diff --git a/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/Ventoy.c b/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/Ventoy.c
index 7a06d761..edb67691 100644
--- a/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/Ventoy.c
+++ b/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/Ventoy.c
@@ -273,19 +273,33 @@ static int ventoy_update_image_location(ventoy_os_param *param)
     }
 
     CopyMem(&location->guid, &param->guid, sizeof(ventoy_guid));
-    location->image_sector_size = 2048;
+    location->image_sector_size = gSector512Mode ? 512 : 2048;
     location->disk_sector_size  = g_chain->disk_sector_size;
     location->region_count = g_img_chunk_num;
 
     region = location->regions;
 
-    for (i = 0; i < g_img_chunk_num; i++)
+    if (gSector512Mode)
     {
-        region->image_sector_count = chunk->img_end_sector - chunk->img_start_sector + 1;
-        region->image_start_sector = chunk->img_start_sector;
-        region->disk_start_sector  = chunk->disk_start_sector;
-        region++;
-        chunk++;
+        for (i = 0; i < g_img_chunk_num; i++)
+        {
+            region->image_sector_count = chunk->disk_end_sector - chunk->disk_start_sector + 1;
+            region->image_start_sector = chunk->img_start_sector * 4;
+            region->disk_start_sector  = chunk->disk_start_sector;
+            region++;
+            chunk++;
+        }
+    }
+    else
+    {
+        for (i = 0; i < g_img_chunk_num; i++)
+        {
+            region->image_sector_count = chunk->img_end_sector - chunk->img_start_sector + 1;
+            region->image_start_sector = chunk->img_start_sector;
+            region->disk_start_sector  = chunk->disk_start_sector;
+            region++;
+            chunk++;
+        }
     }
 
     return 0;
diff --git a/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/VentoyProtocol.c b/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/VentoyProtocol.c
index cdc75ab4..fc6a365a 100644
--- a/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/VentoyProtocol.c
+++ b/EDK2/edk2_mod/edk2-edk2-stable201911/MdeModulePkg/Application/Ventoy/VentoyProtocol.c
@@ -71,6 +71,7 @@ STATIC EFI_LOCATE_HANDLE g_org_locate_handle = NULL;
 
 STATIC UINT8 g_sector_buf[2048];
 STATIC EFI_BLOCK_READ g_sector_2048_read = NULL;
+STATIC EFI_BLOCK_WRITE g_sector_2048_write = NULL;
 
 BOOLEAN ventoy_is_cdrom_dp_exist(VOID)
 {
@@ -245,6 +246,87 @@ STATIC EFI_STATUS EFIAPI ventoy_read_iso_sector
     return EFI_SUCCESS;    
 }
 
+STATIC EFI_STATUS EFIAPI ventoy_write_iso_sector
+(
+    IN UINT64                 Sector,
+    IN UINTN                  Count,
+    IN VOID                  *Buffer
+)
+{
+    EFI_STATUS Status = EFI_SUCCESS;
+    EFI_LBA MapLba = 0;
+    UINT32 i = 0;
+    UINTN secLeft = 0;
+    UINTN secRead = 0;
+    UINT64 ReadStart = 0;
+    UINT64 ReadEnd = 0;
+    UINT8 *pCurBuf = (UINT8 *)Buffer;
+    ventoy_img_chunk *pchunk = g_chunk;
+    EFI_BLOCK_IO_PROTOCOL *pRawBlockIo = gBlockData.pRawBlockIo;
+    
+    debug("write iso sector %lu  count %u", Sector, Count);
+
+    ReadStart = Sector * 2048;
+    ReadEnd = (Sector + Count) * 2048;
+
+    for (i = 0; Count > 0 && i < g_img_chunk_num; i++, pchunk++)
+    {
+        if (Sector >= pchunk->img_start_sector && Sector <= pchunk->img_end_sector)
+        {
+            if (g_chain->disk_sector_size == 512)
+            {
+                MapLba = (Sector - pchunk->img_start_sector) * 4 + pchunk->disk_start_sector;
+            }
+            else
+            {
+                MapLba = (Sector - pchunk->img_start_sector) * 2048 / g_chain->disk_sector_size + pchunk->disk_start_sector;
+            }
+
+            secLeft = pchunk->img_end_sector + 1 - Sector;
+            secRead = (Count < secLeft) ? Count : secLeft;
+
+            Status = pRawBlockIo->WriteBlocks(pRawBlockIo, pRawBlockIo->Media->MediaId,
+                                     MapLba, secRead * 2048, pCurBuf);
+            if (EFI_ERROR(Status))
+            {
+                debug("Raw disk write block failed %r LBA:%lu Count:%u", Status, MapLba, secRead);
+                return Status;
+            }
+
+            Count -= secRead;
+            Sector += secRead;
+            pCurBuf += secRead * 2048;
+        }
+    }
+
+    return EFI_SUCCESS;    
+}
+
+EFI_STATUS EFIAPI ventoy_block_io_ramdisk_write 
+(
+    IN EFI_BLOCK_IO_PROTOCOL          *This,
+    IN UINT32                          MediaId,
+    IN EFI_LBA                         Lba,
+    IN UINTN                           BufferSize,
+    IN VOID                           *Buffer
+) 
+{
+    (VOID)This;
+    (VOID)MediaId;
+    (VOID)Lba;
+    (VOID)BufferSize;
+    (VOID)Buffer;
+
+    if (!gSector512Mode)
+    {
+        return EFI_WRITE_PROTECTED;
+    }
+
+    CopyMem(g_iso_data_buf + (Lba * 2048), Buffer, BufferSize);
+
+	return EFI_SUCCESS;
+}
+
 EFI_STATUS EFIAPI ventoy_block_io_ramdisk_read 
 (
     IN EFI_BLOCK_IO_PROTOCOL          *This,
@@ -438,12 +520,21 @@ EFI_STATUS EFIAPI ventoy_block_io_write
     IN VOID                           *Buffer
 ) 
 {
+    UINT32 secNum = 0;
+    UINT64 offset = 0;
+    
     (VOID)This;
     (VOID)MediaId;
-    (VOID)Lba;
-    (VOID)BufferSize;
-    (VOID)Buffer;
-	return EFI_WRITE_PROTECTED;
+
+    if (!gSector512Mode)
+    {
+        return EFI_WRITE_PROTECTED;
+    }
+
+    secNum = BufferSize / 2048;
+    offset = Lba * 2048;
+
+    return ventoy_write_iso_sector(Lba, secNum, Buffer);
 }
 
 EFI_STATUS EFIAPI ventoy_block_io_flush(IN EFI_BLOCK_IO_PROTOCOL *This)
@@ -633,6 +724,68 @@ EFI_STATUS EFIAPI ventoy_block_io_read_512
     return Status;
 }
 
+EFI_STATUS EFIAPI ventoy_block_io_write_512
+(
+    IN EFI_BLOCK_IO_PROTOCOL          *This,
+    IN UINT32                          MediaId,
+    IN EFI_LBA                         Lba,
+    IN UINTN                           BufferSize,
+    IN VOID                           *Buffer
+)
+{
+    EFI_LBA Mod;
+    UINTN ReadSize;
+    UINT8 *CurBuf = NULL;
+    EFI_STATUS Status = EFI_SUCCESS;
+
+    debug("ventoy_block_io_write_512 %lu %lu\n", Lba, BufferSize / 512);
+
+    CurBuf = (UINT8 *)Buffer;
+
+    Mod = Lba % 4;
+    if (Mod > 0)
+    {
+        Status |= g_sector_2048_read(This, MediaId, Lba / 4, 2048, g_sector_buf);
+
+        if (BufferSize <= (4 - Mod) * 512)
+        {
+            CopyMem(g_sector_buf + Mod * 512, CurBuf, BufferSize);
+            return g_sector_2048_write(This, MediaId, Lba / 4, 2048, g_sector_buf);
+        }
+        else
+        {
+            ReadSize = (4 - Mod) * 512;
+            CopyMem(g_sector_buf + Mod * 512, CurBuf, ReadSize);
+            g_sector_2048_write(This, MediaId, Lba / 4, 2048, g_sector_buf);
+            
+            CurBuf += ReadSize;
+            Lba += (4 - Mod);
+            BufferSize -= ReadSize;
+        }
+    }
+
+    if (BufferSize >= 2048)
+    {
+        ReadSize = BufferSize / 2048 * 2048;
+            
+        Status |= g_sector_2048_write(This, MediaId, Lba / 4, ReadSize, CurBuf);
+        CurBuf += ReadSize;
+        
+        Lba += ReadSize / 512;
+        BufferSize -= ReadSize;
+    }
+
+    if (BufferSize > 0)
+    {
+        Status |= g_sector_2048_read(This, MediaId, Lba / 4, 2048, g_sector_buf);
+        
+        CopyMem(g_sector_buf, CurBuf, BufferSize);
+        g_sector_2048_write(This, MediaId, Lba / 4, 2048, g_sector_buf);
+    }
+
+    return Status;
+}
+
 EFI_STATUS EFIAPI ventoy_install_blockio(IN EFI_HANDLE ImageHandle, IN UINT64 ImgSize)
 {   
     EFI_STATUS Status = EFI_SUCCESS;
@@ -665,14 +818,16 @@ EFI_STATUS EFIAPI ventoy_install_blockio(IN EFI_HANDLE ImageHandle, IN UINT64 Im
     if (gSector512Mode)
     {
         g_sector_2048_read = gMemdiskMode ? ventoy_block_io_ramdisk_read : ventoy_block_io_read;
+        g_sector_2048_write = gMemdiskMode ? ventoy_block_io_ramdisk_write : ventoy_block_io_write;
         pBlockIo->ReadBlocks = ventoy_block_io_read_512;
+    	pBlockIo->WriteBlocks = ventoy_block_io_write_512;
     }
     else
     {
         pBlockIo->ReadBlocks = gMemdiskMode ? ventoy_block_io_ramdisk_read : ventoy_block_io_read;        
+    	pBlockIo->WriteBlocks = ventoy_block_io_write;
     }
         
-	pBlockIo->WriteBlocks = ventoy_block_io_write;
 	pBlockIo->FlushBlocks = ventoy_block_io_flush;
 
