
+static int ventoy_img_partition_callback (struct grub_disk *disk, const grub_partition_t partition, void *data)
+{
+    (void)disk;
+    (void)data;
+
+    g_part_list_pos += grub_snprintf(g_part_list_buf + g_part_list_pos, VTOY_MAX_SCRIPT_BUF - g_part_list_pos,
+        "0 %llu linear /dev/ventoy %llu\n",
+        (ulonglong)partition->len, (ulonglong)partition->start);
+        
+    return 0;
+}
+
+static grub_err_t ventoy_cmd_img_part_info(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    char *device_name = NULL;
+    grub_device_t dev = NULL;
+    char buf[64];
+    
+    (void)ctxt;
+
+    g_part_list_pos = 0;
+    grub_env_unset("vtoy_img_part_file");
+
+    if (argc != 1)
+    {
+        return 1;
+    }
+
+    device_name = grub_file_get_device_name(args[0]);
+    if (!device_name)
+    {
+        debug("ventoy_cmd_img_part_info failed, %s\n", args[0]);
+        goto end;
+    }
+
+    dev = grub_device_open(device_name);
+    if (!dev)
+    {
+        debug("grub_device_open failed, %s\n", device_name);
+        goto end;        
+    }
+
+    grub_partition_iterate(dev->disk, ventoy_img_partition_callback, NULL);
+
+    grub_snprintf(buf, sizeof(buf), "newc:vtoy_dm_table:mem:0x%llx:size:%d", (ulonglong)(ulong)g_part_list_buf, g_part_list_pos);
+    grub_env_set("vtoy_img_part_file", buf);
+
+end:
+
+    check_free(device_name, grub_free);
+    check_free(dev, grub_device_close);
+    
+    return 0;
+}
+
+
 static grub_err_t ventoy_cmd_file_strstr(grub_extcmd_context_t ctxt, int argc, char **args)
 {
     int rc = 1;
@@ -2645,6 +2727,108 @@ static grub_err_t ventoy_cmd_img_unhook_root(grub_extcmd_context_t ctxt, int arg
     return 0;
 }
 
+static grub_err_t ventoy_cmd_push_last_entry(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    (void)ctxt;
+    (void)argc;
+    (void)args;
+
+    g_ventoy_last_entry_back = g_ventoy_last_entry;
+    g_ventoy_last_entry = -1;
+    
+    return 0;
+}
+
+static grub_err_t ventoy_cmd_pop_last_entry(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    (void)ctxt;
+    (void)argc;
+    (void)args;
+
+    g_ventoy_last_entry = g_ventoy_last_entry_back;
+    
+    return 0;
+}
+
+static int ventoy_lib_module_callback(const char *filename, const struct grub_dirhook_info *info, void *data)
+{
+    const char *pos = filename + 1;
+
+    if (info->dir)
+    {
+        while (*pos)
+        {
+            if (*pos == '.')
+            {
+                if ((*(pos - 1) >= '0' && *(pos - 1) <= '9') && (*(pos + 1) >= '0' && *(pos + 1) <= '9'))
+                {
+                    grub_strncpy((char *)data, filename, 128);
+                    return 1;
+                }
+            }
+            pos++;
+        }
+    }
+
+    return 0;
+}
+
+static grub_err_t ventoy_cmd_lib_module_ver(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    int rc = 1;
+    char *device_name = NULL;
+    grub_device_t dev = NULL;
+    grub_fs_t fs = NULL;
+    char buf[128] = {0};
+    
+    (void)ctxt;
+
+    if (argc != 3)
+    {
+        debug("ventoy_cmd_lib_module_ver, invalid param num %d\n", argc);
+        return 1;
+    }
+
+    debug("ventoy_cmd_lib_module_ver %s %s %s\n", args[0], args[1], args[2]);
+
+    device_name = grub_file_get_device_name(args[0]);
+    if (!device_name)
+    {
+        debug("grub_file_get_device_name failed, %s\n", args[0]);
+        goto end;
+    }
+
+    dev = grub_device_open(device_name);
+    if (!dev)
+    {
+        debug("grub_device_open failed, %s\n", device_name);
+        goto end;        
+    }
+
+    fs = grub_fs_probe(dev);
+    if (!fs)
+    {
+        debug("grub_fs_probe failed, %s\n", device_name);
+        goto end;
+    }
+
+    fs->fs_dir(dev, args[1], ventoy_lib_module_callback, buf);
+
+    if (buf[0])
+    {
+        ventoy_set_env(args[2], buf);        
+    }
+    
+    rc = 0;
+    
+end:
+
+    check_free(device_name, grub_free);
+    check_free(dev, grub_device_close);
+    
+    return rc;
+}
+
 grub_uint64_t ventoy_grub_get_file_size(const char *fmt, ...)
 {
     grub_uint64_t size = 0;
@@ -2747,6 +2931,7 @@ static int ventoy_env_init(void)
 
     grub_env_set("vtdebug_flag", "");
 
+    g_part_list_buf = grub_malloc(VTOY_PART_BUF_LEN);
     g_tree_script_buf = grub_malloc(VTOY_MAX_SCRIPT_BUF);
     g_list_script_buf = grub_malloc(VTOY_MAX_SCRIPT_BUF);
 
@@ -2785,6 +2970,9 @@ static cmd_para ventoy_cmds[] =
 
     { "vt_load_cpio", ventoy_cmd_load_cpio, 0, NULL, "", "", NULL },
     { "vt_trailer_cpio", ventoy_cmd_trailer_cpio, 0, NULL, "", "", NULL },
+    { "vt_push_last_entry", ventoy_cmd_push_last_entry, 0, NULL, "", "", NULL },
+    { "vt_pop_last_entry", ventoy_cmd_pop_last_entry, 0, NULL, "", "", NULL },
+    { "vt_get_lib_module_ver", ventoy_cmd_lib_module_ver, 0, NULL, "", "", NULL },
     
