1. Boot menu over serial supported

2. Optimization for booting Solus
3. Optimization for booting .efi file
4. support deepin-live iso
5. support Endless OS
6. framework for booting .img file

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

@@ -331,7 +331,7 @@ EFI_STATUS EFIAPI ventoy_save_ramdisk_param(VOID)
     Status = gRT->SetVariable(L"VentoyRamDisk", &VarGuid, 
                   EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
                   sizeof(g_ramdisk_param), &(g_ramdisk_param));
-    debug("set efi variable %r", Status);
+    debug("set ramdisk variable %r", Status);
 
     return Status;
 }
@@ -663,17 +663,22 @@ STATIC EFI_STATUS EFIAPI ventoy_parse_cmdline(IN EFI_HANDLE ImageHandle)
     size = StrDecimalToUintn(pPos + 5);
 
     debug("memory addr:%p size:%lu", chain, size);
-    
-    g_chain = AllocatePool(size);
-    CopyMem(g_chain, chain, size);
 
     if (StrStr(pCmdLine, L"memdisk"))
     {
-        g_iso_buf_size = size;
+        g_iso_data_buf = (UINT8 *)chain + sizeof(ventoy_chain_head);
+        g_iso_buf_size = size - sizeof(ventoy_chain_head);
+        debug("memdisk mode iso_buf_size:%u", g_iso_buf_size);
+
+        g_chain = chain;
         gMemdiskMode = TRUE;
     }
     else
     {
+        debug("This is normal mode");
+        g_chain = AllocatePool(size);
+        CopyMem(g_chain, chain, size);
+    
         g_chunk = (ventoy_img_chunk *)((char *)g_chain + g_chain->img_chunk_offset);
         g_img_chunk_num = g_chain->img_chunk_num;
         g_override_chunk = (ventoy_override_chunk *)((char *)g_chain + g_chain->override_chunk_offset);
@@ -725,6 +730,8 @@ STATIC EFI_STATUS EFIAPI ventoy_parse_cmdline(IN EFI_HANDLE ImageHandle)
         }
     }
 
+    ventoy_debug_pause();
+
     FreePool(pCmdLine);
     return EFI_SUCCESS;
 }
@@ -942,15 +949,29 @@ EFI_STATUS EFIAPI VentoyEfiMain
 
     if (gMemdiskMode)
     {
-        g_ramdisk_param.PhyAddr = (UINT64)(UINTN)g_chain;
+        g_ramdisk_param.PhyAddr = (UINT64)(UINTN)g_iso_data_buf;
         g_ramdisk_param.DiskSize = (UINT64)g_iso_buf_size;
 
         ventoy_save_ramdisk_param();
+
+        if (gLoadIsoEfi)
+        {
+            ventoy_find_iso_disk(ImageHandle);
+            ventoy_find_iso_disk_fs(ImageHandle);
+            ventoy_load_isoefi_driver(ImageHandle);
+        }
         
         ventoy_install_blockio(ImageHandle, g_iso_buf_size);
+        ventoy_debug_pause();
+
         Status = ventoy_boot(ImageHandle);
         
         ventoy_delete_ramdisk_param();
+
+        if (gLoadIsoEfi && gBlockData.IsoDriverImage)
+        {
+            gBS->UnloadImage(gBlockData.IsoDriverImage);
+        }
     }
     else
     {

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

@@ -339,6 +339,7 @@ extern ventoy_sector_flag *g_sector_flag;
 extern UINT32 g_sector_flag_num;
 extern BOOLEAN gMemdiskMode;
 extern UINTN g_iso_buf_size;
+extern UINT8 *g_iso_data_buf;
 extern ventoy_grub_param_file_replace *g_file_replace_list;
 extern BOOLEAN g_fixup_iso9660_secover_enable;
 extern EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *g_con_simple_input_ex;

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

@@ -36,6 +36,7 @@
 #include <Protocol/SimpleFileSystem.h>
 #include <Ventoy.h>
 
+UINT8 *g_iso_data_buf = NULL;
 UINTN g_iso_buf_size = 0;
 BOOLEAN gMemdiskMode = FALSE;
 
@@ -254,7 +255,7 @@ EFI_STATUS EFIAPI ventoy_block_io_ramdisk_read
     (VOID)This;
     (VOID)MediaId;
 
-    CopyMem(Buffer, (char *)g_chain + (Lba * 2048), BufferSize);
+    CopyMem(Buffer, g_iso_data_buf + (Lba * 2048), BufferSize);
     
     if (g_blockio_start_record_bcd && FALSE == g_blockio_bcd_read_done)
     {

GRUB2/MOD_SRC/grub-2.04/grub-core/Makefile.core.def

@@ -809,6 +809,16 @@ module = {
   common = commands/blocklist.c;
 };
 
+module = {
+  name = blscfg;
+  common = commands/blscfg.c;
+  common = commands/loadenv.h;
+  enable = powerpc_ieee1275;
+  enable = efi;
+  enable = i386_pc;
+  enable = emu;
+};
+
 module = {
   name = boot;
   common = commands/boot.c;
@@ -986,6 +996,7 @@ module = {
 module = {
   name = loadenv;
   common = commands/loadenv.c;
+  common = commands/loadenv.h;
   common = lib/envblk.c;
 };
 