     Status = gBS->InstallMultipleProtocolInterfaces(&gBlockData.Handle,
diff --git a/GRUB2/MOD_SRC/grub-2.04/grub-core/normal/menu_text.c b/GRUB2/MOD_SRC/grub-2.04/grub-core/normal/menu_text.c
index cd96ceb1..0f3ea8a6 100644
--- a/GRUB2/MOD_SRC/grub-2.04/grub-core/normal/menu_text.c
+++ b/GRUB2/MOD_SRC/grub-2.04/grub-core/normal/menu_text.c
@@ -190,10 +190,17 @@ command-line or ESC to discard edits and return to the GRUB menu."),
 	}
       else
 	{
+	  char szLine[128];
+	  const char *checkret = grub_env_get("VTOY_CHKDEV_RESULT_STRING");
+      if (checkret == NULL || checkret[0] != '0') {
+        grub_snprintf(szLine, sizeof(szLine), "%s  [Unofficial Ventoy]", grub_env_get("VTOY_TEXT_MENU_VER"));
+      } else {
+        grub_snprintf(szLine, sizeof(szLine), "%s", grub_env_get("VTOY_TEXT_MENU_VER"));
+      }
+      
 	  ret += grub_print_message_indented_real("\n", STANDARD_MARGIN, STANDARD_MARGIN, term, dry_run);
 
-	  ret += grub_print_message_indented_real(grub_env_get("VTOY_TEXT_MENU_VER"),
-	     STANDARD_MARGIN, STANDARD_MARGIN, term, dry_run);
+	  ret += grub_print_message_indented_real(szLine, STANDARD_MARGIN, STANDARD_MARGIN, term, dry_run);
       
 	  ret += grub_print_message_indented_real("\n", STANDARD_MARGIN, STANDARD_MARGIN, term, dry_run);
 	  ret += grub_print_message_indented_real(grub_env_get("VTOY_HOTKEY_TIP"),
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 1fc40fe1..ea3a8d55 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
@@ -40,6 +40,7 @@
 #endif
 #include <grub/time.h>
 #include <grub/video.h>
+#include <grub/acpi.h>
 #include <grub/relocator.h>
 #include <grub/charset.h>
 #include <grub/ventoy.h>
@@ -108,12 +109,12 @@ static ventoy_video_mode *g_video_mode_list = NULL;
 
 static const char *g_menu_class[] = 
 {
-    "vtoyiso", "vtoywim", "vtoyefi", "vtoyimg", "vtoyvhd"
+    "vtoyiso", "vtoywim", "vtoyefi", "vtoyimg", "vtoyvhd", "vtoyvtoy"
 };
     
 static const char *g_menu_prefix[] = 
 {
-    "iso", "wim", "efi", "img", "vhd"
+    "iso", "wim", "efi", "img", "vhd", "vtoy"
 };
 
 void ventoy_debug(const char *fmt, ...)
@@ -1195,6 +1196,10 @@ static int ventoy_colect_img_files(const char *filename, const struct grub_dirho
             }
             type = img_type_img;
         }
+        else if (len >= 5 && 0 == grub_strcasecmp(filename + len - 5, ".vtoy"))
+        {
+            type = img_type_vtoy;
+        }
         else
         {
             return 0;
@@ -1495,19 +1500,21 @@ int ventoy_check_device_result(int ret)
 {
     char buf[32];
     
-    grub_snprintf(buf, sizeof(buf), "%d", ret);
-    ventoy_set_env("VTOY_CHKDEV_RESULT_STRING", buf);
+    grub_snprintf(buf, sizeof(buf), "%d", (ret & 0x7FFF));
+    grub_env_set("VTOY_CHKDEV_RESULT_STRING", buf);
+    grub_env_export("VTOY_CHKDEV_RESULT_STRING");
 
-    if (ret)
+    if (ret & 0x1000)
     {
         grub_printf(VTOY_WARNING"\n");
         grub_printf(VTOY_WARNING"\n");
         grub_printf(VTOY_WARNING"\n\n\n");
         
+        grub_printf("Unsatisfied conditions detected for Ventoy.\n\n");
         grub_printf("This is NOT a standard Ventoy device and is NOT officially supported.\n\n");
         grub_printf("Recommend to follow the instructions in https://www.ventoy.net to use Ventoy.\n");
         
-        grub_printf("\n\nWill continue to boot after 10 seconds ...... ");
+        grub_printf("\n\nWill exit after 10 seconds ...... ");
         grub_refresh();
         grub_sleep(10);
     }
@@ -1527,29 +1534,41 @@ int ventoy_check_device(grub_device_t dev)
     
     if (dev->disk == NULL || dev->disk->partition == NULL)
     {
-        return ventoy_check_device_result(1);
+        return ventoy_check_device_result(1 | 0x1000);
     }
 
-    partition = dev->disk->partition;
-    if (partition->number != 0 || partition->start != 2048)
+    if (0 == ventoy_check_file_exist("(%s,2)/ventoy/ventoy.cpio", dev->disk->name) ||
+        0 == ventoy_check_file_exist("(%s,2)/grub/localboot.cfg", dev->disk->name) ||
+        0 == ventoy_check_file_exist("(%s,2)/tool/mount.exfat-fuse_64", dev->disk->name))
     {
-        return ventoy_check_device_result(2);
+        return ventoy_check_device_result(2 | 0x1000);
     }
 
-    offset = partition->start + partition->len;
-
     /* We must have partition 2 */
     file = ventoy_grub_file_open(VENTOY_FILE_TYPE, "(%s,2)/ventoy/ventoy.cpio", dev->disk->name);
     if (!file)
     {
-        return ventoy_check_device_result(3);
+        return ventoy_check_device_result(3 | 0x1000);
+    }
+
+    if (NULL == grub_strstr(file->fs->name, "fat"))
+    {
+        grub_file_close(file);
+        return ventoy_check_device_result(4 | 0x1000);
+    }
+
+    partition = dev->disk->partition;
+    if (partition->number != 0 || partition->start != 2048)
+    {
+        return ventoy_check_device_result(5);
     }
 
+    offset = partition->start + partition->len;
     partition = file->device->disk->partition;
     if ((partition->number != 1) || (partition->len != 65536) || (offset != partition->start))
     {
         grub_file_close(file);
-        return ventoy_check_device_result(4);
+        return ventoy_check_device_result(6);
     }
     grub_file_close(file);
 
@@ -1557,21 +1576,21 @@ int ventoy_check_device(grub_device_t dev)
     dev2 = grub_device_open(devname);
     if (!dev2)
     {
-        return ventoy_check_device_result(5);
+        return ventoy_check_device_result(7);
     }
 
     fs = grub_fs_probe(dev2);
     if (!fs)
     {
         grub_device_close(dev2);
-        return ventoy_check_device_result(6);
+        return ventoy_check_device_result(8);
     }
 
     fs->fs_label(dev2, &label);
     if ((!label) || grub_strncmp("VTOYEFI", label, 7))
     {
         grub_device_close(dev2);
-        return ventoy_check_device_result(7);
+        return ventoy_check_device_result(9);
     }
 
     grub_device_close(dev2);    
@@ -1624,9 +1643,6 @@ static grub_err_t ventoy_cmd_list_img(grub_extcmd_context_t ctxt, int argc, char
         goto fail;        
     }
 
-    /* make sure that we are running in a correct Ventoy device */
-    ventoy_check_device(dev);
-
     g_enum_fs = fs = grub_fs_probe(dev);
     if (!fs)
     {
@@ -1869,7 +1885,7 @@ static grub_err_t ventoy_cmd_chosen_img_path(grub_extcmd_context_t ctxt, int arg
     VENTOY_CMD_RETURN(GRUB_ERR_NONE);
 }
 
-int ventoy_get_disk_guid(const char *filename, grub_uint8_t *guid)
+int ventoy_get_disk_guid(const char *filename, grub_uint8_t *guid, grub_uint8_t *signature)
 {
     grub_disk_t disk;
     char *device_name;
@@ -1903,6 +1919,7 @@ int ventoy_get_disk_guid(const char *filename, grub_uint8_t *guid)
     if (disk)
     {
         grub_disk_read(disk, 0, 0x180, 16, guid);
+        grub_disk_read(disk, 0, 0x1b8, 4, signature);
         grub_disk_close(disk);
     }
     else
@@ -1999,7 +2016,7 @@ void ventoy_fill_os_param(grub_file_t file, ventoy_os_param *param)
 
     grub_snprintf(param->vtoy_img_path, sizeof(param->vtoy_img_path), "%s", pos);
     
-    ventoy_get_disk_guid(file->name, param->vtoy_disk_guid);
+    ventoy_get_disk_guid(file->name, param->vtoy_disk_guid, param->vtoy_disk_signature);
 
     param->vtoy_img_size = file->size;
 
@@ -2112,7 +2129,10 @@ 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)
+    if ((len > 4 && grub_strncasecmp(file->name + len - 4, ".img", 4) == 0) ||
+        (len > 4 && grub_strncasecmp(file->name + len - 4, ".vhd", 4) == 0) ||
+        (len > 5 && grub_strncasecmp(file->name + len - 5, ".vhdx", 5) == 0) ||
+        (len > 5 && grub_strncasecmp(file->name + len - 5, ".vtoy", 5) == 0))
     {
         for (i = 0; i < chunklist->cur_chunk; i++)
         {
@@ -2155,6 +2175,12 @@ static grub_err_t ventoy_cmd_img_sector(grub_extcmd_context_t ctxt, int argc, ch
         grub_free(g_img_chunk_list.chunk);
     }
 
+    if (ventoy_get_fs_type(file->fs->name) >= ventoy_fs_max)
+    {
+        grub_file_close(file);
+        return grub_error(GRUB_ERR_BAD_ARGUMENT, "Unsupported filesystem %s\n", file->fs->name); 
+    }
+    
     /* get image chunk data */
     grub_memset(&g_img_chunk_list, 0, sizeof(g_img_chunk_list));
     g_img_chunk_list.chunk = grub_malloc(sizeof(ventoy_img_chunk) * DEFAULT_CHUNK_NUM);
@@ -2977,6 +3003,119 @@ static grub_err_t ventoy_cmd_img_unhook_root(grub_extcmd_context_t ctxt, int arg
     return 0;
 }
 