     { "vt_find_first_bootable_hd", ventoy_cmd_find_bootable_hdd, 0, NULL, "", "", NULL },
     { "vt_dump_menu", ventoy_cmd_dump_menu, 0, NULL, "", "", NULL },
@@ -2834,6 +3022,7 @@ static cmd_para ventoy_cmds[] =
     
     { "vt_1st_line", ventoy_cmd_read_1st_line, 0, NULL, "", "", NULL },
     { "vt_file_strstr", ventoy_cmd_file_strstr, 0, NULL, "", "", NULL },
+    { "vt_img_part_info", ventoy_cmd_img_part_info, 0, NULL, "", "", NULL },
 
     
     { "vt_parse_iso_volume", ventoy_cmd_parse_volume, 0, NULL, "", "", NULL },
diff --git a/GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_def.h b/GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_def.h
index a514f6b5..79706e22 100644
--- a/GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_def.h
+++ b/GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_def.h
@@ -23,6 +23,8 @@
 
 #define VTOY_MAX_SCRIPT_BUF    (4 * 1024 * 1024)
 
+#define VTOY_PART_BUF_LEN  (128 * 1024)
+
 #define VTOY_FILT_MIN_FILE_SIZE  32768
 
 #define VTOY_SIZE_1GB     1073741824
diff --git a/GRUB2/MOD_SRC/grub-2.04/install.sh b/GRUB2/MOD_SRC/grub-2.04/install.sh
index 446816d5..bca8d669 100644
--- a/GRUB2/MOD_SRC/grub-2.04/install.sh
+++ b/GRUB2/MOD_SRC/grub-2.04/install.sh
@@ -12,10 +12,10 @@ make install
 PATH=$PATH:$VT_DIR/GRUB2/INSTALL/bin/:$VT_DIR/GRUB2/INSTALL/sbin/
 
 net_modules_legacy="net tftp http"
-all_modules_legacy="date drivemap blocklist vga_text ntldr search at_keyboard usb_keyboard  gcry_md5 hashsum gzio xzio lzopio lspci pci ext2 xfs ventoy chain read halt iso9660 linux16 test true sleep reboot echo videotest videoinfo videotest_checksum video_colors video_cirrus video_bochs vga vbe video_fb font video gettext extcmd terminal  linux minicmd help configfile tr trig boot biosdisk disk ls tar squash4 password_pbkdf2 all_video png jpeg part_gpt part_msdos fat exfat ntfs loopback gzio normal  udf gfxmenu gfxterm gfxterm_background gfxterm_menu"
+all_modules_legacy="date drivemap blocklist newc vga_text ntldr search at_keyboard usb_keyboard  gcry_md5 hashsum gzio xzio lzopio lspci pci ext2 xfs ventoy chain read halt iso9660 linux16 test true sleep reboot echo videotest videoinfo videotest_checksum video_colors video_cirrus video_bochs vga vbe video_fb font video gettext extcmd terminal  linux minicmd help configfile tr trig boot biosdisk disk ls tar squash4 password_pbkdf2 all_video png jpeg part_gpt part_msdos fat exfat ntfs loopback gzio normal  udf gfxmenu gfxterm gfxterm_background gfxterm_menu"
 
 net_modules_uefi="efinet net tftp http"
-all_modules_uefi="blocklist ventoy test search at_keyboard usb_keyboard  gcry_md5 hashsum gzio xzio lzopio ext2 xfs read halt sleep serial terminfo png password_pbkdf2 gcry_sha512 pbkdf2 part_gpt part_msdos ls tar squash4 loopback part_apple minicmd diskfilter linux relocator jpeg iso9660 udf hfsplus halt acpi mmap gfxmenu video_colors trig bitmap_scale gfxterm bitmap font fat exfat ntfs fshelp efifwsetup reboot echo configfile normal terminal gettext chain  priority_queue bufio datetime cat extcmd crypto gzio boot all_video efi_gop efi_uga video_bochs video_cirrus video video_fb gfxterm_background gfxterm_menu"
+all_modules_uefi="blocklist ventoy test newc search at_keyboard usb_keyboard  gcry_md5 hashsum gzio xzio lzopio ext2 xfs read halt sleep serial terminfo png password_pbkdf2 gcry_sha512 pbkdf2 part_gpt part_msdos ls tar squash4 loopback part_apple minicmd diskfilter linux relocator jpeg iso9660 udf hfsplus halt acpi mmap gfxmenu video_colors trig bitmap_scale gfxterm bitmap font fat exfat ntfs fshelp efifwsetup reboot echo configfile normal terminal gettext chain  priority_queue bufio datetime cat extcmd crypto gzio boot all_video efi_gop efi_uga video_bochs video_cirrus video video_fb gfxterm_background gfxterm_menu"
 
 if [ "$1" = "uefi" ]; then
     all_modules="$net_modules_uefi $all_modules_uefi "
diff --git a/IMG/cpio/ventoy/hook/debian/udev_disk_hook.sh b/IMG/cpio/ventoy/hook/debian/udev_disk_hook.sh
index 8cbda0e5..77ccfba6 100644
--- a/IMG/cpio/ventoy/hook/debian/udev_disk_hook.sh
+++ b/IMG/cpio/ventoy/hook/debian/udev_disk_hook.sh
@@ -43,6 +43,12 @@ ventoy_os_install_dmsetup() {
     # install md-modules
     LINE=$($GREP ' md-modules.*\.udeb'  $VTOY_PATH/iso_file_list)
     if [ $? -eq 0 ]; then
+        LINTCNT=$($GREP -c ' md-modules.*\.udeb'  $VTOY_PATH/iso_file_list)
+        if [ $LINTCNT -gt 1 ]; then
+            vtlog "more than one pkgs, need to filter..."
+            VER=$($BUSYBOX_PATH/uname -r)
+            LINE=$($GREP ' md-modules.*\.udeb'  $VTOY_PATH/iso_file_list | $GREP $VER)
+        fi
         install_udeb_from_line "$LINE" ${vt_usb_disk} 
     fi
 