GRUB2/MOD_SRC/grub-2.04/grub-core/commands/loadenv.c

+/* loadenv.c - command to load/save environment variable.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008,2009,2010  Free Software Foundation, Inc.
+ *
+ *  GRUB 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.
+ *
+ *  GRUB 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 GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+#include <grub/mm.h>
+#include <grub/file.h>
+#include <grub/disk.h>
+#include <grub/misc.h>
+#include <grub/env.h>
+#include <grub/partition.h>
+#include <grub/lib/envblk.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+
+#include "loadenv.h"
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const struct grub_arg_option options[] =
+  {
+    /* TRANSLATORS: This option is used to override default filename
+       for loading and storing environment.  */
+    {"file", 'f', 0, N_("Specify filename."), 0, ARG_TYPE_PATHNAME},
+    {"skip-sig", 's', 0,
+     N_("Skip signature-checking of the environment file."), 0, ARG_TYPE_NONE},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+/* Opens 'filename' with compression filters disabled. Optionally disables the
+   PUBKEY filter (that insists upon properly signed files) as well.  PUBKEY
+   filter is restored before the function returns. */
+static grub_file_t
+open_envblk_file (char *filename,
+		  enum grub_file_type type)
+{
+  grub_file_t file;
+  char *buf = 0;
+
+  if (! filename)
+    {
+      const char *prefix;
+      int len;
+
+      prefix = grub_env_get ("prefix");
+      if (! prefix)
+        {
+          grub_error (GRUB_ERR_FILE_NOT_FOUND, N_("variable `%s' isn't set"), "prefix");
+          return 0;
+        }
+
+      len = grub_strlen (prefix);
+      buf = grub_malloc (len + 1 + sizeof (GRUB_ENVBLK_DEFCFG));
+      if (! buf)
+        return 0;
+      filename = buf;
+
+      grub_strcpy (filename, prefix);
+      filename[len] = '/';
+      grub_strcpy (filename + len + 1, GRUB_ENVBLK_DEFCFG);
+    }
+
+  file = grub_file_open (filename, type);
+
+  grub_free (buf);
+  return file;
+}
+
+static grub_err_t
+grub_cmd_load_env (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+  grub_file_t file;
+  grub_envblk_t envblk;
+  grub_env_whitelist_t whitelist;
+
+  whitelist.len = argc;
+  whitelist.list = args;
+
+  /* state[0] is the -f flag; state[1] is the --skip-sig flag */
+  file = open_envblk_file ((state[0].set) ? state[0].arg : 0,
+			   GRUB_FILE_TYPE_LOADENV
+			   | (state[1].set
+			      ? GRUB_FILE_TYPE_SKIP_SIGNATURE : GRUB_FILE_TYPE_NONE));
+  if (! file)
+    return grub_errno;
+
+  envblk = read_envblk_file (file);
+  if (! envblk)
+    goto fail;
+
+  /* argc > 0 indicates caller provided a whitelist of variables to read. */
+  grub_envblk_iterate (envblk, argc > 0 ? &whitelist : 0, set_var);
+  grub_envblk_close (envblk);
+
+ fail:
+  grub_file_close (file);
+  return grub_errno;
+}
+
+/* Print all variables in current context.  */
+static int
+print_var (const char *name, const char *value,
+           void *hook_data __attribute__ ((unused)))
+{
+  grub_printf ("%s=%s\n", name, value);
+  return 0;
+}
+
+static grub_err_t
+grub_cmd_list_env (grub_extcmd_context_t ctxt,
+		   int argc __attribute__ ((unused)),
+		   char **args __attribute__ ((unused)))
+{
+  struct grub_arg_list *state = ctxt->state;
+  grub_file_t file;
+  grub_envblk_t envblk;
+
+  file = open_envblk_file ((state[0].set) ? state[0].arg : 0,
+			   GRUB_FILE_TYPE_LOADENV
+			   | (state[1].set
+			      ? GRUB_FILE_TYPE_SKIP_SIGNATURE : GRUB_FILE_TYPE_NONE));
+  if (! file)
+    return grub_errno;
+
+  envblk = read_envblk_file (file);
+  if (! envblk)
+    goto fail;
+
+  grub_envblk_iterate (envblk, NULL, print_var);
+  grub_envblk_close (envblk);
+
+ fail:
+  grub_file_close (file);
+  return grub_errno;
+}
+
+/* Used to maintain a variable length of blocklists internally.  */
+struct blocklist
+{
+  grub_disk_addr_t sector;
+  unsigned offset;
+  unsigned length;
+  struct blocklist *next;
+};
+
+static void
+free_blocklists (struct blocklist *p)
+{
+  struct blocklist *q;
+
+  for (; p; p = q)
+    {
+      q = p->next;
+      grub_free (p);
+    }
+}
+
+static grub_err_t
+check_blocklists (grub_envblk_t envblk, struct blocklist *blocklists,
+                  grub_file_t file)
+{
+  grub_size_t total_length;
+  grub_size_t index;
+  grub_disk_t disk;
+  grub_disk_addr_t part_start;
+  struct blocklist *p;
+  char *buf;
+
+  /* Sanity checks.  */
+  total_length = 0;
+  for (p = blocklists; p; p = p->next)
+    {
+      struct blocklist *q;
+      /* Check if any pair of blocks overlap.  */
+      for (q = p->next; q; q = q->next)
+        {
+	  grub_disk_addr_t s1, s2;
+	  grub_disk_addr_t e1, e2;
+
+	  s1 = p->sector;
+	  e1 = s1 + ((p->length + GRUB_DISK_SECTOR_SIZE - 1) >> GRUB_DISK_SECTOR_BITS);
+
+	  s2 = q->sector;
+	  e2 = s2 + ((q->length + GRUB_DISK_SECTOR_SIZE - 1) >> GRUB_DISK_SECTOR_BITS);
+
+	  if (s1 < e2 && s2 < e1)
+            {