+static grub_err_t ventoy_cmd_acpi_param(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    int i;
+    int buflen;
+    int datalen;
+    int loclen;
+    int img_chunk_num;
+    int image_sector_size;
+    char cmd[64];
+    ventoy_chain_head *chain;
+    ventoy_img_chunk *chunk;
+    ventoy_os_param *osparam;
+    ventoy_image_location *location;
+    ventoy_image_disk_region *region;
+    struct grub_acpi_table_header *acpi;
+    
+    (void)ctxt;
+    
+    if (argc != 2)
+    {
+        return 1;
+    }
+
+    debug("ventoy_cmd_acpi_param %s %s\n", args[0], args[1]);
+
+    chain = (ventoy_chain_head *)(ulong)grub_strtoul(args[0], NULL, 16);
+    if (!chain)
+    {
+        return 1;
+    }
+
+    image_sector_size = (int)grub_strtol(args[1], NULL, 10);
+
+    if (grub_memcmp(&g_ventoy_guid, &(chain->os_param.guid), 16))
+    {
+        debug("Invalid ventoy guid 0x%x\n", chain->os_param.guid.data1);
+        return 1;
+    }
+
+    img_chunk_num = chain->img_chunk_num;
+
+    loclen = sizeof(ventoy_image_location) + (img_chunk_num - 1) * sizeof(ventoy_image_disk_region);
+    datalen = sizeof(ventoy_os_param) + loclen;
+    
+    buflen = sizeof(struct grub_acpi_table_header) + datalen;
+    acpi = grub_zalloc(buflen);
+    if (!acpi)
+    {
+        return 1;
+    }
+    
+    /* Step1: Fill acpi table header */
+    grub_memcpy(acpi->signature, "VTOY", 4);
+    acpi->length = buflen;
+    acpi->revision = 1;
+    grub_memcpy(acpi->oemid, "VENTOY", 6);
+    grub_memcpy(acpi->oemtable, "OSPARAMS", 8);
+    acpi->oemrev = 1;
+    acpi->creator_id[0] = 1;
+    acpi->creator_rev = 1;
+
+    /* Step2: Fill data */
+    osparam = (ventoy_os_param *)(acpi + 1);
+    grub_memcpy(osparam, &chain->os_param, sizeof(ventoy_os_param));
+    osparam->vtoy_img_location_addr = 0;
+    osparam->vtoy_img_location_len  = loclen;
+    osparam->chksum = 0;
+    osparam->chksum = 0x100 - grub_byte_checksum(osparam, sizeof(ventoy_os_param));
+
+    location = (ventoy_image_location *)(osparam + 1);
+    grub_memcpy(&location->guid, &osparam->guid, sizeof(ventoy_guid));
+    location->image_sector_size = image_sector_size;
+    location->disk_sector_size  = chain->disk_sector_size;
+    location->region_count = img_chunk_num;
+
+    region = location->regions;
+    chunk = (ventoy_img_chunk *)((char *)chain + chain->img_chunk_offset);
+    if (512 == image_sector_size)
+    {
+        for (i = 0; i < img_chunk_num; i++)
+        {
+            region->image_sector_count = chunk->disk_end_sector - chunk->disk_start_sector + 1;
+            region->image_start_sector = chunk->img_start_sector * 4;
+            region->disk_start_sector  = chunk->disk_start_sector;
+            region++;
+            chunk++;
+        }
+    }
+    else
+    {
+        for (i = 0; i < img_chunk_num; i++)
+        {
+            region->image_sector_count = chunk->img_end_sector - chunk->img_start_sector + 1;
+            region->image_start_sector = chunk->img_start_sector;
+            region->disk_start_sector  = chunk->disk_start_sector;        
+            region++;
+            chunk++;
+        }
+    }
+
+    /* Step3: Fill acpi checksum */
+    acpi->checksum = 0;
+    acpi->checksum = 0x100 - grub_byte_checksum(acpi, acpi->length);
+
+    /* load acpi table */
+    grub_snprintf(cmd, sizeof(cmd), "acpi mem:0x%lx:size:%d", (ulong)acpi, acpi->length);
+    grub_script_execute_sourcecode(cmd);
+
+    grub_free(acpi);
+    
+    VENTOY_CMD_RETURN(0);
+}
+
 static grub_err_t ventoy_cmd_push_last_entry(grub_extcmd_context_t ctxt, int argc, char **args)
 {
     (void)ctxt;
@@ -3081,7 +3220,10 @@ end:
 
 static grub_err_t ventoy_cmd_load_part_table(grub_extcmd_context_t ctxt, int argc, char **args)
 {
+    char name[64];
+    int ret;
     grub_disk_t disk;
+    grub_device_t dev;
     
     (void)argc;
     (void)ctxt;
@@ -3101,7 +3243,21 @@ static grub_err_t ventoy_cmd_load_part_table(grub_extcmd_context_t ctxt, int arg
 
     grub_disk_read(disk, 0, 0, sizeof(ventoy_gpt_info), g_ventoy_part_info);
     grub_disk_close(disk);
-    
+
+    grub_snprintf(name, sizeof(name), "%s,1", args[0]);
+    dev = grub_device_open(name);
+    if (dev)
+    {
+        /* make sure that we are running in a correct Ventoy device */
+        ret = ventoy_check_device(dev);
+        grub_device_close(dev);
+
+        if (ret & 0x1000)
+        {
+            grub_exit();            
+        }
+    }
+
     return 0;
 }
 
@@ -3492,6 +3648,8 @@ static int ventoy_env_init(void)
         g_grub_param->grub_env_printf = (grub_env_printf_pf)grub_printf;
         grub_snprintf(buf, sizeof(buf), "%p", g_grub_param);
         grub_env_set("env_param", buf);
+        grub_env_set("ventoy_env_param", buf);
+        grub_env_export("ventoy_env_param");
     }
 
     return 0;
@@ -3517,6 +3675,8 @@ static cmd_para ventoy_cmds[] =
     { "vt_load_wimboot", ventoy_cmd_load_wimboot, 0, NULL, "", "", NULL },
     { "vt_load_vhdboot", ventoy_cmd_load_vhdboot, 0, NULL, "", "", NULL },
     { "vt_patch_vhdboot", ventoy_cmd_patch_vhdboot, 0, NULL, "", "", NULL },
+    { "vt_raw_chain_data", ventoy_cmd_raw_chain_data, 0, NULL, "", "", NULL },
+    { "vt_get_vtoy_type", ventoy_cmd_get_vtoy_type, 0, NULL, "", "", NULL },
 
     { "vt_cpio_busybox64", ventoy_cmd_cpio_busybox_64, 0, NULL, "", "", NULL },
     { "vt_load_cpio", ventoy_cmd_load_cpio, 0, NULL, "", "", NULL },
@@ -3597,6 +3757,7 @@ static cmd_para ventoy_cmds[] =
 
     { "vt_img_hook_root", ventoy_cmd_img_hook_root, 0, NULL, "", "", NULL },
     { "vt_img_unhook_root", ventoy_cmd_img_unhook_root, 0, NULL, "", "", NULL },
+    { "vt_acpi_param", ventoy_cmd_acpi_param, 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 7fa04626..7d6ecc58 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
@@ -152,11 +152,12 @@ typedef struct ventoy_iso9660_vd
 
 #pragma pack()
 
-#define img_type_iso 0
-#define img_type_wim 1
-#define img_type_efi 2
-#define img_type_img 3
-#define img_type_vhd 4
+#define img_type_iso  0
+#define img_type_wim  1
+#define img_type_efi  2
+#define img_type_img  3
+#define img_type_vhd  4
+#define img_type_vtoy 5
 
 typedef struct img_info
 {
@@ -656,6 +657,41 @@ typedef struct ventoy_gpt_info
     ventoy_gpt_head Head;
     ventoy_gpt_part_tbl PartTbl[128];
 }ventoy_gpt_info;
+
+typedef struct vhd_footer_t
+{
+    char             cookie[8];    // Cookie
+    grub_uint32_t    features;     // Features
+    grub_uint32_t    ffversion;    // File format version
+    grub_uint32_t    dataoffset;   // Data offset
+    grub_uint32_t    timestamp;    // Timestamp
+    grub_uint32_t    creatorapp;   // Creator application
+    grub_uint32_t    creatorver;   // Creator version
+    grub_uint32_t    creatorhos;   // Creator host OS
+    grub_uint32_t    origsize;     // Original size
+    grub_uint32_t    currsize;     // Current size
+    grub_uint32_t    diskgeom;     // Disk geometry
+    grub_uint32_t    disktype;     // Disk type
+    grub_uint32_t    checksum;     // Checksum
+    grub_uint8_t     uniqueid[16]; // Unique ID
+    grub_uint8_t     savedst;      // Saved state
+}vhd_footer_t;
+
+#define VDI_IMAGE_FILE_INFO   "<<< Oracle VM VirtualBox Disk Image >>>\n"
+
+/** Image signature. */
+#define VDI_IMAGE_SIGNATURE   (0xbeda107f)
+
+typedef struct VDIPREHEADER
+{
+    /** Just text info about image type, for eyes only. */
+    char            szFileInfo[64];
+    /** The image signature (VDI_IMAGE_SIGNATURE). */
+    grub_uint32_t   u32Signature;
+    /** The image version (VDI_IMAGE_VERSION). */
+    grub_uint32_t   u32Version;
+} VDIPREHEADER, *PVDIPREHEADER;
+
 #pragma pack()
 
 typedef struct ventoy_video_mode
@@ -792,7 +828,7 @@ grub_err_t ventoy_cmd_collect_wim_patch(grub_extcmd_context_t ctxt, int argc, ch
 grub_err_t ventoy_cmd_wim_patch_count(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_locate_wim_patch(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_unix_chain_data(grub_extcmd_context_t ctxt, int argc, char **args);
-int ventoy_get_disk_guid(const char *filename, grub_uint8_t *guid);
+int ventoy_get_disk_guid(const char *filename, grub_uint8_t *guid, grub_uint8_t *signature);
 grub_err_t ventoy_cmd_unix_reset(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_unix_replace_conf(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_unix_replace_ko(grub_extcmd_context_t ctxt, int argc, char **args);
@@ -803,6 +839,8 @@ int ventoy_check_device(grub_device_t dev);
 void ventoy_debug_dump_guid(const char *prefix, grub_uint8_t *guid);
 grub_err_t ventoy_cmd_load_vhdboot(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_patch_vhdboot(grub_extcmd_context_t ctxt, int argc, char **args);
+grub_err_t ventoy_cmd_raw_chain_data(grub_extcmd_context_t ctxt, int argc, char **args);
+grub_err_t ventoy_cmd_get_vtoy_type(grub_extcmd_context_t ctxt, int argc, char **args);
 