@@ -83,6 +89,8 @@ if is_ventoy_hook_finished || not_ventoy_disk "${1:0:-1}"; then
     exit 0
 fi
 
+vtlog "==== $0 $* ====" 
+
 dmsetup_path=$(ventoy_find_bin_path dmsetup)
 if [ -z "$dmsetup_path" ]; then
     ventoy_os_install_dmsetup "/dev/${1:0:-1}"
diff --git a/IMG/cpio/ventoy/hook/debian/ventoy-hook.sh b/IMG/cpio/ventoy/hook/debian/ventoy-hook.sh
index f23aef65..2186f3c8 100644
--- a/IMG/cpio/ventoy/hook/debian/ventoy-hook.sh
+++ b/IMG/cpio/ventoy/hook/debian/ventoy-hook.sh
@@ -64,6 +64,10 @@ ventoy_get_debian_distro() {
         echo 'linuxconsole'; return
     fi
     
+    if $GREP -q 'vyos' /proc/version; then
+        echo 'vyos'; return
+    fi
+    
     echo 'default'
 }
 
diff --git a/IMG/cpio/ventoy/hook/debian/vyos-disk.sh b/IMG/cpio/ventoy/hook/debian/vyos-disk.sh
new file mode 100644
index 00000000..468adfd9
--- /dev/null
+++ b/IMG/cpio/ventoy/hook/debian/vyos-disk.sh
@@ -0,0 +1,49 @@
+#!/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
+
+if is_ventoy_hook_finished; then
+    exit 0
+fi
+
+vtlog "####### $0 $* ########"
+
+VTPATH_OLD=$PATH; PATH=$BUSYBOX_PATH:$VTOY_PATH/tool:$PATH
+
+wait_for_usb_disk_ready
+
+vtdiskname=$(get_ventoy_disk_name)
+if [ "$vtdiskname" = "unknown" ]; then
+    vtlog "ventoy disk not found"
+    PATH=$VTPATH_OLD
+    exit 0
+fi
+
+mkdir -p /live/vtoyfuse /live/vtoyiso
+
+modprobe fuse
+vtoydm -p -f $VTOY_PATH/ventoy_image_map -d $vtdiskname > $VTOY_PATH/ventoy_dm_table
+vtoy_fuse_iso -f $VTOY_PATH/ventoy_dm_table -m /live/vtoyfuse
+
+mount -t iso9660  /live/vtoyfuse/ventoy.iso  /live/vtoyiso
+
+PATH=$VTPATH_OLD
+
+set_ventoy_hook_finish
diff --git a/IMG/cpio/ventoy/hook/debian/vyos-hook.sh b/IMG/cpio/ventoy/hook/debian/vyos-hook.sh
new file mode 100644
index 00000000..007f823b
--- /dev/null
+++ b/IMG/cpio/ventoy/hook/debian/vyos-hook.sh
@@ -0,0 +1,25 @@
+#!/ventoy/busybox/sh
+#************************************************************************************
+# Copyright (c) 2020, longpanda <admin@ventoy.net>
+# 
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 3 of the
+# License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# 
+#************************************************************************************
+
+if [ -e /init ] && $GREP -q '^mountroot$' /init; then
+    echo "Here before mountroot ..." >> $VTLOG
+    $SED  "/^mountroot$/i\\$BUSYBOX_PATH/sh $VTOY_PATH/hook/debian/vyos-disk.sh"  -i /init
+    $SED  "/^mountroot$/i\\export LIVE_MEDIA=/live/vtoyiso"  -i /init
+    #$SED  "/^mountroot$/i\\exec /ventoy/busybox/sh"  -i /init
+fi
diff --git a/IMG/cpio/ventoy/hook/hyperbola/ventoy-disk.sh b/IMG/cpio/ventoy/hook/hyperbola/ventoy-disk.sh
new file mode 100644
index 00000000..356c77f8
--- /dev/null
+++ b/IMG/cpio/ventoy/hook/hyperbola/ventoy-disk.sh
@@ -0,0 +1,48 @@
+#!/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 $* ############"
+
+if is_ventoy_hook_finished; then
+    exit 0
+fi
+
+wait_for_usb_disk_ready
+
+vtdiskname=$(get_ventoy_disk_name)
+if [ "$vtdiskname" = "unknown" ]; then
+    vtlog "ventoy disk not found"
+    exit 0
+fi
+
+ventoy_udev_disk_common_hook "${vtdiskname#/dev/}2" "noreplace"
+
+if [ -n "$1" ]; then
+    blkdev_num=$($VTOY_PATH/tool/dmsetup ls | grep ventoy | sed 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1:\2/')
+    vtDM=$(ventoy_find_dm_id ${blkdev_num})
+    
+    vtlog "ln -s /dev/$vtDM $1"
+    ln -s /dev/$vtDM "$1"
+fi 
+
+# OK finish
+set_ventoy_hook_finish
+
diff --git a/IMG/cpio/ventoy/hook/hyperbola/ventoy-hook.sh b/IMG/cpio/ventoy/hook/hyperbola/ventoy-hook.sh
new file mode 100644
index 00000000..aebe57ad
--- /dev/null
+++ b/IMG/cpio/ventoy/hook/hyperbola/ventoy-hook.sh
@@ -0,0 +1,44 @@
+#!/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/>.
+# 
+#************************************************************************************
+
+. $VTOY_PATH/hook/ventoy-os-lib.sh
+
+if $GREP -q '^"$mount_handler"' /init; then
+    echo 'use mount_handler ...' >> $VTLOG
+    $SED "/^\"\$mount_handler\"/i\ $BUSYBOX_PATH/sh $VTOY_PATH/hook/hyperbola/ventoy-disk.sh \"\$hyperisodevice\"" -i /init
+    
+    if [ -f /hooks/parabolaiso ]; then
+        $SED  '/while ! poll_device "${dev}"/a\    if /ventoy/busybox/sh /ventoy/hook/hyperbola/ventoy-timeout.sh ${dev}; then break; fi'   -i /hooks/hyperiso
+    fi
+    
+else
+    # some archlinux initramfs doesn't contain device-mapper udev rules file
+    ARCH_UDEV_DIR=$(ventoy_get_udev_conf_dir)
+    if [ -s "$ARCH_UDEV_DIR/13-dm-disk.rules" ]; then
+        echo 'dm-disk rule exist' >> $VTLOG
+    else
+        echo 'Copy dm-disk rule file' >> $VTLOG
+        $CAT $VTOY_PATH/hook/default/13-dm-disk.rules > "$ARCH_UDEV_DIR/13-dm-disk.rules"
+    fi
+
+    # use default proc
+    ventoy_systemd_udevd_work_around
+
+    ventoy_add_udev_rule "$VTOY_PATH/hook/default/udev_disk_hook.sh %k"
+fi
diff --git a/IMG/cpio/ventoy/hook/hyperbola/ventoy-timeout.sh b/IMG/cpio/ventoy/hook/hyperbola/ventoy-timeout.sh
new file mode 100644
index 00000000..fec9cc07
--- /dev/null
+++ b/IMG/cpio/ventoy/hook/hyperbola/ventoy-timeout.sh
@@ -0,0 +1,36 @@
+#!/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 $* ############"
+
+blkdev_num=$($VTOY_PATH/tool/dmsetup ls | grep ventoy | sed 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1:\2/')
+vtDM=$(ventoy_find_dm_id ${blkdev_num})
+
+if [ -b /dev/$vtDM ]; then
+    vtlog "ln -s /dev/$vtDM $1"
+    ln -s /dev/$vtDM "$1"
+    exit 0
+else
+    vtlog "Device-mapper not found"
+    exit 1
+fi
+
+
diff --git a/IMG/cpio/ventoy/hook/ventoy-hook-lib.sh b/IMG/cpio/ventoy/hook/ventoy-hook-lib.sh
index 2da5f079..c9bf3ae2 100644
--- a/IMG/cpio/ventoy/hook/ventoy-hook-lib.sh
+++ b/IMG/cpio/ventoy/hook/ventoy-hook-lib.sh
@@ -436,8 +436,14 @@ ventoy_udev_disk_common_hook() {
     