+              /* This might be actually valid, but it is unbelievable that
+                 any filesystem makes such a silly allocation.  */
+              return grub_error (GRUB_ERR_BAD_FS, "malformed file");
+            }
+        }
+
+      total_length += p->length;
+    }
+
+  if (total_length != grub_file_size (file))
+    {
+      /* Maybe sparse, unallocated sectors. No way in GRUB.  */
+      return grub_error (GRUB_ERR_BAD_FILE_TYPE, "sparse file not allowed");
+    }
+
+  /* One more sanity check. Re-read all sectors by blocklists, and compare
+     those with the data read via a file.  */
+  disk = file->device->disk;
+
+  part_start = grub_partition_get_start (disk->partition);
+
+  buf = grub_envblk_buffer (envblk);
+  char *blockbuf = NULL;
+  grub_size_t blockbuf_len = 0;
+  for (p = blocklists, index = 0; p; index += p->length, p = p->next)
+    {
+      if (p->length > blockbuf_len)
+	{
+	  grub_free (blockbuf);
+	  blockbuf_len = 2 * p->length;
+	  blockbuf = grub_malloc (blockbuf_len);
+	  if (!blockbuf)
+	    return grub_errno;
+	}
+
+      if (grub_disk_read (disk, p->sector - part_start,
+                          p->offset, p->length, blockbuf))
+        return grub_errno;
+
+      if (grub_memcmp (buf + index, blockbuf, p->length) != 0)
+	return grub_error (GRUB_ERR_FILE_READ_ERROR, "invalid blocklist");
+    }
+
+  return GRUB_ERR_NONE;
+}
+
+static int
+write_blocklists (grub_envblk_t envblk, struct blocklist *blocklists,
+                  grub_file_t file)
+{
+  char *buf;
+  grub_disk_t disk;
+  grub_disk_addr_t part_start;
+  struct blocklist *p;
+  grub_size_t index;
+
+  buf = grub_envblk_buffer (envblk);
+  disk = file->device->disk;
+  part_start = grub_partition_get_start (disk->partition);
+
+  index = 0;
+  for (p = blocklists; p; index += p->length, p = p->next)
+    {
+      if (grub_disk_write (disk, p->sector - part_start,
+                           p->offset, p->length, buf + index))
+        return 0;
+    }
+
+  return 1;
+}
+
+/* Context for grub_cmd_save_env.  */
+struct grub_cmd_save_env_ctx
+{
+  struct blocklist *head, *tail;
+};
+
+/* Store blocklists in a linked list.  */
+static void
+save_env_read_hook (grub_disk_addr_t sector, unsigned offset, unsigned length,
+		    void *data)
+{
+  struct grub_cmd_save_env_ctx *ctx = data;
+  struct blocklist *block;
+
+  block = grub_malloc (sizeof (*block));
+  if (! block)
+    return;
+
+  block->sector = sector;
+  block->offset = offset;
+  block->length = length;
+
+  /* Slightly complicated, because the list should be FIFO.  */
+  block->next = 0;
+  if (ctx->tail)
+    ctx->tail->next = block;
+  ctx->tail = block;
+  if (! ctx->head)
+    ctx->head = block;
+}
+
+static grub_err_t
+grub_cmd_save_env (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+  grub_file_t file;
+  grub_envblk_t envblk;
+  struct grub_cmd_save_env_ctx ctx = {
+    .head = 0,
+    .tail = 0
+  };
+
+  if (! argc)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "no variable is specified");
+
+  file = open_envblk_file ((state[0].set) ? state[0].arg : 0,
+			   GRUB_FILE_TYPE_SAVEENV
+			   | GRUB_FILE_TYPE_SKIP_SIGNATURE);
+  if (! file)
+    return grub_errno;
+
+  if (! file->device->disk)
+    {
+      grub_file_close (file);
+      return grub_error (GRUB_ERR_BAD_DEVICE, "disk device required");
+    }
+
+  file->read_hook = save_env_read_hook;
+  file->read_hook_data = &ctx;
+  envblk = read_envblk_file (file);
+  file->read_hook = 0;
+  if (! envblk)
+    goto fail;
+
+  if (check_blocklists (envblk, ctx.head, file))
+    goto fail;
+
+  while (argc)
+    {
+      const char *value;
+
+      value = grub_env_get (args[0]);
+      if (value)
+        {
+          if (! grub_envblk_set (envblk, args[0], value))
+            {
+              grub_error (GRUB_ERR_BAD_ARGUMENT, "environment block too small");
+              goto fail;
+            }
+        }
+      else
+	grub_envblk_delete (envblk, args[0]);
+
+      argc--;
+      args++;
+    }
+
+  write_blocklists (envblk, ctx.head, file);
+
+ fail:
+  if (envblk)
+    grub_envblk_close (envblk);
+  free_blocklists (ctx.head);
+  grub_file_close (file);
+  return grub_errno;
+}
+
+static grub_extcmd_t cmd_load, cmd_list, cmd_save;
+
+GRUB_MOD_INIT(loadenv)
+{
+  cmd_load =
+    grub_register_extcmd ("load_env", grub_cmd_load_env, 0,
+			  N_("[-f FILE] [-s|--skip-sig] [variable_name_to_whitelist] [...]"),
+			  N_("Load variables from environment block file."),
+			  options);
+  cmd_list =
+    grub_register_extcmd ("list_env", grub_cmd_list_env, 0, N_("[-f FILE]"),
+			  N_("List variables from environment block file."),
+			  options);
+  cmd_save =
+    grub_register_extcmd ("save_env", grub_cmd_save_env, 0,
+			  N_("[-f FILE] variable_name [...]"),
+			  N_("Save variables to environment block file."),
+			  options);
+}
+
+GRUB_MOD_FINI(loadenv)
+{
+  grub_unregister_extcmd (cmd_load);
+  grub_unregister_extcmd (cmd_list);
+  grub_unregister_extcmd (cmd_save);
+}