 #endif /* __VENTOY_DEF_H__ */
 
diff --git a/GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_unix.c b/GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_unix.c
index 1e81309c..e38597ff 100644
--- a/GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_unix.c
+++ b/GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_unix.c
@@ -194,6 +194,7 @@ static int ventoy_freebsd_append_conf(char *buf, const char *isopath)
     grub_file_t isofile;
     char uuid[64] = {0};
     ventoy_img_chunk *chunk;
+    grub_uint8_t disk_sig[4];
     grub_uint8_t disk_guid[16];
 
     debug("ventoy_freebsd_append_conf %s\n", isopath);
@@ -209,7 +210,7 @@ static int ventoy_freebsd_append_conf(char *buf, const char *isopath)
 
     disk = isofile->device->disk;
 
-    ventoy_get_disk_guid(isofile->name, disk_guid);
+    ventoy_get_disk_guid(isofile->name, disk_guid, disk_sig);
 
     for (i = 0; i < 16; i++)
     {
@@ -217,7 +218,8 @@ static int ventoy_freebsd_append_conf(char *buf, const char *isopath)
     }
 
     vtoy_ssprintf(buf, pos, "hint.ventoy.0.disksize=%llu\n", (ulonglong)(disk->total_sectors * (1 << disk->log_sector_size)));
-    vtoy_ssprintf(buf, pos, "hint.ventoy.0.diskuuid=\"%s\"\n", uuid);    
+    vtoy_ssprintf(buf, pos, "hint.ventoy.0.diskuuid=\"%s\"\n", uuid);
+    vtoy_ssprintf(buf, pos, "hint.ventoy.0.disksignature=%02x%02x%02x%02x\n", disk_sig[0], disk_sig[1], disk_sig[2], disk_sig[3]);
     vtoy_ssprintf(buf, pos, "hint.ventoy.0.segnum=%u\n", g_img_chunk_list.cur_chunk);
 
     for (i = 0; i < g_img_chunk_list.cur_chunk; i++)
diff --git a/GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_vhd.c b/GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_vhd.c
index 98e83842..af8b2ed5 100644
--- a/GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_vhd.c
+++ b/GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_vhd.c
@@ -273,3 +273,196 @@ grub_err_t ventoy_cmd_load_vhdboot(grub_extcmd_context_t ctxt, int argc, char **
     return 0;
 }
 
+grub_err_t ventoy_cmd_get_vtoy_type(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    int i;
+    int offset = -1;
+    grub_file_t file;
+    vhd_footer_t vhdfoot;
+    VDIPREHEADER vdihdr;
+    char type[16] = {0};
+    ventoy_mbr_head mbr;
+    ventoy_gpt_info *gpt;
+    
+    (void)ctxt;
+
+    if (argc != 4)
+    {
+        return 0;
+    }
+
+    file = grub_file_open(args[0], VENTOY_FILE_TYPE);
+    if (!file)
+    {
+        debug("Failed to open file %s\n", args[0]);
+        return 0;
+    }
+
+    grub_snprintf(type, sizeof(type), "unknown");
+    
+    grub_file_seek(file, file->size - 512);
+    grub_file_read(file, &vhdfoot, sizeof(vhdfoot));
+
+    if (grub_strncmp(vhdfoot.cookie, "conectix", 8) == 0)
+    {
+        offset = 0;
+        grub_snprintf(type, sizeof(type), "vhd%u", grub_swap_bytes32(vhdfoot.disktype));
+    }
+    else
+    {
+        grub_file_seek(file, 0);
+        grub_file_read(file, &vdihdr, sizeof(vdihdr));
+        if (vdihdr.u32Signature == VDI_IMAGE_SIGNATURE &&
+            grub_strncmp(vdihdr.szFileInfo, VDI_IMAGE_FILE_INFO, grub_strlen(VDI_IMAGE_FILE_INFO)) == 0)
+        {
+            offset = 2 * 1048576;
+            grub_snprintf(type, sizeof(type), "vdi");
+        }
+        else
+        {
+            offset = 0;
+            grub_snprintf(type, sizeof(type), "raw");
+        }
+    }
+
+    grub_env_set(args[1], type);
+    debug("<%s> vtoy type: <%s> ", args[0], type);
+    
+    if (offset >= 0)
+    {
+        grub_file_seek(file, offset);
+        grub_file_read(file, &mbr, sizeof(mbr));
+
+        if (mbr.Byte55 != 0x55 || mbr.ByteAA != 0xAA)
+        {
+            grub_env_set(args[1], "unknown");
+            debug("invalid mbr signature: 0x%x 0x%x\n", mbr.Byte55, mbr.ByteAA);
+            goto end;
+        }
+
+        if (mbr.PartTbl[0].FsFlag == 0xEE)
+        {
+            grub_env_set(args[2], "gpt");
+            debug("part type: %s\n", "GPT");
+
+            gpt = grub_zalloc(sizeof(ventoy_gpt_info));
+            if (gpt)
+            {
+                grub_file_seek(file, offset);
+                grub_file_read(file, gpt, sizeof(ventoy_gpt_info));
+
+                for (i = 0; i < 128; i++)
+                {
+                    if (grub_memcmp(gpt->PartTbl[i].PartType, "Hah!IdontNeedEFI", 16) == 0)
+                    {
+                        debug("part %d is grub_bios part\n", i);
+                        grub_env_set(args[3], "1");
+                        break;
+                    }
+                    else if (gpt->PartTbl[i].LastLBA == 0)
+                    {
+                        break;
+                    }
+                }
+                
+                grub_free(gpt);
+            }            
+        }
+        else
+        {
+            grub_env_set(args[2], "mbr");
+            debug("part type: %s\n", "MBR");
+        }
+    }
+    else
+    {
+        debug("part type: %s\n", "xxx");
+    }
+
+end:
+    grub_file_close(file);
+    VENTOY_CMD_RETURN(GRUB_ERR_NONE);    
+}
+
+grub_err_t ventoy_cmd_raw_chain_data(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    grub_uint32_t size = 0;
+    grub_uint32_t img_chunk_size = 0;
+    grub_file_t file;
+    grub_disk_t disk;
+    const char *pLastChain = NULL;
+    ventoy_chain_head *chain;
+    char envbuf[64];
+    
+    (void)ctxt;
+    (void)argc;
+
+    if (NULL == g_img_chunk_list.chunk)
+    {
+        grub_printf("ventoy not ready\n");
+        return 1;
+    }
+
+    file = ventoy_grub_file_open(VENTOY_FILE_TYPE, "%s", args[0]);
+    if (!file)
+    {
+        return 1;
+    }
+
+    img_chunk_size = g_img_chunk_list.cur_chunk * sizeof(ventoy_img_chunk);
+    
+    size = sizeof(ventoy_chain_head) + img_chunk_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_env_export("vtoy_chain_mem_addr");
+    grub_env_export("vtoy_chain_mem_size");
+
+    grub_memset(chain, 0, sizeof(ventoy_chain_head));
+
+    /* part 1: os parameter */
+    g_ventoy_chain_type = ventoy_chain_linux;
+    ventoy_fill_os_param(file, &(chain->os_param));
+
+    /* part 2: chain head */
+    disk = file->device->disk;
+    chain->disk_drive = disk->id;
+    chain->disk_sector_size = (1 << disk->log_sector_size);
+    chain->real_img_size_in_bytes = file->size;
+    chain->virt_img_size_in_bytes = (file->size + 2047) / 2048 * 2048;
+    chain->boot_catalog = 0;
+
+    /* part 3: image chunk */
+    chain->img_chunk_offset = sizeof(ventoy_chain_head);
+    chain->img_chunk_num = g_img_chunk_list.cur_chunk;
+    grub_memcpy((char *)chain + chain->img_chunk_offset, g_img_chunk_list.chunk, img_chunk_size);
+
+    grub_file_seek(file, 0);
+    grub_file_read(file, chain->boot_catalog_sector, 512);
+
+    grub_file_close(file);
+    
+    VENTOY_CMD_RETURN(GRUB_ERR_NONE);
+}
diff --git a/GRUB2/MOD_SRC/grub-2.04/include/grub/ventoy.h b/GRUB2/MOD_SRC/grub-2.04/include/grub/ventoy.h
index 1cf4661e..d593ad4c 100644
--- a/GRUB2/MOD_SRC/grub-2.04/include/grub/ventoy.h
+++ b/GRUB2/MOD_SRC/grub-2.04/include/grub/ventoy.h
@@ -71,7 +71,7 @@ typedef struct ventoy_image_location
 {
     ventoy_guid  guid;
 
-    /* image sector size, currently this value is always 2048 */
+    /* image sector size, 2048/512 */
     grub_uint32_t   image_sector_size;
 
     /* disk sector size, normally the value is 512 */
@@ -125,7 +125,9 @@ typedef struct ventoy_os_param
      */
     grub_uint8_t   vtoy_reserved[32];    // Internal use by ventoy
 
-    grub_uint8_t   reserved[31];
+    grub_uint8_t   vtoy_disk_signature[4];
+
+    grub_uint8_t   reserved[27];
 }ventoy_os_param;
 
 
diff --git a/IMG/cpio/ventoy/hook/manjaro/ventoy-disk.sh b/IMG/cpio/ventoy/hook/manjaro/ventoy-disk.sh
new file mode 100644
index 00000000..c1765376
--- /dev/null
+++ b/IMG/cpio/ventoy/hook/manjaro/ventoy-disk.sh
@@ -0,0 +1,66 @@
+#!/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"
+
+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 ${blkdev_num})
+vtlog "blkdev_num=$blkdev_num vtDM=$vtDM ..."
+
+while [ -n "Y" ]; do
+    if [ -b /dev/$vtDM ]; then
+        break
+    else
+        sleep 0.3
+    fi
+done
+
+if [ -n "$1" ]; then
+    vtlog "ln -s /dev/$vtDM $1"
+    ln -s /dev/$vtDM "$1"
+else
+    vtLABEL=$($BUSYBOX_PATH/blkid /dev/$vtDM | $SED 's/.*LABEL="\([^"]*\)".*/\1/')
+    vtlog "vtLABEL is $vtLABEL"
+    
+    if [ -z "$vtLABEL" ]; then
+        vtLABEL=$($SED "s/.*label=\([^ ]*\)/\1/" /proc/cmdline)
+        vtlog "vtLABEL is $vtLABEL from cmdline"
+    fi
+    
+    ln -s /dev/$vtDM "/dev/disk/by-label/$vtLABEL"
+fi 
+
+# OK finish
+set_ventoy_hook_finish
diff --git a/IMG/cpio/ventoy/hook/manjaro/ventoy-hook.sh b/IMG/cpio/ventoy/hook/manjaro/ventoy-hook.sh
index ebd828ec..f5cdcf57 100644
--- a/IMG/cpio/ventoy/hook/manjaro/ventoy-hook.sh
+++ b/IMG/cpio/ventoy/hook/manjaro/ventoy-hook.sh
@@ -28,8 +28,22 @@ else
     $CAT $VTOY_PATH/hook/default/13-dm-disk.rules > "$DISTRO_UDEV_DIR/13-dm-disk.rules"
 fi
 