     VTDISK="${1:0:-1}"
     
+    if [ -e /vtoy/vtoy ]; then
+        VTRWMOD=""
+    else
+        VTRWMOD="--readonly"
+    fi
+    
     # create device mapper for iso image file
-    if create_ventoy_device_mapper "/dev/$VTDISK" --readonly; then
+    if create_ventoy_device_mapper "/dev/$VTDISK" $VTRWMOD; then
         vtlog "==== create ventoy device mapper success ===="
     else
         vtlog "==== create ventoy device mapper failed ===="
@@ -453,7 +459,7 @@ ventoy_udev_disk_common_hook() {
             done
         fi
         
-        if create_ventoy_device_mapper "/dev/$VTDISK" --readonly; then
+        if create_ventoy_device_mapper "/dev/$VTDISK" $VTRWMOD; then
             vtlog "==== create ventoy device mapper success after retry ===="
         else
             vtlog "==== create ventoy device mapper failed after retry ===="
@@ -473,6 +479,24 @@ ventoy_udev_disk_common_hook() {
     fi
 }
 
+ventoy_create_dev_ventoy_part() {   
+    blkdev_num=$($VTOY_PATH/tool/dmsetup ls | $GREP ventoy | $SED 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1 \2/')
+    $BUSYBOX_PATH/mknod -m 0666 /dev/ventoy b $blkdev_num
+    
+    if [ -e /vtoy_dm_table ]; then
+        vtPartid=1
+        
+        $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${vtPartid}
+            
+            blkdev_num=$($VTOY_PATH/tool/dmsetup ls | $GREP ventoy${vtPartid} | $SED 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1 \2/')
+            $BUSYBOX_PATH/mknod -m 0666 /dev/ventoy${vtPartid} b $blkdev_num
+            
+            vtPartid=$(expr $vtPartid + 1)
+        done        
+    fi
+}
 