GRUB2/MOD_SRC/grub-2.04/grub-core/commands/loadenv.h

+/* loadenv.c - command to load/save environment variable.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008,2009,2010  Free Software Foundation, Inc.
+ *
+ *  GRUB 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.
+ *
+ *  GRUB 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 GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+static grub_envblk_t UNUSED
+read_envblk_file (grub_file_t file)
+{
+  grub_off_t offset = 0;
+  char *buf;
+  grub_size_t size = grub_file_size (file);
+  grub_envblk_t envblk;
+
+  buf = grub_malloc (size);
+  if (! buf)
+    return 0;
+
+  while (size > 0)
+    {
+      grub_ssize_t ret;
+
+      ret = grub_file_read (file, buf + offset, size);
+      if (ret <= 0)
+        {
+          grub_free (buf);
+          return 0;
+        }
+
+      size -= ret;
+      offset += ret;
+    }
+
+  envblk = grub_envblk_open (buf, offset);
+  if (! envblk)
+    {
+      grub_free (buf);
+      grub_error (GRUB_ERR_BAD_FILE_TYPE, "invalid environment block");
+      return 0;
+    }
+
+  return envblk;
+}
+
+struct grub_env_whitelist
+{
+  grub_size_t len;
+  char **list;
+};
+typedef struct grub_env_whitelist grub_env_whitelist_t;
+
+static int UNUSED
+test_whitelist_membership (const char* name,
+                           const grub_env_whitelist_t* whitelist)
+{
+  grub_size_t i;
+
+  for (i = 0; i < whitelist->len; i++)
+    if (grub_strcmp (name, whitelist->list[i]) == 0)
+      return 1;  /* found it */
+
+  return 0;  /* not found */
+}
+
+/* Helper for grub_cmd_load_env.  */
+static int UNUSED
+set_var (const char *name, const char *value, void *whitelist)
+{
+  if (! whitelist)
+    {
+      grub_env_set (name, value);
+      return 0;
+    }
+
+  if (test_whitelist_membership (name,
+				 (const grub_env_whitelist_t *) whitelist))
+    grub_env_set (name, value);
+
+  return 0;
+}