-
-if $GREP -q '^mount_setup$' init; then
+if $GREP -q '^"$mount_handler"' /init; then
+    echo 'use mount_handler ...' >> $VTLOG
+    
+    vthookfile=/hooks/archiso
+    
+    if [ -e /hooks/miso ]; then
+        vthookfile=/hooks/miso
+        $SED "/^\"\$mount_handler\"/i\ $BUSYBOX_PATH/sh $VTOY_PATH/hook/manjaro/ventoy-disk.sh \"\$misodevice\"" -i /init    
+    else
+        $SED "/^\"\$mount_handler\"/i\ $BUSYBOX_PATH/sh $VTOY_PATH/hook/manjaro/ventoy-disk.sh \"\$archisodevice\"" -i /init
+    fi
+    
+    if [ -f $vthookfile ]; then
+        $SED  '/while ! poll_device "${dev}"/a\    if /ventoy/busybox/sh /ventoy/hook/manjaro/ventoy-timeout.sh ${dev}; then break; fi'   -i $vthookfile
+    fi   
+elif $GREP -q '^mount_setup$' init; then
     echo "Here use notify ..." >> $VTLOG
     
     ventoy_set_inotify_script  manjaro/ventoy-inotifyd-hook.sh
diff --git a/IMG/cpio/ventoy/hook/ventoy-hook-lib.sh b/IMG/cpio/ventoy/hook/ventoy-hook-lib.sh
index 0f9c74ff..f9dae7ae 100644
--- a/IMG/cpio/ventoy/hook/ventoy-hook-lib.sh
+++ b/IMG/cpio/ventoy/hook/ventoy-hook-lib.sh
@@ -87,7 +87,13 @@ wait_for_usb_disk_ready() {
 		usb_disk=$(get_ventoy_disk_name)
         vtlog "wait_for_usb_disk_ready $usb_disk ..."
         
-		if [ -e "${usb_disk}2" ]; then
+        if echo $usb_disk | $EGREP -q "nvme|mmc"; then
+            vtpart2=${usb_disk}p2
+        else
+            vtpart2=${usb_disk}2
+        fi
+        
+        if [ -e "${vtpart2}" ]; then
             vtlog "wait_for_usb_disk_ready $usb_disk finish"
 			break
 		else
@@ -105,7 +111,13 @@ is_ventoy_disk() {
 }
 
 not_ventoy_disk() {
-    if $VTOY_PATH/tool/vtoydump -f $VTOY_PATH/ventoy_os_param -c "$1"; then
+    if echo $1 | $EGREP -q "nvme.*p$|mmc.*p$"; then
+        vtDiskName=${1:0:-1}
+    else
+        vtDiskName=$1
+    fi
+
+    if $VTOY_PATH/tool/vtoydump -f $VTOY_PATH/ventoy_os_param -c "$vtDiskName"; then
         $BUSYBOX_PATH/false
     else
         $BUSYBOX_PATH/true
@@ -463,9 +475,12 @@ ventoy_create_persistent_link() {
     fi    
 }
 
-ventoy_udev_disk_common_hook() {
-    
-    VTDISK="${1:0:-1}"
+ventoy_udev_disk_common_hook() {    
+    if echo $1 | $EGREP -q "nvme.*p[0-9]$|mmc.*p[0-9]$"; then
+        VTDISK="${1:0:-2}"    
+    else
+        VTDISK="${1:0:-1}"
+    fi
     
     if [ -e /vtoy/vtoy ]; then
         VTRWMOD=""
@@ -533,8 +548,14 @@ is_inotify_ventoy_part() {
     if echo $1 | $GREP -q "2$"; then
         if ! [ -e /sys/block/$1 ]; then
             if [ -e /sys/class/block/$1 ]; then
-                if [ -e /dev/${1:0:-1} ]; then
-                    $VTOY_PATH/tool/vtoydump -f $VTOY_PATH/ventoy_os_param -c ${1:0:-1}
+                if echo $1 | $EGREP -q "nvme|mmc"; then
+                    vtShortName=${1:0:-2}
+                else
+                    vtShortName=${1:0:-1}
+                fi
+                
+                if [ -e /dev/$vtShortName ]; then
+                    $VTOY_PATH/tool/vtoydump -f $VTOY_PATH/ventoy_os_param -c $vtShortName
                     return
                 fi
             fi
diff --git a/INSTALL/EFI/BOOT/grubx64_real.efi b/INSTALL/EFI/BOOT/grubx64_real.efi
index b91cc7ed..bdecd32f 100644
Binary files a/INSTALL/EFI/BOOT/grubx64_real.efi and b/INSTALL/EFI/BOOT/grubx64_real.efi differ
diff --git a/INSTALL/grub/grub.cfg b/INSTALL/grub/grub.cfg
index a7a0caea..9b2a6fe8 100644
--- a/INSTALL/grub/grub.cfg
+++ b/INSTALL/grub/grub.cfg
@@ -252,7 +252,11 @@ function distro_specify_initrd_file_phase2 {
         if [ "$grub_platform" != "pc" ]; then
             vt_add_replace_file 0 "minimal\\x86_64\\rootfs.xz"
         fi
-        
+    elif [ -f (loop)/arch/boot/x86_64/archiso.img ]; then 
+        vt_linux_specify_initrd_file /arch/boot/x86_64/archiso.img
+        if [ "$grub_platform" != "pc" ]; then
+            vt_add_replace_file 0 "EFI\\archiso\\archiso.img"
+        fi
     fi
 }
 
@@ -440,6 +444,7 @@ function uefi_windows_menu_func {
 }
 
 function uefi_linux_menu_func {
+    
     if [ "$ventoy_compatible" = "NO" ]; then    
         
         if [ "$ventoy_fs_probe" = "udf" ]; then
@@ -493,6 +498,12 @@ function uefi_linux_menu_func {
                 elif [ -f (loop)/boot/initramfs_x86_64.img ]; then
                     vt_add_replace_file $vtindex "boot\\initramfs_x86_64.img"
                 fi
+            elif [ -d (loop)/parabola ]; then
+                if [ -f (loop)/parabola/boot/x86_64/parabola.img ]; then
+                    vt_add_replace_file $vtindex "EFI\\parabola\\parabola.img"
+                elif [ -f (loop)/boot/initramfs_x86_64.img ]; then
+                    vt_add_replace_file $vtindex "boot\\initramfs_x86_64.img"
+                fi
             elif [ -f (loop)/EFI/BOOT/initrd.gz ]; then
                 vt_add_replace_file $vtindex "EFI\\BOOT\\initrd.gz"
             elif [ -f (loop)/loader/entries/thinstation.conf ]; then
@@ -508,7 +519,7 @@ function uefi_linux_menu_func {
             fi
         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"            
+                vt_add_replace_file 0 "EFI\\parabolaiso\\parabolaiso.img"
             fi
         elif [ -e (loop)/syslinux/alt0/full.cz ]; then
             vt_add_replace_file 0 "EFI\\BOOT\\full.cz"            
@@ -646,9 +657,7 @@ function legacy_windows_menu_func {
     ventoy_debug_pause    
     
     if [ -n "$vtoy_chain_mem_addr" ]; then
-        linux16   $vtoy_path/ipxe.krn ${vtdebug_flag} ibft mem:${vtoy_chain_mem_addr}:size:${vtoy_chain_mem_size}
-        set gfxmode=1920x1080,1366x768,1024x768,800x600,auto
-        terminal_output gfxterm
+        linux16   $vtoy_path/ipxe.krn ${vtdebug_flag} ibft mem:${vtoy_chain_mem_addr}:size:${vtoy_chain_mem_size}        
         boot
     else
         echo "chain empty failed"
@@ -900,9 +909,7 @@ function wim_common_menuentry {
     
     if [ -n "$vtoy_chain_mem_addr" ]; then
         if [ "$grub_platform" = "pc" ]; then
-            linux16   $vtoy_path/ipxe.krn ${vtdebug_flag}  mem:${vtoy_chain_mem_addr}:size:${vtoy_chain_mem_size}
-            set gfxmode=1920x1080,1366x768,1024x768,800x600,auto
-            terminal_output gfxterm
+            linux16   $vtoy_path/ipxe.krn ${vtdebug_flag}  mem:${vtoy_chain_mem_addr}:size:${vtoy_chain_mem_size}            
         else
             ventoy_cli_console
             chainloader ${vtoy_path}/ventoy_x64.efi  env_param=${env_param} isoefi=${LoadIsoEfiDriver} ${vtdebug_flag} mem:${vtoy_chain_mem_addr}:size:${vtoy_chain_mem_size}
@@ -945,7 +952,6 @@ function efi_unsupport_menuentry {
     common_unsupport_menuentry
 }
 
-
 function vhd_common_menuentry {
 
     if [ "$VTOY_VHD_NO_WARNING" != "1" ]; then
@@ -959,17 +965,14 @@ function vhd_common_menuentry {
     fi
 
     vt_chosen_img_path vt_chosen_path vt_chosen_size
-    vt_patch_vhdboot ${vt_chosen_path}
+    vt_patch_vhdboot $vt_chosen_path
     
     ventoy_debug_pause    
     
     if [ -n "$vtoy_vhd_buf_addr" ]; then
         if [ "$grub_platform" = "pc" ]; then
             linux16   $vtoy_path/memdisk iso raw    
-            initrd16  mem:${vtoy_vhd_buf_addr}:size:${vtoy_vhd_buf_size}
-            
-            set gfxmode=1920x1080,1366x768,1024x768,800x600,auto
-            terminal_output gfxterm
+            initrd16  mem:${vtoy_vhd_buf_addr}:size:${vtoy_vhd_buf_size}            
             boot
         else
             ventoy_cli_console
@@ -978,7 +981,7 @@ function vhd_common_menuentry {
             ventoy_gui_console
         fi        
     else
-        echo "Failed to boot vhd file"
+        echo "Please put the right ventoy_vhdboot.img file to the 1st partition"
         ventoy_pause
     fi
 }
@@ -987,6 +990,68 @@ function vhd_unsupport_menuentry {
     common_unsupport_menuentry
 }
 