 is_inotify_ventoy_part() {
     if echo $1 | $GREP -q "2$"; then
diff --git a/IMG/cpio/ventoy/loop/easyos/ventoy-disk.sh b/IMG/cpio/ventoy/loop/easyos/ventoy-disk.sh
new file mode 100644
index 00000000..2fa00497
--- /dev/null
+++ b/IMG/cpio/ventoy/loop/easyos/ventoy-disk.sh
@@ -0,0 +1,53 @@
+#!/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
+
+if is_ventoy_hook_finished; then
+    exit 0
+fi
+
+vtlog "####### $0 $* ########"
+
+VTPATH_OLD=$PATH; PATH=$BUSYBOX_PATH:$VTOY_PATH/tool:$PATH
+
+$BUSYBOX_PATH/insmod $VTOY_PATH/modules/dax.ko
+$BUSYBOX_PATH/insmod $VTOY_PATH/modules/dm-mod.ko
+
+wait_for_usb_disk_ready
+
+vtdiskname=$(get_ventoy_disk_name)
+if [ "$vtdiskname" = "unknown" ]; then
+    vtlog "ventoy disk not found"
+    PATH=$VTPATH_OLD
+    exit 0
+fi
+
+ventoy_udev_disk_common_hook "${vtdiskname#/dev/}2" "noreplace"
+
+blkdev_num=$($VTOY_PATH/tool/dmsetup ls | grep ventoy | sed 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1:\2/')
+vtDM=$(ventoy_find_dm_id ${blkdev_num})
+echo -n $vtDM > /ventoy/vtDM
+
+ventoy_create_dev_ventoy_part
+mdev -s
+
+PATH=$VTPATH_OLD
+
+set_ventoy_hook_finish
diff --git a/IMG/cpio/ventoy/loop/easyos/ventoy-hook.sh b/IMG/cpio/ventoy/loop/easyos/ventoy-hook.sh
new file mode 100644
index 00000000..7310b0d7
--- /dev/null
+++ b/IMG/cpio/ventoy/loop/easyos/ventoy-hook.sh
@@ -0,0 +1,32 @@
+#!/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/>.
+# 
+#************************************************************************************
+
+. $VTOY_PATH/hook/ventoy-os-lib.sh
+
+$SED "/find drives/i $BUSYBOX_PATH/sh $VTOY_PATH/loop/easyos/ventoy-disk.sh; vtDM=\$(cat /ventoy/vtDM)" -i /init
+
+$SED "1a boot_dev=ventoy1;wkg_dev=ventoy2" -i /init
+
+#check for ssd will read /sys/block/ventoy, will no exist, need a workaround
+$SED "s#/sys/block/\${WKG_DRV}/#/sys/block/\$vtDM/#g"  -i /init
+
+#skip the resizing process, can't resizing partition
+$SED "s#640M#0M#g"  -i /init
+
+
diff --git a/IMG/cpio/ventoy/loop/openwrt/ventoy-disk.sh b/IMG/cpio/ventoy/loop/openwrt/ventoy-disk.sh
new file mode 100644
index 00000000..722c1ca3
--- /dev/null
+++ b/IMG/cpio/ventoy/loop/openwrt/ventoy-disk.sh
@@ -0,0 +1,50 @@
+#!/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
+
+if is_ventoy_hook_finished; then
+    exit 0
+fi
+
+vtlog "####### $0 $* ########"
+
+VTPATH_OLD=$PATH; PATH=$BUSYBOX_PATH:$VTOY_PATH/tool:$PATH
+
+wait_for_usb_disk_ready
+
+vtdiskname=$(get_ventoy_disk_name)
+if [ "$vtdiskname" = "unknown" ]; then
+    vtlog "ventoy disk not found"
+    PATH=$VTPATH_OLD
+    exit 0
+fi
+
+ventoy_udev_disk_common_hook "${vtdiskname#/dev/}2" "noreplace"
+
+blkdev_num=$($VTOY_PATH/tool/dmsetup ls | grep ventoy | sed 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1:\2/')
+vtDM=$(ventoy_find_dm_id ${blkdev_num})
+echo -n $vtDM > /ventoy/vtDM
+
+ventoy_create_dev_ventoy_part
+mdev -s
+
+PATH=$VTPATH_OLD
+
+set_ventoy_hook_finish
diff --git a/IMG/cpio/ventoy/loop/openwrt/ventoy-hook.sh b/IMG/cpio/ventoy/loop/openwrt/ventoy-hook.sh
new file mode 100644
index 00000000..d9785854
--- /dev/null
+++ b/IMG/cpio/ventoy/loop/openwrt/ventoy-hook.sh
@@ -0,0 +1,30 @@
+#!/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/>.
+# 
+#************************************************************************************
+
+. $VTOY_PATH/hook/ventoy-os-lib.sh
+
+$BUSYBOX_PATH/mkdir /sys
+$BUSYBOX_PATH/mount -t proc proc /proc
+$BUSYBOX_PATH/mount -t sysfs sys /sys
+
+$BUSYBOX_PATH/mdev -s
+
+#$BUSYBOX_PATH/sh $VTOY_PATH/loop/openwrt/ventoy-disk.sh
+
+exec $BUSYBOX_PATH/sh
diff --git a/IMG/cpio/ventoy/loop/volumio/ventoy-disk.sh b/IMG/cpio/ventoy/loop/volumio/ventoy-disk.sh
new file mode 100644
index 00000000..8b249255
--- /dev/null
+++ b/IMG/cpio/ventoy/loop/volumio/ventoy-disk.sh
@@ -0,0 +1,46 @@
+#!/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
+
+if is_ventoy_hook_finished; then
+    exit 0
+fi
+
+vtlog "####### $0 $* ########"
+
+VTPATH_OLD=$PATH; PATH=$BUSYBOX_PATH:$VTOY_PATH/tool:$PATH
+
+wait_for_usb_disk_ready
+
+vtdiskname=$(get_ventoy_disk_name)
+if [ "$vtdiskname" = "unknown" ]; then
+    vtlog "ventoy disk not found"
+    PATH=$VTPATH_OLD
+    exit 0
+fi
+
+ventoy_udev_disk_common_hook "${vtdiskname#/dev/}2" "noreplace"
+
+ventoy_create_dev_ventoy_part
+mdev -s
+
+PATH=$VTPATH_OLD
+
+set_ventoy_hook_finish
diff --git a/IMG/cpio/ventoy/loop/volumio/ventoy-hook.sh b/IMG/cpio/ventoy/loop/volumio/ventoy-hook.sh
new file mode 100644
index 00000000..7b616d29
--- /dev/null
+++ b/IMG/cpio/ventoy/loop/volumio/ventoy-hook.sh
@@ -0,0 +1,28 @@
+#!/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/>.
+# 
+#************************************************************************************
+
+. $VTOY_PATH/hook/ventoy-os-lib.sh
+
+$SED "/^CMDLINE=/i $BUSYBOX_PATH/sh $VTOY_PATH/loop/volumio/ventoy-disk.sh" -i /init
+
+#skip the resizing process
+$SED "/^FREESIZE=/a FREESIZE=0" -i /init
+
+$SED "/exec.*switch_root/i $SED 's@\\\\(.*/boot \\\\)@#\\\\1@' -i /mnt/ext/union/etc/fstab" -i /init
+
diff --git a/IMG/cpio/ventoy/ventoy_chain.sh b/IMG/cpio/ventoy/ventoy_chain.sh
index 2c52e60e..d21d910c 100644
--- a/IMG/cpio/ventoy/ventoy_chain.sh
+++ b/IMG/cpio/ventoy/ventoy_chain.sh
@@ -227,6 +227,10 @@ ventoy_get_os_type() {
         echo 'vine'; return
     fi
     