GRUB2/MOD_SRC/grub-2.04/grub-core/commands/menuentry.c

+/* menuentry.c - menuentry command */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2010  Free Software Foundation, Inc.
+ *
+ *  GRUB 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.
+ *
+ *  GRUB 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 GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/extcmd.h>
+#include <grub/i18n.h>
+#include <grub/normal.h>
+
+static const struct grub_arg_option options[] =
+  {
+    {"class", 1, GRUB_ARG_OPTION_REPEATABLE,
+     N_("Menu entry type."), N_("STRING"), ARG_TYPE_STRING},
+    {"users", 2, 0,
+     N_("List of users allowed to boot this entry."), N_("USERNAME[,USERNAME]"),
+     ARG_TYPE_STRING},
+    {"hotkey", 3, 0,
+     N_("Keyboard key to quickly boot this entry."), N_("KEYBOARD_KEY"), ARG_TYPE_STRING},
+    {"source", 4, 0,
+     N_("Use STRING as menu entry body."), N_("STRING"), ARG_TYPE_STRING},
+    {"id", 0, 0, N_("Menu entry identifier."), N_("STRING"), ARG_TYPE_STRING},
+    /* TRANSLATORS: menu entry can either be bootable by anyone or only by
+       handful of users. By default when security is active only superusers can
+       boot a given menu entry. With --unrestricted (this option)
+       anyone can boot it.  */
+    {"unrestricted", 0, 0, N_("This entry can be booted by any user."),
+     0, ARG_TYPE_NONE},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+static struct
+{
+  const char *name;
+  int key;
+} hotkey_aliases[] =
+  {
+    {"backspace", GRUB_TERM_BACKSPACE},
+    {"tab", GRUB_TERM_TAB},
+    {"delete", GRUB_TERM_KEY_DC},
+    {"insert", GRUB_TERM_KEY_INSERT},
+    {"f1", GRUB_TERM_KEY_F1},
+    {"f2", GRUB_TERM_KEY_F2},
+    {"f3", GRUB_TERM_KEY_F3},
+    {"f4", GRUB_TERM_KEY_F4},
+    {"f5", GRUB_TERM_KEY_F5},
+    {"f6", GRUB_TERM_KEY_F6},
+    {"f7", GRUB_TERM_KEY_F7},
+    {"f8", GRUB_TERM_KEY_F8},
+    {"f9", GRUB_TERM_KEY_F9},
+    {"f10", GRUB_TERM_KEY_F10},
+    {"f11", GRUB_TERM_KEY_F11},
+    {"f12", GRUB_TERM_KEY_F12},
+  };
+
+/* Add a menu entry to the current menu context (as given by the environment
+   variable data slot `menu').  As the configuration file is read, the script
+   parser calls this when a menu entry is to be created.  */
+grub_err_t
+grub_normal_add_menu_entry (int argc, const char **args,
+			    char **classes, const char *id,
+			    const char *users, const char *hotkey,
+			    const char *prefix, const char *sourcecode,
+			    int submenu, int *index, struct bls_entry *bls)
+{
+  int menu_hotkey = 0;
+  char **menu_args = NULL;
+  char *menu_users = NULL;
+  char *menu_title = NULL;
+  char *menu_sourcecode = NULL;
+  char *menu_id = NULL;
+  struct grub_menu_entry_class *menu_classes = NULL;
+
+  grub_menu_t menu;
+  grub_menu_entry_t *last;
+
+  menu = grub_env_get_menu ();
+  if (! menu)
+    return grub_error (GRUB_ERR_MENU, "no menu context");
+
+  last = &menu->entry_list;
+
+  menu_sourcecode = grub_xasprintf ("%s%s", prefix ?: "", sourcecode);
+  if (! menu_sourcecode)
+    return grub_errno;
+
+  if (classes && classes[0])
+    {
+      int i;
+      for (i = 0; classes[i]; i++); /* count # of menuentry classes */
+      menu_classes = grub_zalloc (sizeof (struct grub_menu_entry_class)
+				  * (i + 1));
+      if (! menu_classes)
+	goto fail;
+
+      for (i = 0; classes[i]; i++)
+	{
+	  menu_classes[i].name = grub_strdup (classes[i]);
+	  if (! menu_classes[i].name)
+	    goto fail;
+	  menu_classes[i].next = classes[i + 1] ? &menu_classes[i + 1] : NULL;
+	}
+    }
+
+  if (users)
+    {
+      menu_users = grub_strdup (users);
+      if (! menu_users)
+	goto fail;
+    }
+
+  if (hotkey)
+    {
+      unsigned i;
+      for (i = 0; i < ARRAY_SIZE (hotkey_aliases); i++)
+	if (grub_strcmp (hotkey, hotkey_aliases[i].name) == 0)
+	  {
+	    menu_hotkey = hotkey_aliases[i].key;
+	    break;
+	  }
+      if (i == ARRAY_SIZE (hotkey_aliases))
+	menu_hotkey = hotkey[0];
+    }
+
+  if (! argc)
+    {
+      grub_error (GRUB_ERR_MENU, "menuentry is missing title");
+      goto fail;
+    }
+
+  menu_title = grub_strdup (args[0]);
+  if (! menu_title)
+    goto fail;
+
+  grub_dprintf ("menu", "id:\"%s\"\n", id);
+  grub_dprintf ("menu", "title:\"%s\"\n", menu_title);
+  menu_id = grub_strdup (id ? : menu_title);
+  if (! menu_id)
+    goto fail;
+  grub_dprintf ("menu", "menu_id:\"%s\"\n", menu_id);
+
+  /* Save argc, args to pass as parameters to block arg later. */
+  menu_args = grub_malloc (sizeof (char*) * (argc + 1));
+  if (! menu_args)
+    goto fail;
+
+  {
+    int i;
+    for (i = 0; i < argc; i++)
+      {
+	menu_args[i] = grub_strdup (args[i]);
+	if (! menu_args[i])
+	  goto fail;
+      }
+    menu_args[argc] = NULL;
+  }
+
+  /* Add the menu entry at the end of the list.  */
+  int ind=0;
+  while (*last)
+    {
+      ind++;
+      last = &(*last)->next;
+    }
+
+  *last = grub_zalloc (sizeof (**last));
+  if (! *last)
+    goto fail;
+
+  (*last)->title = menu_title;
+  (*last)->id = menu_id;
+  (*last)->hotkey = menu_hotkey;
+  (*last)->classes = menu_classes;
+  if (menu_users)
+    (*last)->restricted = 1;
+  (*last)->users = menu_users;
+  (*last)->argc = argc;
+  (*last)->args = menu_args;
+  (*last)->sourcecode = menu_sourcecode;
+  (*last)->submenu = submenu;
+  (*last)->bls = bls;
+
+  menu->size++;
+  if (index)
+    *index = ind;
+  return GRUB_ERR_NONE;
+
+ fail:
+
+  grub_free (menu_sourcecode);
+  {
+    int i;
+    for (i = 0; menu_classes && menu_classes[i].name; i++)
+      grub_free (menu_classes[i].name);
+    grub_free (menu_classes);
+  }
+
+  {
+    int i;
+    for (i = 0; menu_args && menu_args[i]; i++)
+      grub_free (menu_args[i]);
+    grub_free (menu_args);
+  }
+
+  grub_free (menu_users);
+  grub_free (menu_title);
+  grub_free (menu_id);
+  return grub_errno;
+}
+
+static char *
+setparams_prefix (int argc, char **args)
+{
+  int i;
+  int j;
+  char *p;
+  char *result;
+  grub_size_t len = 10;
+
+  /* Count resulting string length */
+  for (i = 0; i < argc; i++)
+    {
+      len += 3; /* 3 = 1 space + 2 quotes */
+      p = args[i];
+      while (*p)
+	len += (*p++ == '\'' ? 3 : 1);
+    }
+
+  result = grub_malloc (len + 2);
+  if (! result)
+    return 0;
+
+  grub_strcpy (result, "setparams");
+  p = result + 9;
+
+  for (j = 0; j < argc; j++)
+    {
+      *p++ = ' ';
+      *p++ = '\'';
+      p = grub_strchrsub (p, args[j], '\'', "'\\''");
+      *p++ = '\'';
+    }
+  *p++ = '\n';
+  *p = '\0';
+  return result;
+}
+
+static grub_err_t
+grub_cmd_menuentry (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  char ch;
+  char *src;
+  char *prefix;
+  unsigned len;
+  grub_err_t r;
+  const char *users;
+
+  if (! argc)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "missing arguments");
+
+  if (ctxt->state[3].set && ctxt->script)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "multiple menuentry definitions");
+
+  if (! ctxt->state[3].set && ! ctxt->script)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "no menuentry definition");
+
+  if (ctxt->state[1].set)
+    users = ctxt->state[1].arg;
+  else if (ctxt->state[5].set)
+    users = NULL;
+  else
+    users = "";
+
+  if (! ctxt->script)
+    return grub_normal_add_menu_entry (argc, (const char **) args,
+				       (ctxt->state[0].set ? ctxt->state[0].args
+					: NULL),
+				       ctxt->state[4].arg,
+				       users,
+				       ctxt->state[2].arg, 0,
+				       ctxt->state[3].arg,
+				       ctxt->extcmd->cmd->name[0] == 's',
+				       NULL, NULL);
+
+  src = args[argc - 1];
+  args[argc - 1] = NULL;
+
+  len = grub_strlen(src);
+  ch = src[len - 1];
+  src[len - 1] = '\0';
+
+  prefix = setparams_prefix (argc - 1, args);
+  if (! prefix)
+    return grub_errno;
+
+  r = grub_normal_add_menu_entry (argc - 1, (const char **) args,
+				  ctxt->state[0].args, ctxt->state[4].arg,
+				  users,
+				  ctxt->state[2].arg, prefix, src + 1,
+				  ctxt->extcmd->cmd->name[0] == 's', NULL,
+				  NULL);
+
+  src[len - 1] = ch;
+  args[argc - 1] = src;
+  grub_free (prefix);
+  return r;
+}
+
+static grub_extcmd_t cmd, cmd_sub;
+
+void
+grub_menu_init (void)
+{
+  cmd = grub_register_extcmd ("menuentry", grub_cmd_menuentry,
+			      GRUB_COMMAND_FLAG_BLOCKS
+			      | GRUB_COMMAND_ACCEPT_DASH
+			      | GRUB_COMMAND_FLAG_EXTRACTOR,
+			      N_("BLOCK"), N_("Define a menu entry."), options);
+  cmd_sub = grub_register_extcmd ("submenu", grub_cmd_menuentry,
+				  GRUB_COMMAND_FLAG_BLOCKS
+				  | GRUB_COMMAND_ACCEPT_DASH
+				  | GRUB_COMMAND_FLAG_EXTRACTOR,
+				  N_("BLOCK"), N_("Define a submenu."),
+				  options);
+}
+
+void
+grub_menu_fini (void)
+{
+  grub_unregister_extcmd (cmd);
+  grub_unregister_extcmd (cmd_sub);
+}