+function vtoyboot_common_func {
+    set efigrubpart=0
+    set vtoysupport=0
+    
+    vt_get_vtoy_type ${1} vtoytype parttype efigrubpart
+    
+    if vt_str_begin $vtoytype vhd; then    
+        set vtoysupport=1
+    elif [ "$vtoytype" = "raw" ]; then
+        set vtoysupport=1
+    fi
+    
+    if [ $vtoysupport -eq 1 ]; then    
+        if [ "$grub_platform" = "pc" ]; then
+            if [ "$parttype" = "gpt" -a $efigrubpart -eq 0 ]; then
+                echo "The OS in the vdisk was created in UEFI mode, but current is Legacy BIOS mode."
+                echo "虚拟磁盘内的系统是在UEFI模式下创建的，而当前系统是Legacy BIOS模式，可能无法正常启动。"
+                ventoy_pause
+            fi
+        else
+            if [ "$parttype" = "mbr" ]; then
+                echo "The OS in the vdisk was created in Legacy BIOS mode, but current is UEFI mode."
+                echo "虚拟磁盘内的系统是在Legacy BIOS模式下创建的，而当前系统是UEFI模式，可能无法正常启动。"
+                ventoy_pause
+            fi
+        fi
+    
+        vt_img_sector ${1}
+        vt_raw_chain_data ${1}
+
+        ventoy_debug_pause
+        
+        if [ -n "$vtoy_chain_mem_addr" ]; then        
+            if [ "$grub_platform" = "pc" ]; then                    
+                vt_acpi_param ${vtoy_chain_mem_addr} 512
+                linux16 $vtoy_path/ipxe.krn ${vtdebug_flag}  sector512  mem:${vtoy_chain_mem_addr}:size:${vtoy_chain_mem_size}   
+                boot
+            else
+                ventoy_cli_console
+                chainloader ${vtoy_path}/ventoy_x64.efi sector512 env_param=${ventoy_env_param} ${vtdebug_flag} mem:${vtoy_chain_mem_addr}:size:${vtoy_chain_mem_size}
+                boot
+                ventoy_gui_console
+            fi  
+        else
+            echo "chain empty failed!"
+            ventoy_pause
+        fi
+    else
+        echo "Unsupported vtoy type $vtoytype"
+        ventoy_pause
+    fi
+}
+
+function vtoy_common_menuentry {    
+    vt_chosen_img_path vt_chosen_path vt_chosen_size        
+    vtoyboot_common_func ${vtoy_iso_part}${vt_chosen_path}
+}
+
+function vtoy_unsupport_menuentry {
+    common_unsupport_menuentry
+}
+
 #
 #============================================================#
 # IMG file boot process                                      #
@@ -1228,10 +1293,11 @@ function img_common_menuentry {
             ventoy_img_memtest86            
         fi
     else
+        vt_linux_chain_data ${vtoy_iso_part}${vt_chosen_path}
         if [ "$grub_platform" = "pc" ]; then 
-            img_unsupport_tip
-        else
-            vt_linux_chain_data ${vtoy_iso_part}${vt_chosen_path}
+            linux16 $vtoy_path/ipxe.krn ${vtdebug_flag}  sector512  mem:${vtoy_chain_mem_addr}:size:${vtoy_chain_mem_size}   
+            boot
+        else            
             chainloader ${vtoy_path}/ventoy_x64.efi sector512 env_param=${env_param} isoefi=${LoadIsoEfiDriver} FirstTry=${FirstTryBootFile} ${vtdebug_flag} mem:${vtoy_chain_mem_addr}:size:${vtoy_chain_mem_size}
             boot
         fi
@@ -1355,6 +1421,7 @@ else
     set gfxpayload=keep
 fi
 
+
 if [ "$vtoy_display_mode" = "CLI" ]; then
     terminal_output  console
 elif [ "$vtoy_display_mode" = "serial" ]; then
@@ -1382,14 +1449,14 @@ fi
 export theme
 export gfxmode
 export vtoydev
+export vtoy_path
+export vtdebug_flag
 export vtoy_iso_part
 export vtoy_efi_part
 export VENTOY_VERSION
 export VTOY_CUR_VIDEO_MODE
 
 
-
-
 #colect all image files (iso files)
 set ventoy_img_count=0
 vt_list_img $vtoy_iso_part ventoy_img_count
diff --git a/INSTALL/grub/i386-pc/core.img b/INSTALL/grub/i386-pc/core.img
index 96b008ea..2495634e 100644
Binary files a/INSTALL/grub/i386-pc/core.img and b/INSTALL/grub/i386-pc/core.img differ
diff --git a/INSTALL/grub/i386-pc/moddep.lst b/INSTALL/grub/i386-pc/moddep.lst
index 4a8b6c6a..a995ae02 100644
--- a/INSTALL/grub/i386-pc/moddep.lst
+++ b/INSTALL/grub/i386-pc/moddep.lst
@@ -122,7 +122,7 @@ crypto:
 part_bsd: part_msdos
 cs5536: pci
 biosdisk:
-ventoy: ext2 fshelp font crypto exfat udf extcmd normal video gcry_sha1 relocator iso9660
+ventoy: ext2 fshelp font crypto exfat udf extcmd normal video gcry_sha1 relocator iso9660 acpi
 lsapm:
 gcry_sha512: crypto
 password: crypto normal
diff --git a/INSTALL/grub/x86_64-efi/moddep.lst b/INSTALL/grub/x86_64-efi/moddep.lst
index daa3d495..466fcaa9 100644
--- a/INSTALL/grub/x86_64-efi/moddep.lst
+++ b/INSTALL/grub/x86_64-efi/moddep.lst
@@ -119,7 +119,7 @@ ehci: cs5536 usb boot
 crypto:
 part_bsd: part_msdos
 cs5536:
-ventoy: ext2 fshelp crypto font exfat udf extcmd normal video gcry_sha1 iso9660
+ventoy: ext2 fshelp font crypto exfat udf extcmd normal video gcry_sha1 iso9660
 gcry_sha512: crypto
 password: crypto normal
 fshelp:
diff --git a/INSTALL/grub/x86_64-efi/normal.mod b/INSTALL/grub/x86_64-efi/normal.mod
index 5f060008..310236f7 100644
Binary files a/INSTALL/grub/x86_64-efi/normal.mod and b/INSTALL/grub/x86_64-efi/normal.mod differ
diff --git a/IPXE/ipxe_mod_code/ipxe-3fe683e/src/arch/x86/core/ventoy_vdisk.c b/IPXE/ipxe_mod_code/ipxe-3fe683e/src/arch/x86/core/ventoy_vdisk.c
index fcc0c0e2..14c6cb06 100644
--- a/IPXE/ipxe_mod_code/ipxe-3fe683e/src/arch/x86/core/ventoy_vdisk.c
+++ b/IPXE/ipxe_mod_code/ipxe-3fe683e/src/arch/x86/core/ventoy_vdisk.c
@@ -25,6 +25,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
 #include <ventoy.h>
 
 int g_debug = 0;
+int g_hddmode = 0;
 char *g_cmdline_copy;
 void *g_initrd_addr;
 size_t g_initrd_len;
@@ -55,6 +56,40 @@ uint64  g_fixup_iso9660_secover_tot_secs = 0;
 static struct int13_disk_address __bss16 ( ventoy_address );
 #define ventoy_address __use_data16 ( ventoy_address )
 
+static uint64_t ventoy_remap_lba_hdd(uint64_t lba, uint32_t *count)
+{
+    uint32_t i;
+    uint32_t max_sectors;
+    ventoy_img_chunk *cur;
+
+    if ((NULL == g_cur_chunk) || (lba < g_cur_chunk->img_start_sector) || 
+        (lba > g_cur_chunk->img_end_sector))
+    {
+        g_cur_chunk = NULL;
+        for (i = 0; i < g_img_chunk_num; i++)
+        {
+            cur = g_chunk + i;
+            if (lba >= cur->img_start_sector && lba <= cur->img_end_sector)
+            {
+                g_cur_chunk = cur;
+                break;
+            }
+        }
+    }
+
+    if (g_cur_chunk)
+    {
+        max_sectors = g_cur_chunk->img_end_sector - lba + 1;
+        if (*count > max_sectors)
+        {
+            *count = max_sectors;
+        }
+
+        return g_cur_chunk->disk_start_sector + (lba - g_cur_chunk->img_start_sector);            
+    }
+    return lba;
+}
+
 static uint64_t ventoy_remap_lba(uint64_t lba, uint32_t *count)
 {
     uint32_t i;
@@ -92,6 +127,72 @@ static uint64_t ventoy_remap_lba(uint64_t lba, uint32_t *count)
     return lba;
 }
 
+static int ventoy_vdisk_read_real_hdd(uint64_t lba, unsigned int count, unsigned long buffer)
+{
+    uint32_t left = 0;
+    uint32_t readcount = 0;
+    uint32_t tmpcount = 0;
+    uint16_t status = 0;
+    uint64_t curlba = 0;
+    uint64_t maplba = 0;
+    unsigned long phyaddr;
+
+    curlba = lba;
+    left = count;
+
+#if VTOY_DEBUG
+    printf("ventoy_vdisk_read_real_hdd: %llu %u\n", lba, count);
+#endif
+
+    while (left > 0)
+    {
+        readcount = left;
+        maplba = ventoy_remap_lba_hdd(curlba, &readcount);
+
+        tmpcount = readcount;
+        
+        phyaddr = user_to_phys(buffer, 0);
+
+        while (tmpcount > 0)
+        {
+            /* Use INT 13, 42 to read the data from real disk */
+            ventoy_address.lba = maplba;
+            ventoy_address.buffer.segment = (uint16_t)(phyaddr >> 4);
+    	    ventoy_address.buffer.offset = (uint16_t)(phyaddr & 0x0F);
+
+            if (tmpcount >= 64) /* max sectors per transmit */
+            {
+                ventoy_address.count = 64;
+                tmpcount -= 64;
+                maplba   += 64;
+                phyaddr  += 32768;
+            }
+            else
+            {
+                ventoy_address.count = tmpcount;
+                tmpcount = 0;
+            }
+
+            __asm__ __volatile__ ( REAL_CODE ( "stc\n\t"
+    					   "sti\n\t"
+    					   "int $0x13\n\t"
+    					   "sti\n\t" /* BIOS bugs */
+    					   "jc 1f\n\t"
+    					   "xorw %%ax, %%ax\n\t"
+    					   "\n1:\n\t" )
+    			       : "=a" ( status )
+    			       : "a" ( 0x4200 ), "d" ( VENTOY_BIOS_FAKE_DRIVE ),
+    				 "S" ( __from_data16 ( &ventoy_address ) ) );
+        }
+
+        curlba += readcount;
+        left -= readcount;
+        buffer += (readcount * 512);
+    }
+
+    return 0;
+}
+
 static int ventoy_vdisk_read_real(uint64_t lba, unsigned int count, unsigned long buffer)
 {
     uint32_t i = 0;
@@ -297,6 +398,13 @@ int ventoy_vdisk_read(struct san_device *sandev, uint64_t lba, unsigned int coun
 
     ix86 = (struct i386_all_regs *)sandev->x86_regptr;
 