+    if $GREP -q 'hyperbola' /proc/cmdline; then
+        echo 'hyperbola'; return
+    fi
+    
     echo "default"
 }
 
diff --git a/IMG/cpio/ventoy/ventoy_loop.sh b/IMG/cpio/ventoy/ventoy_loop.sh
index bbb7c259..a1be76dc 100644
--- a/IMG/cpio/ventoy/ventoy_loop.sh
+++ b/IMG/cpio/ventoy/ventoy_loop.sh
@@ -37,10 +37,30 @@ for i in $vtcmdline; do
     fi
 done
 
+####################################################################
+#                                                                  #
+# Step 2 : Process ko                                              #
+#                                                                  #
+####################################################################
+$BUSYBOX_PATH/mkdir -p /ventoy/modules
+$BUSYBOX_PATH/ls -1a / | $EGREP '\.ko$|\.ko.[gx]z$' | while read vtline; do
+    if [ "${vtline:0:1}" = "." ]; then
+        $BUSYBOX_PATH/mv /${vtline} /ventoy/modules/${vtline:1}
+    else
+        $BUSYBOX_PATH/mv /${vtline} /ventoy/modules/
+    fi
+done
+
+if [ -e /vtloopex.tar.xz ]; then
+    echo "extract vtloopex ..." >> $VTLOG
+    $BUSYBOX_PATH/tar -xJf /vtloopex.tar.xz -C $VTOY_PATH/
+    $BUSYBOX_PATH/rm -f /vtloopex.tar.xz
+fi
+
 
 ####################################################################
 #                                                                  #
-# Step 2 : Do OS specific hook                                     #
+# Step 3 : Do OS specific hook                                     #
 #                                                                  #
 ####################################################################
 ventoy_get_os_type() {
@@ -56,6 +76,22 @@ ventoy_get_os_type() {
         echo 'endless'; return
     fi
     
+    if $GREP -q 'OpenWrt' /proc/version; then
+        echo 'openwrt'; return
+    fi
+    
+    if [ -e /BOOT_SPECS ]; then
+        if $GREP -q 'easyos' /BOOT_SPECS; then
+            echo 'easyos'; return
+        fi
+    fi
+    
+    if [ -e /etc/os-release ]; then
+        if $GREP -q 'volumio' /etc/os-release; then
+            echo 'volumio'; return
+        fi
+    fi
+    
     echo "default"
 }
 
@@ -68,7 +104,7 @@ fi
 
 ####################################################################
 #                                                                  #
-# Step 3 : Check for debug break                                   #
+# Step 4 : Check for debug break                                   #
 #                                                                  #
 ####################################################################
 if [ "$VTOY_BREAK_LEVEL" = "03" ] || [ "$VTOY_BREAK_LEVEL" = "13" ]; then
@@ -85,7 +121,7 @@ fi
 
 ####################################################################
 #                                                                  #
-# Step 3 : Hand over to real init                                  #
+# Step 5 : Hand over to real init                                  #
 #                                                                  #
 ####################################################################
 $BUSYBOX_PATH/umount /proc
diff --git a/IMG/mkloopex.sh b/IMG/mkloopex.sh
new file mode 100644
index 00000000..6b605b45
--- /dev/null
+++ b/IMG/mkloopex.sh
@@ -0,0 +1,27 @@
+#!/bin/bash
+
+VENTOY_PATH=$PWD/../
+
+rm -f vtloopex.cpio
+cp -a vtloopex vtloopex_tmp
+cd vtloopex_tmp
+
+
+for dir in $(ls); do
+    cd $dir    
+    tar -cJf vtloopex.tar.xz vtloopex    
+    rm -rf vtloopex
+    cd ..
+done
+
+find . | cpio -o -H newc>../vtloopex.cpio
+
+cd ..
+
+rm -rf vtloopex_tmp
+
+rm -f $VENTOY_PATH/INSTALL/ventoy/vtloopex.cpio
+cp -a vtloopex.cpio $VENTOY_PATH/INSTALL/ventoy/
+
+echo '======== SUCCESS ============='
+
diff --git a/IMG/vtloopex/openwrt/vtloopex/dm-mod/4.14.180/64/dm-mod.ko.xz b/IMG/vtloopex/openwrt/vtloopex/dm-mod/4.14.180/64/dm-mod.ko.xz
new file mode 100644
index 00000000..b201ca35
Binary files /dev/null and b/IMG/vtloopex/openwrt/vtloopex/dm-mod/4.14.180/64/dm-mod.ko.xz differ
diff --git a/INSTALL/grub/grub.cfg b/INSTALL/grub/grub.cfg
index 38ab7d4f..b85a31a8 100644
--- a/INSTALL/grub/grub.cfg
+++ b/INSTALL/grub/grub.cfg
@@ -206,6 +206,11 @@ function distro_specify_initrd_file_phase2 {
         if [ -f (loop)/parabola/boot/i686/parabolaiso.img ]; then 
             vt_linux_specify_initrd_file /parabola/boot/i686/parabolaiso.img
         fi
+    elif [ -f (loop)/hyperbola/boot/x86_64/hyperiso.img ]; then 
+        vt_linux_specify_initrd_file /hyperbola/boot/x86_64/hyperiso.img
+        if [ -f (loop)/hyperbola/boot/i686/hyperiso.img ]; then 
+            vt_linux_specify_initrd_file /hyperbola/boot/i686/hyperiso.img
+        fi
     elif [ -f (loop)/EFI/BOOT/initrd.img ]; then 
         #Qubes
         vt_linux_specify_initrd_file /EFI/BOOT/initrd.img
@@ -230,6 +235,14 @@ function ventoy_get_ghostbsd_ver {
     set vt_freebsd_ver=12.x
 }
 