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

@@ -109,6 +109,52 @@ grub_env_write_root (struct grub_env_var *var __attribute__ ((unused)),
   return grub_strdup (val);
 }
 
+static int g_ventoy_hook_root = 0;
+void ventoy_env_hook_root(int hook)
+{
+    g_ventoy_hook_root = hook;
+}
+
+static char *
+ventoy_env_write_root (struct grub_env_var *var __attribute__ ((unused)),
+		     const char *val)
+{
+    const char *pos = val;
+    char buf[256];
+    
+    if (g_ventoy_hook_root == 0)
+    {
+        return grub_env_write_root(var, val);
+    }
+
+    if (pos[0] == '(')
+    {
+        pos++;
+    }
+
+    if (grub_strncmp(pos, "vtimghd", 7) == 0)
+    {
+        return grub_env_write_root(var, val);
+    }
+
+    pos = grub_strchr(val, ',');
+    if (!pos)
+    {
+        return grub_env_write_root(var, val);
+    }
+
+    if (val[0] == '(')
+    {
+        grub_snprintf(buf, sizeof(buf), "(vtimghd%s", pos);
+    }
+    else
+    {
+        grub_snprintf(buf, sizeof(buf), "vtimghd%s", pos);
+    }
+
+    return grub_env_write_root(var, buf);
+}
+
 static void
 grub_set_prefix_and_root (void)
 {
@@ -123,7 +169,7 @@ grub_set_prefix_and_root (void)
     if (header->type == OBJ_TYPE_PREFIX)
       prefix = (char *) header + sizeof (struct grub_module_header);
 
-  grub_register_variable_hook ("root", 0, grub_env_write_root);
+  grub_register_variable_hook ("root", 0, ventoy_env_write_root);
 
   grub_machine_get_bootlocation (&fwdevice, &fwpath);
 

GRUB2/MOD_SRC/grub-2.04/grub-core/normal/menu.c

@@ -803,6 +803,7 @@ run_menu (grub_menu_t menu, int nested, int *auto_boot)
 	      goto refresh;
 
         case GRUB_TERM_KEY_F2:
+        case '2':
             if (0 == g_ventoy_fn_mutex) {
                 cmdstr = grub_env_get("VTOY_F2_CMD");
                 if (cmdstr)
@@ -816,6 +817,7 @@ run_menu (grub_menu_t menu, int nested, int *auto_boot)
             }
             break;
         case GRUB_TERM_KEY_F3:
+        case '3':
             if (0 == g_ventoy_fn_mutex) {
                 cmdstr = grub_env_get("VTOY_F3_CMD");
                 if (cmdstr)
@@ -827,6 +829,7 @@ run_menu (grub_menu_t menu, int nested, int *auto_boot)
             }
             break;
         case GRUB_TERM_KEY_F4:
+        case '4':
             if (0 == g_ventoy_fn_mutex) {
                 cmdstr = grub_env_get("VTOY_F4_CMD");
                 if (cmdstr)
@@ -840,6 +843,7 @@ run_menu (grub_menu_t menu, int nested, int *auto_boot)
             }
             break;
         case GRUB_TERM_KEY_F5:
+        case '5':
             if (0 == g_ventoy_fn_mutex) {
                 cmdstr = grub_env_get("VTOY_F5_CMD");
                 if (cmdstr)
@@ -853,6 +857,7 @@ run_menu (grub_menu_t menu, int nested, int *auto_boot)
             }
             break;
         case GRUB_TERM_KEY_F6:
+        case '6':
             if (0 == g_ventoy_fn_mutex) {
                 cmdstr = grub_env_get("VTOY_F6_CMD");
                 if (cmdstr)
@@ -866,6 +871,7 @@ run_menu (grub_menu_t menu, int nested, int *auto_boot)
             }
             break;
         case GRUB_TERM_KEY_F7:
+        case '7':
             cmdstr = grub_env_get("VTOY_F7_CMD");
             if (cmdstr)
             {
@@ -875,6 +881,7 @@ run_menu (grub_menu_t menu, int nested, int *auto_boot)
             }
             break;
         case GRUB_TERM_KEY_F1:
+        case '1':
             menu_fini ();
             g_ventoy_memdisk_mode = 1 - g_ventoy_memdisk_mode;
             g_ventoy_menu_refresh = 1;