+    if (g_hddmode)
+    {
+        ventoy_vdisk_read_real_hdd(lba, count, buffer);
+        ix86->regs.dl = sandev->drive;
+        return 0;
+    }
+
     /* Workaround for SSTR PE loader error */
     if (g_fixup_iso9660_secover_start)
     {
@@ -441,9 +549,12 @@ static void ventoy_dump_chain(ventoy_chain_head *chain)
     uint32_t i = 0;
     uint8_t chksum = 0;
     uint8_t *guid;
+    uint8_t *sig;
     uint8_t *vtoy_reserve;
     
     guid = chain->os_param.vtoy_disk_guid;
+    sig  = chain->os_param.vtoy_disk_signature;
+    
     for (i = 0; i < sizeof(ventoy_os_param); i++)
     {
         chksum += *((uint8_t *)(&(chain->os_param)) + i);
@@ -457,6 +568,7 @@ static void ventoy_dump_chain(ventoy_chain_head *chain)
 
     printf("os_param->chksum=0x%x (%s)\n", chain->os_param.chksum, chksum ? "FAILED" : "SUCCESS");
     printf("os_param->vtoy_disk_guid=%02x%02x%02x%02x\n", guid[0], guid[1], guid[2], guid[3]);
+    printf("os_param->vtoy_disk_signature=%02x%02x%02x%02x\n", sig[0], sig[1], sig[2], sig[3]);
     printf("os_param->vtoy_disk_size=%llu\n",     chain->os_param.vtoy_disk_size);
     printf("os_param->vtoy_disk_part_id=%u\n",    chain->os_param.vtoy_disk_part_id);
     printf("os_param->vtoy_disk_part_type=%u\n",  chain->os_param.vtoy_disk_part_type);
@@ -530,19 +642,33 @@ static int ventoy_update_image_location(ventoy_os_param *param)
     }
     
     memcpy(&location->guid, &param->guid, sizeof(ventoy_guid));
-    location->image_sector_size = 2048;
+    location->image_sector_size = g_hddmode ? 512 : 2048;
     location->disk_sector_size  = g_chain->disk_sector_size;
     location->region_count = g_img_chunk_num;
 
     region = location->regions;
 
-    for (i = 0; i < g_img_chunk_num; i++)
+    if (g_hddmode)
+    {
+        for (i = 0; i < g_img_chunk_num; i++)
+        {
+            region->image_sector_count = chunk->disk_end_sector - chunk->disk_start_sector + 1;
+            region->image_start_sector = chunk->img_start_sector * 4;
+            region->disk_start_sector  = chunk->disk_start_sector;
+            region++;
+            chunk++;
+        }
+    }
+    else
     {
-        region->image_sector_count = chunk->img_end_sector - chunk->img_start_sector + 1;
-        region->image_start_sector = chunk->img_start_sector;
-        region->disk_start_sector  = chunk->disk_start_sector;
-        region++;
-        chunk++;
+        for (i = 0; i < g_img_chunk_num; i++)
+        {
+            region->image_sector_count = chunk->img_end_sector - chunk->img_start_sector + 1;
+            region->image_start_sector = chunk->img_start_sector;
+            region->disk_start_sector  = chunk->disk_start_sector;        
+            region++;
+            chunk++;
+        }
     }
 
     return 0;
@@ -553,6 +679,7 @@ int ventoy_boot_vdisk(void *data)
     uint8_t chksum = 0;
     unsigned int i;
     unsigned int drive;
+    ventoy_img_chunk *cur;
     
     (void)data;
 
@@ -562,8 +689,14 @@ int ventoy_boot_vdisk(void *data)
     {
         g_debug = 1;
         printf("### ventoy chain boot begin... ###\n");
+        printf("cmdline: <%s>\n", g_cmdline_copy);
         ventoy_debug_pause();
     }
+    
+    if (strstr(g_cmdline_copy, "sector512"))
+    {
+        g_hddmode = 1;
+    }
 
     g_chain = (ventoy_chain_head *)g_initrd_addr;
     g_chunk = (ventoy_img_chunk *)((char *)g_chain + g_chain->img_chunk_offset);
@@ -601,6 +734,16 @@ int ventoy_boot_vdisk(void *data)
         ventoy_dump_chain(g_chain);
     }
 
+    if (g_hddmode)
+    {
+        for (i = 0; i < g_img_chunk_num; i++)
+        {
+            cur = g_chunk + i;
+            cur->img_start_sector *= 4;
+            cur->img_end_sector = cur->img_end_sector * 4 + 3;
+        }
+    }
+
     drive = ventoy_int13_hook(g_chain);
 
     if (g_debug)
diff --git a/IPXE/ipxe_mod_code/ipxe-3fe683e/src/arch/x86/interface/pcbios/ventoy_int13.c b/IPXE/ipxe_mod_code/ipxe-3fe683e/src/arch/x86/interface/pcbios/ventoy_int13.c
index 9f61c473..cf6fc95b 100644
--- a/IPXE/ipxe_mod_code/ipxe-3fe683e/src/arch/x86/interface/pcbios/ventoy_int13.c
+++ b/IPXE/ipxe_mod_code/ipxe-3fe683e/src/arch/x86/interface/pcbios/ventoy_int13.c
@@ -1051,6 +1051,10 @@ static __asmcall void int13 ( struct i386_all_regs *ix86 ) {
 	/* We simulate a cdrom, so no need to sync hd drive number */
 	//int13_check_num_drives();
 
+    #if VTOY_DEBUG
+    printf("int13 0x%x 0x%x\n", bios_drive, command); sleep(1);
+    #endif
+
     if (bios_drive == VENTOY_BIOS_FAKE_DRIVE)
     {
         ix86->regs.dl = g_sandev->exdrive;
@@ -1255,39 +1259,15 @@ static void int13_hook_vector ( void ) {
  * @ret rc		Return status code
  */
 static int int13_load_mbr ( unsigned int drive, struct segoff *address ) {
-	uint16_t status;
-	int discard_b, discard_c, discard_d;
 	uint16_t magic;
 
-	/* Use INT 13, 02 to read the MBR */
-	address->segment = 0;
-	address->offset = 0x7c00;
-	__asm__ __volatile__ ( REAL_CODE ( "pushw %%es\n\t"
-					   "pushl %%ebx\n\t"
-					   "popw %%bx\n\t"
-					   "popw %%es\n\t"
-					   "stc\n\t"
-					   "sti\n\t"
-					   "int $0x13\n\t"
-					   "sti\n\t" /* BIOS bugs */
-					   "jc 1f\n\t"
-					   "xorw %%ax, %%ax\n\t"
-					   "\n1:\n\t"
-					   "popw %%es\n\t" )
-			       : "=a" ( status ), "=b" ( discard_b ),
-				 "=c" ( discard_c ), "=d" ( discard_d )
-			       : "a" ( 0x0201 ), "b" ( *address ),
-				 "c" ( 1 ), "d" ( drive ) );
-	if ( status ) {
-		DBG ( "INT13 drive %02x could not read MBR (status %04x)\n",
-		      drive, status );
-		return -EIO;
-	}
+    address->segment = 0;
+    address->offset = 0x7c00;
+    copy_to_real(address->segment, address->offset, g_sandev->boot_catalog_sector, 512);
 
 	/* Check magic signature */
-	get_real ( magic, address->segment,
-		   ( address->offset +
-		     offsetof ( struct master_boot_record, magic ) ) );
+	get_real ( magic, address->segment, (address->offset + offsetof ( struct master_boot_record, magic ) ) );
+    
 	if ( magic != INT13_MBR_MAGIC ) {
 		DBG ( "INT13 drive %02x does not contain a valid MBR\n",
 		      drive );
@@ -1443,8 +1423,14 @@ unsigned int ventoy_int13_hook (ventoy_chain_head *chain)
     /* hook will copy num_drives to dl when int13 08 was called, so must initialize it's value */
 	get_real(num_drives, BDA_SEG, BDA_NUM_DRIVES);
     
-	//natural_drive = num_drives | 0x80;
-	natural_drive = 0xE0; /* just set a cdrom drive number 224 */
+	if (g_hddmode)
+    {
+        natural_drive = num_drives | 0x80;
+    }
+    else
+    {
+        natural_drive = 0xE0; /* just set a cdrom drive number 224 */
+    }
 
     if (chain->disk_drive >= 0x80 && chain->drive_map >= 0x80)
     {
@@ -1456,8 +1442,8 @@ unsigned int ventoy_int13_hook (ventoy_chain_head *chain)
     g_sandev = zalloc(sizeof(struct san_device) + sizeof(struct int13_data));
     g_sandev->priv = int13 = (struct int13_data *)(g_sandev + 1);
     g_sandev->drive = int13->natural_drive = natural_drive;
-    g_sandev->is_cdrom = 1;
-    g_sandev->blksize_shift = 2;
+    g_sandev->is_cdrom = g_hddmode ? 0 : 1;
+    g_sandev->blksize_shift = g_hddmode ? 0 : 2;
     g_sandev->capacity.blksize = 512;
     g_sandev->capacity.blocks = chain->virt_img_size_in_bytes / 512;
     g_sandev->exdrive = chain->disk_drive;
@@ -1521,9 +1507,20 @@ int ventoy_int13_boot ( unsigned int drive, void *imginfo, const char *cmdline)
     struct ibft_table *ibft = NULL;
         