+function ventoy_get_furybsd_ver {
+    if regexp "13\.[0-9]" "$2"; then
+        set vt_freebsd_ver=13.x
+    else
+        set vt_freebsd_ver=12.x
+    fi
+}
+
 function ventoy_get_freenas_ver {   
     set vt_freebsd_ver=11.x
 
@@ -250,6 +263,8 @@ function ventoy_freebsd_proc {
         ventoy_get_ghostbsd_ver $1 ${chosen_path}
     elif vt_strstr "$vt_volume_id" "FREENAS"; then
         ventoy_get_freenas_ver $1 ${chosen_path}   
+    elif vt_strstr "$vt_volume_id" "FURYBSD"; then
+        ventoy_get_furybsd_ver $1 ${chosen_path}   
     elif regexp "^13_[0-9]" "$vt_volume_id"; then
         set vt_freebsd_ver=13.x
     elif regexp "^12_[0-9]" "$vt_volume_id"; then
@@ -307,7 +322,7 @@ function ventoy_freebsd_proc {
     fi
     
     unset vt_unix_mod_path
-    for file in "/COPYRIGHT" "/FreeNAS-MANIFEST" "/version"; do   
+    for file in "/COPYRIGHT" "/FreeNAS-MANIFEST" "/version" "/etc/fstab"; do   
         if [ -e (loop)${file} ]; then                    
             set vt_unix_mod_path=${file}
             break
@@ -442,6 +457,8 @@ function uefi_linux_menu_func {
         elif [ -d (loop)/EFI/boot/entries ]; then
             if [ -f (loop)/parabola/boot/x86_64/parabolaiso.img ]; then
                 vt_add_replace_file 0 "EFI\\parabolaiso\\parabolaiso.img"
+            elif [ -f (loop)/hyperbola/boot/x86_64/hyperiso.img ]; then
+                vt_add_replace_file 0 "EFI\\hyperiso\\hyperiso.img"
             fi
         elif [ -e (loop)/syslinux/alt0/full.cz ]; then
             vt_add_replace_file 0 "EFI\\BOOT\\full.cz"            
@@ -833,20 +850,125 @@ function efi_unsupport_menuentry {
     common_unsupport_menuentry
 }
 
+#
+#============================================================#
+# IMG file boot process                                      #
+#============================================================#
+#
 
-function ventoy_img_busybox_ver {
-    set ventoy_busybox_ver=32
+
+function ventoy_img_easyos {
+    vt_load_cpio  $vtoy_path/ventoy.cpio  ${vt_chosen_path} ${vtoy_iso_part} "busybox=$ventoy_busybox_ver"
+    vt_trailer_cpio ${vtoy_iso_part} ${vt_chosen_path} noinit
     
-    if [ -e (vtimghd,2)/etc/openwrt_release ]; then
-        if vt_file_strstr (vtimghd,2)/etc/openwrt_release x86_64; then
-            set ventoy_busybox_ver=64
-        fi
-    fi    
+    loopback easysfs (vtimghd,1)/easy.sfs
+    vt_get_lib_module_ver (easysfs) /lib/modules/ vt_module_ver
+    
+    if [ -n "$vt_module_ver" ]; then        
+        for mod in "kernel/drivers/md/dm-mod.ko" "kernel/drivers/dax/dax.ko"; do
+            vt_img_extra_initrd_append  (easysfs)/lib/modules/$vt_module_ver/$mod
+        done
+    fi
+
+    ventoy_debug_pause
+
+    #boot image file
+    vt_set_boot_opt rdinit=/vtoy/vtoy
+    vt_img_hook_root
+    
+    syslinux_configfile (vtimghd,1)/syslinux.cfg
+    
+    vt_img_unhook_root
+    vt_unset_boot_opt
+    loopback -d easysfs
 }
 
-function img_common_menuentry {
+function ventoy_img_volumio {
+    vt_load_cpio  $vtoy_path/ventoy.cpio  ${vt_chosen_path} ${vtoy_iso_part} "busybox=$ventoy_busybox_ver"
+    vt_trailer_cpio ${vtoy_iso_part} ${vt_chosen_path} noinit
 
-    echo "To be implement"
+    ventoy_debug_pause
+
+    #boot image file
+    vt_set_boot_opt rdinit=/vtoy/vtoy imgpart=/dev/ventoy2 bootpart=/dev/ventoy1
+    vt_img_hook_root
+    
+    syslinux_configfile (vtimghd,1)/syslinux.cfg
+    
+    vt_img_unhook_root
+    vt_unset_boot_opt
+}
+
+function ventoy_img_fydeos {
+
+    set ventoy_busybox_ver=64
+
+    vt_load_cpio  $vtoy_path/ventoy.cpio  ${vt_chosen_path} ${vtoy_iso_part} "busybox=$ventoy_busybox_ver"
+    vt_trailer_cpio ${vtoy_iso_part} ${vt_chosen_path} noinit
+    
+    # loopback easysfs (vtimghd,1)/easy.sfs
+    # vt_get_lib_module_ver (easysfs) /lib/modules/ vt_module_ver
+    
+    # if [ -n "$vt_module_ver" ]; then        
+        # for mod in "kernel/drivers/md/dm-mod.ko" "kernel/drivers/dax/dax.ko"; do
+            # vt_img_extra_initrd_append  (easysfs)/lib/modules/$vt_module_ver/$mod
+        # done
+    # fi
+
+    ventoy_debug_pause
+
+    #boot image file
+    vt_set_boot_opt rdinit=/vtoy/vtoy
+    vt_img_hook_root
+    
+    set root=(vtimghd,12)
+    configfile (vtimghd,12)/efi/boot/grub.cfg
+    #syslinux_configfile (vtimghd,12)/syslinux/syslinux.cfg
+    
+    vt_img_unhook_root
+    vt_unset_boot_opt
+}
+
+
+function img_common_menuentry {
+    set ventoy_busybox_ver=32
+    
+    vt_chosen_img_path vt_chosen_path vt_chosen_size
+
+    if [ -d (vtimghd)/ ]; then
+        loopback -d vtimghd
+    fi
+
+    loopback vtimghd ${vtoy_iso_part}${vt_chosen_path}
+    vt_img_sector ${vtoy_iso_part}${vt_chosen_path}
+
+    vt_img_part_info (vtimghd)
+
+    set vtback_root=$root
+    ventoy_cli_console
+    vt_push_last_entry
+
+    vt_img_extra_initrd_reset
+
+    if [ -e (vtimghd,1)/easy.sfs ]; then
+        ventoy_img_easyos
+    elif [ -e (vtimghd,1)/volumio.initrd ]; then
+        ventoy_img_volumio
+    elif [ -e (vtimghd,3)/etc/os-release ]; then
+        if vt_file_strstr (vtimghd,3)/etc/os-release FydeOS; then
+            ventoy_img_fydeos
+        fi
+        
+    else
+        echo -e "\n This IMG file is NOT supported now. \n"
+        echo -e " 当前不支持启动此 IMG 文件 \n"    
+        echo -e "\npress ENTER to exit (请按 回车 键返回) ..."    
+        read vtInputKey        
+    fi
+
+    set root=$vtback_root
+    vt_pop_last_entry
+    ventoy_gui_console
 }
 