GRUB2/MOD_SRC/grub-2.04/grub-core/normal/menu_text.c

@@ -180,11 +180,13 @@ command-line or ESC to discard edits and return to the GRUB menu."),
 
       if (nested)
 	{
+      #if 0
 	  ret += grub_print_message_indented_real
 	    (_("Press enter to boot the selected OS, "
 	       "`e' to edit the commands before booting "
 	       "or `c' for a command-line. ESC to return previous menu."),
 	     STANDARD_MARGIN, STANDARD_MARGIN, term, dry_run);
+      #endif
 	}
       else
 	{
@@ -195,7 +197,7 @@ command-line or ESC to discard edits and return to the GRUB menu."),
       
 	  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"),
-	     STANDARD_MARGIN, STANDARD_MARGIN, term, dry_run);
+	     3, 6, term, dry_run);
 	}	
     }
   return ret;

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

@@ -34,6 +34,7 @@
 #include <grub/i18n.h>
 #include <grub/net.h>
 #include <grub/misc.h>
+#include <grub/kernel.h>
 #ifdef GRUB_MACHINE_EFI
 #include <grub/efi/efi.h>
 #endif
@@ -317,6 +318,38 @@ static grub_err_t ventoy_cmd_strstr(grub_extcmd_context_t ctxt, int argc, char *
     return (grub_strstr(args[0], args[1])) ? 0 : 1;
 }
 
+static grub_err_t ventoy_cmd_strbegin(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    char *c0, *c1;
+    
+    (void)ctxt;
+
+    if (argc != 2)
+    {
+        return 1;
+    }
+
+    c0 = args[0];
+    c1 = args[1];
+
+    while (*c0 && *c1)
+    {
+        if (*c0 != *c1)
+        {
+            return 1;
+        }
+        c0++;
+        c1++;
+    }
+
+    if (*c1)
+    {
+        return 1;
+    }
+
+    return 0;
+}
+
 static grub_err_t ventoy_cmd_incr(grub_extcmd_context_t ctxt, int argc, char **args)
 {
     long value_long = 0;
@@ -410,7 +443,122 @@ static grub_err_t ventoy_cmd_load_wimboot(grub_extcmd_context_t ctxt, int argc,
     return 0;
 }
 
-static grub_err_t ventoy_cmd_load_iso_to_mem(grub_extcmd_context_t ctxt, int argc, char **args)
+static int ventoy_load_efiboot_template(char **buf, int *datalen, int *direntoff)
+{
+    int len;
+    grub_file_t file;
+    char exec[128];
+    char *data = NULL;
+    grub_uint32_t offset;
+
+    file = ventoy_grub_file_open(GRUB_FILE_TYPE_LINUX_INITRD, "%s/ventoy/ventoy_efiboot.img.xz", ventoy_get_env("vtoy_efi_part"));
+    if (file == NULL)
+    {
+        debug("failed to open file <%s>\n", "ventoy_efiboot.img.xz");
+        return 1;
+    }
+
+    len = (int)file->size;
+    
+    data = (char *)grub_malloc(file->size);
+    if (!data)
+    {
+        return 1;
+    }
+    
+    grub_file_read(file, data, file->size);
+    grub_file_close(file); 
+
+    grub_snprintf(exec, sizeof(exec), "loopback efiboot mem:0x%llx:size:%d", (ulonglong)(ulong)data, len);
+    grub_script_execute_sourcecode(exec);
+
+    file = grub_file_open("(efiboot)/EFI/BOOT/BOOTX64.EFI", GRUB_FILE_TYPE_LINUX_INITRD);    
+    offset = (grub_uint32_t)grub_iso9660_get_last_file_dirent_pos(file);
+    grub_file_close(file);
+    
+    grub_script_execute_sourcecode("loopback -d efiboot");
+
+    *buf = data;
+    *datalen = len;
+    *direntoff = offset + 2;
+
+    return 0;
+}
+
+static grub_err_t ventoy_cmd_concat_efi_iso(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    int len = 0;
+    int totlen = 0;
+    int offset = 0;
+    grub_file_t file;
+    char name[32];
+    char value[32];
+    char *buf = NULL;
+    char *data = NULL;
+    ventoy_iso9660_override *dirent;
+    
+    (void)ctxt;
+
+    if (argc != 2)
+    {
+        return 1;
+    }
+
+    totlen = sizeof(ventoy_chain_head);
+
+    if (ventoy_load_efiboot_template(&buf, &len, &offset))
+    {
+        debug("failed to load efiboot template %d\n", len);
+        return 1;
+    }
+
+    totlen += len;
+    
+    debug("efiboot template len:%d offset:%d\n", len, offset);
+
+    file = ventoy_grub_file_open(GRUB_FILE_TYPE_LINUX_INITRD, "%s", args[0]);
+    if (file == NULL)
+    {
+        debug("failed to open file <%s>\n", args[0]);
+        return 1;
+    }
+
+    totlen += ventoy_align_2k(file->size);
+
+    dirent = (ventoy_iso9660_override *)(buf + offset);
+    dirent->first_sector = len / 2048;
+    dirent->first_sector_be = grub_swap_bytes32(dirent->first_sector);
+    dirent->size = (grub_uint32_t)file->size;
+    dirent->size_be = grub_swap_bytes32(dirent->size);
+
+    debug("rawiso len:%d efilen:%d total:%d\n", len, (int)file->size, totlen);
+
+#ifdef GRUB_MACHINE_EFI
+    data = (char *)grub_efi_allocate_iso_buf(totlen);
+#else
+    data = (char *)grub_malloc(totlen);
+#endif   
+
+    ventoy_fill_os_param(file, (ventoy_os_param *)data);
+
+    grub_memcpy(data + sizeof(ventoy_chain_head), buf, len);
+    grub_check_free(buf);
+
+    grub_file_read(file, data + sizeof(ventoy_chain_head) + len, file->size);
+    grub_file_close(file); 
+
+    grub_snprintf(name, sizeof(name), "%s_addr", args[1]);
+    grub_snprintf(value, sizeof(value), "0x%llx", (ulonglong)(ulong)data);
+    grub_env_set(name, value);
+    
+    grub_snprintf(name, sizeof(name), "%s_size", args[1]);
+    grub_snprintf(value, sizeof(value), "%d", (int)(totlen));
+    grub_env_set(name, value);
+
+    return 0;
+}
+
+static grub_err_t ventoy_cmd_load_file_to_mem(grub_extcmd_context_t ctxt, int argc, char **args)
 {
     int rc = 1;
     char name[32];
@@ -430,7 +578,7 @@ static grub_err_t ventoy_cmd_load_iso_to_mem(grub_extcmd_context_t ctxt, int arg
     file = ventoy_grub_file_open(VENTOY_FILE_TYPE, "%s", args[0]);
     if (file == NULL)
     {
-        debug("failed to open file <%s> for udf check\n", args[0]);
+        debug("failed to open file <%s>\n", args[0]);
         return 1;
     }
 