 	/* Look for a usable boot sector */
-	if ( ( ( rc = int13_load_eltorito ( drive, &address ) ) != 0 ) &&
-        ( ( rc = int13_load_mbr ( drive, &address ) ) != 0 ))
+    if (g_hddmode)
+    {
+        if ((rc = int13_load_mbr(drive, &address)) != 0)
+        {
+            printf("int13_load_mbr %d\n", rc);
+            return rc;
+        }
+    }
+    else
+    {
+        if ( ( ( rc = int13_load_eltorito ( drive, &address ) ) != 0 ) &&
+            ( ( rc = int13_load_mbr ( drive, &address ) ) != 0 ))
 		return rc;
+    }
 
     if (imginfo)
     {
diff --git a/IPXE/ipxe_mod_code/ipxe-3fe683e/src/include/ventoy.h b/IPXE/ipxe_mod_code/ipxe-3fe683e/src/include/ventoy.h
index 286bb33c..9bb1b3fa 100644
--- a/IPXE/ipxe_mod_code/ipxe-3fe683e/src/include/ventoy.h
+++ b/IPXE/ipxe_mod_code/ipxe-3fe683e/src/include/ventoy.h
@@ -4,6 +4,8 @@
 
 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
 
+//#define VTOY_DEBUG 1
+
 #define grub_uint64_t  uint64_t
 #define grub_uint32_t  uint32_t
 #define grub_uint16_t  uint16_t
@@ -43,7 +45,7 @@ typedef struct ventoy_image_location
 {
     ventoy_guid  guid;
     
-    /* image sector size, currently this value is always 2048 */
+    /* image sector size, 2048/512 */
     grub_uint32_t   image_sector_size;
 
     /* disk sector size, normally the value is 512 */
@@ -86,7 +88,9 @@ typedef struct ventoy_os_param
 
     grub_uint64_t  vtoy_reserved[4];     // Internal use by ventoy
 
-    grub_uint8_t   reserved[31];
+    grub_uint8_t   vtoy_disk_signature[4];
+    
+    grub_uint8_t   reserved[27];
 }ventoy_os_param;
 
 typedef struct ventoy_iso9660_override
@@ -182,6 +186,7 @@ typedef struct ventoy_sector_flag
 #define VENTOY_BOOT_FIXBIN_DRIVE  0xFD
 
 extern int g_debug;
+extern int g_hddmode;
 extern char *g_cmdline_copy;
 extern void *g_initrd_addr;
 extern size_t g_initrd_len;
diff --git a/LiveCD/VTOY/ventoy/ventoy.sh b/LiveCD/VTOY/ventoy/ventoy.sh
index 63233797..baeb1a9b 100644
--- a/LiveCD/VTOY/ventoy/ventoy.sh
+++ b/LiveCD/VTOY/ventoy/ventoy.sh
@@ -20,7 +20,7 @@ get_disk_size() {
 enum_disk() {
     id=1
     rm -f /device.list
-    ls /sys/block/ | grep 'd[a-z]' | while read dev; do
+    ls /sys/block/ | egrep 'd[a-z]|nvme|mmc' | while read dev; do
         if ! [ -b /dev/$dev ]; then
             continue
         fi
@@ -145,7 +145,7 @@ ventoy_configuration() {
         elif [ "$Answer" = "1" ]; then            
             while true; do
                 read -p "Please input the preserve space in MB: "  Answer
-                if echo $Answer | grep -q "^[1-9][0-9]*$"; then
+                if echo $Answer | grep -q "^[0-9][0-9]*$"; then
                     echo $Answer > /preserve.txt
                     break
                 fi
diff --git a/VtoyTool/vtoydm.c b/VtoyTool/vtoydm.c
index 8e748c25..ec0cb953 100644
--- a/VtoyTool/vtoydm.c
+++ b/VtoyTool/vtoydm.c
@@ -507,9 +507,18 @@ static int vtoydm_print_linear_table(const char *img_map_file, const char *diskn
                (sector_start << 2), disk_sector_num, 
                diskname, (unsigned long long)chunk[i].disk_start_sector);
         #else
-        printf("%u %u linear %s1 %llu\n", 
+        if (strstr(diskname, "nvme") || strstr(diskname, "mmc"))
+        {
+            printf("%u %u linear %sp1 %llu\n", 
                (sector_start << 2), disk_sector_num, 
                diskname, (unsigned long long)chunk[i].disk_start_sector - 2048);
+        }
+        else
+        {
+            printf("%u %u linear %s1 %llu\n", 
+               (sector_start << 2), disk_sector_num, 
+               diskname, (unsigned long long)chunk[i].disk_start_sector - 2048);
+        }
         #endif
     }
 
diff --git a/VtoyTool/vtoydump.c b/VtoyTool/vtoydump.c
index 5c3c39c0..ff3a4d26 100644
--- a/VtoyTool/vtoydump.c
+++ b/VtoyTool/vtoydump.c
@@ -120,7 +120,9 @@ typedef struct ventoy_os_param
 
     uint64_t  vtoy_reserved[4];     // Internal use by ventoy
 
-    uint8_t   reserved[31];
+    uint8_t   vtoy_disk_signature[4];
+    
+    uint8_t   reserved[27];
 }ventoy_os_param;
 
 #pragma pack()
@@ -218,6 +220,11 @@ static void vtoy_dump_os_param(ventoy_os_param *param)
     printf("param->vtoy_disk_guid = %02x %02x %02x %02x\n", 
         param->vtoy_disk_guid[0], param->vtoy_disk_guid[1], 
         param->vtoy_disk_guid[2], param->vtoy_disk_guid[3]);
+    
+    printf("param->vtoy_disk_signature = %02x %02x %02x %02x\n", 
+        param->vtoy_disk_signature[0], param->vtoy_disk_signature[1], 
+        param->vtoy_disk_signature[2], param->vtoy_disk_signature[3]);
+    
     printf("param->vtoy_disk_size = %llu\n", (unsigned long long)param->vtoy_disk_size);
     printf("param->vtoy_disk_part_id = %u\n", param->vtoy_disk_part_id);
     printf("param->vtoy_disk_part_type = %u\n", param->vtoy_disk_part_type);
@@ -231,7 +238,7 @@ static void vtoy_dump_os_param(ventoy_os_param *param)
     printf("\n");
 }
 
-static int vtoy_get_disk_guid(const char *diskname, uint8_t *vtguid)
+static int vtoy_get_disk_guid(const char *diskname, uint8_t *vtguid, uint8_t *vtsig)
 {
     int i = 0;
     int fd = 0;
@@ -244,6 +251,9 @@ static int vtoy_get_disk_guid(const char *diskname, uint8_t *vtguid)
     {
         lseek(fd, 0x180, SEEK_SET);
         read(fd, vtguid, 16);
+        
+        lseek(fd, 0x1b8, SEEK_SET);
+        read(fd, vtsig, 4);
         close(fd);
 
         debug("GUID for %s: <", devdisk);
@@ -380,13 +390,14 @@ static int vtoy_find_disk_by_size(unsigned long long size, char *diskname)
     return rc;    
 }
 
-static int vtoy_find_disk_by_guid(uint8_t *guid, char *diskname)
+static int vtoy_find_disk_by_guid(ventoy_os_param *param, char *diskname)
 {
     int rc = 0;
     int count = 0;
     DIR* dir = NULL;
     struct dirent* p = NULL;
     uint8_t vtguid[16];
+    uint8_t vtsig[16];
 
     dir = opendir("/sys/block");
     if (!dir)
@@ -403,8 +414,9 @@ static int vtoy_find_disk_by_guid(uint8_t *guid, char *diskname)
         }
     
         memset(vtguid, 0, sizeof(vtguid));
-        rc = vtoy_get_disk_guid(p->d_name, vtguid);
-        if (rc == 0 && memcmp(vtguid, guid, 16) == 0)
+        rc = vtoy_get_disk_guid(p->d_name, vtguid, vtsig);
+        if (rc == 0 && memcmp(vtguid, param->vtoy_disk_guid, 16) == 0 && 
+            memcmp(vtsig, param->vtoy_disk_signature, 4) == 0)
         {
             sprintf(diskname, "%s", p->d_name);
             count++;
@@ -430,11 +442,11 @@ static int vtoy_print_os_param(ventoy_os_param *param, char *diskname)
     cnt = vtoy_find_disk_by_size(param->vtoy_disk_size, diskname);
     if (cnt > 1)
     {
-        cnt = vtoy_find_disk_by_guid(param->vtoy_disk_guid, diskname);
+        cnt = vtoy_find_disk_by_guid(param, diskname);
     }
     else if (cnt == 0)
     {
-        cnt = vtoy_find_disk_by_guid(param->vtoy_disk_guid, diskname);
+        cnt = vtoy_find_disk_by_guid(param, diskname);
         debug("find 0 disk by size, try with guid cnt=%d...\n", cnt);
     }
 
@@ -462,17 +474,19 @@ static int vtoy_check_device(ventoy_os_param *param, const char *device)
 {
     unsigned long long size; 
     uint8_t vtguid[16] = {0};
+    uint8_t vtsig[4] = {0};
 
     debug("vtoy_check_device for <%s>\n", device);
 
     size = vtoy_get_disk_size_in_byte(device);
-    vtoy_get_disk_guid(device, vtguid);
+    vtoy_get_disk_guid(device, vtguid, vtsig);
 
     debug("param->vtoy_disk_size=%llu size=%llu\n", 
         (unsigned long long)param->vtoy_disk_size, (unsigned long long)size);
 
     if ((param->vtoy_disk_size == size || param->vtoy_disk_size == size + 512) && 
-        memcmp(vtguid, param->vtoy_disk_guid, 16) == 0)
+        memcmp(vtguid, param->vtoy_disk_guid, 16) == 0 &&
+        memcmp(vtsig, param->vtoy_disk_signature, 4) == 0)
     {
         debug("<%s> is right ventoy disk\n", device);
         return 0;
diff --git a/VtoyTool/vtoytool/00/vtoytool_32 b/VtoyTool/vtoytool/00/vtoytool_32
index 07fc3514..cfed7c87 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 4bb15ec6..08b73dee 100644
Binary files a/VtoyTool/vtoytool/00/vtoytool_64 and b/VtoyTool/vtoytool/00/vtoytool_64 differ
diff --git a/VtoyTool/vtoytool/01/vtoytool_64 b/VtoyTool/vtoytool/01/vtoytool_64
index 185bb790..f11765c6 100644
Binary files a/VtoyTool/vtoytool/01/vtoytool_64 and b/VtoyTool/vtoytool/01/vtoytool_64 differ