 function img_unsupport_menuentry {
diff --git a/INSTALL/tool/VentoyWorker.sh b/INSTALL/tool/VentoyWorker.sh
index ca8bd3fa..10f65643 100644
--- a/INSTALL/tool/VentoyWorker.sh
+++ b/INSTALL/tool/VentoyWorker.sh
@@ -116,7 +116,7 @@ if [ "$MODE" = "install" ]; then
         if parted -v > /dev/null 2>&1; then
             PARTTOOL='parted'
         else
-            vterr "parted is not found in the sysstem, Ventoy can't create new partition."
+            vterr "parted is not found in the system, Ventoy can't create new partition."
             exit 1
         fi
     else
@@ -125,7 +125,7 @@ if [ "$MODE" = "install" ]; then
         elif fdisk -v >/dev/null 2>&1; then
             PARTTOOL='fdisk'
         else
-            vterr "Both parted and fdisk are not found in the sysstem, Ventoy can't create new partition."
+            vterr "Both parted and fdisk are not found in the system, Ventoy can't create new partition."
             exit 1
         fi
     fi
@@ -144,7 +144,7 @@ if [ "$MODE" = "install" ]; then
     disk_sector_num=$(cat /sys/block/${DISK#/dev/}/size)
     disk_size_gb=$(expr $disk_sector_num / 2097152)
 
-    if [ $disk_sector_num -gt 4294967296 ] && [ -z $VTGPT ]; then
+    if [ $disk_sector_num -gt 4294967296 ] && [ -z "$VTGPT" ]; then
         vterr "$DISK is over 2TB size, MBR will not work on it."
         exit 1
     fi
diff --git a/INSTALL/ventoy/vtloopex.cpio b/INSTALL/ventoy/vtloopex.cpio
new file mode 100644
index 00000000..aefe96e1
Binary files /dev/null and b/INSTALL/ventoy/vtloopex.cpio differ
diff --git a/LANGUAGES/languages.ini b/LANGUAGES/languages.ini
index ae657056..cad4f86e 100644
Binary files a/LANGUAGES/languages.ini and b/LANGUAGES/languages.ini differ
diff --git a/VtoyTool/vtoydm.c b/VtoyTool/vtoydm.c
index aa460af0..8e748c25 100644
--- a/VtoyTool/vtoydm.c
+++ b/VtoyTool/vtoydm.c
@@ -486,8 +486,8 @@ static int vtoydm_print_linear_table(const char *img_map_file, const char *diskn
 {
     int i;
     int len;
+    uint32_t disk_sector_num;
     uint32_t sector_start;
-    uint32_t sector_num;
     ventoy_img_chunk *chunk = NULL;
     
     chunk = vtoydm_get_img_map_data(img_map_file, &len);
@@ -499,16 +499,16 @@ static int vtoydm_print_linear_table(const char *img_map_file, const char *diskn
     for (i = 0; i < len / sizeof(ventoy_img_chunk); i++)
     {
         sector_start = chunk[i].img_start_sector;
-        sector_num = chunk[i].img_end_sector - chunk[i].img_start_sector + 1;
+        disk_sector_num = (uint32_t)(chunk[i].disk_end_sector + 1 - chunk[i].disk_start_sector);
 
         /* TBD: to be more flexible */
         #if 0
         printf("%u %u linear %s %llu\n", 
-               (sector_start << 2), (sector_num << 2), 
+               (sector_start << 2), disk_sector_num, 
                diskname, (unsigned long long)chunk[i].disk_start_sector);
         #else
         printf("%u %u linear %s1 %llu\n", 
-               (sector_start << 2), (sector_num << 2), 
+               (sector_start << 2), disk_sector_num, 
                diskname, (unsigned long long)chunk[i].disk_start_sector - 2048);
         #endif
     }
diff --git a/VtoyTool/vtoytool/00/vtoytool_32 b/VtoyTool/vtoytool/00/vtoytool_32
index 1f9773b2..b923b8b1 100644
Binary files a/VtoyTool/vtoytool/00/vtoytool_32 and b/VtoyTool/vtoytool/00/vtoytool_32 differ
diff --git a/VtoyTool/vtoytool/00/vtoytool_64 b/VtoyTool/vtoytool/00/vtoytool_64
index 03cfc6eb..bffcf2ec 100644
Binary files a/VtoyTool/vtoytool/00/vtoytool_64 and b/VtoyTool/vtoytool/00/vtoytool_64 differ