@@ -456,6 +604,57 @@ static grub_err_t ventoy_cmd_load_iso_to_mem(grub_extcmd_context_t ctxt, int arg
     return rc;
 }
 
+static grub_err_t ventoy_cmd_load_img_memdisk(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    int rc = 1;
+    int headlen;
+    char name[32];
+    char value[32];
+    char *buf = NULL;
+    grub_file_t file;
+    
+    (void)ctxt;
+    (void)argc;
+    (void)args;
+
+    if (argc != 2)
+    {
+        return rc;
+    }
+
+    file = ventoy_grub_file_open(VENTOY_FILE_TYPE, "%s", args[0]);
+    if (file == NULL)
+    {
+        debug("failed to open file <%s> for udf check\n", args[0]);
+        return 1;
+    }
+
+    headlen = sizeof(ventoy_chain_head);
+
+#ifdef GRUB_MACHINE_EFI
+    buf = (char *)grub_efi_allocate_iso_buf(headlen + file->size);
+#else
+    buf = (char *)grub_malloc(headlen + file->size);
+#endif   
+
+    ventoy_fill_os_param(file, (ventoy_os_param *)buf);
+
+    grub_file_read(file, buf + headlen, file->size);
+
+    grub_snprintf(name, sizeof(name), "%s_addr", args[1]);
+    grub_snprintf(value, sizeof(value), "0x%llx", (unsigned long long)(unsigned long)buf);
+    grub_env_set(name, value);
+    
+    grub_snprintf(name, sizeof(name), "%s_size", args[1]);
+    grub_snprintf(value, sizeof(value), "%llu", (unsigned long long)file->size);
+    grub_env_set(name, value);
+
+    grub_file_close(file); 
+    rc = 0;
+    
+    return rc;
+}
+
 static grub_err_t ventoy_cmd_iso9660_nojoliet(grub_extcmd_context_t ctxt, int argc, char **args)
 {
     (void)ctxt;
@@ -834,6 +1033,14 @@ static int ventoy_colect_img_files(const char *filename, const struct grub_dirho
             type = img_type_efi;
         }
         #endif
+        else if (0 == grub_strcasecmp(filename + len - 4, ".img"))
+        {
+            if (len == 18 && grub_strncmp(filename, "ventoy_wimboot", 14) == 0)
+            {
+                return 0;
+            }
+            type = img_type_img;
+        }
         else
         {
             return 0;
@@ -1359,13 +1566,14 @@ static grub_err_t ventoy_cmd_img_name(grub_extcmd_context_t ctxt, int argc, char
 static grub_err_t ventoy_cmd_chosen_img_path(grub_extcmd_context_t ctxt, int argc, char **args)
 {
     int img_id = 0;
+    char value[32];
     char *pos = NULL;
     const char *id = NULL;
     img_info *cur = g_ventoy_img_list;
 
     (void)ctxt;
     
-    if (argc != 1)
+    if (argc < 1 || argc > 2)
     {
         return grub_error(GRUB_ERR_BAD_ARGUMENT, "Usage: %s {var}", cmd_raw_name);
     }
@@ -1398,6 +1606,12 @@ static grub_err_t ventoy_cmd_chosen_img_path(grub_extcmd_context_t ctxt, int arg
 
     grub_env_set(args[0], cur->path);
 
+    if (argc > 1)
+    {
+        grub_snprintf(value, sizeof(value), "%llu", (ulonglong)(cur->size));
+        grub_env_set(args[1], value);        
+    }
+
     VENTOY_CMD_RETURN(GRUB_ERR_NONE);
 }
 
@@ -2366,6 +2580,28 @@ end:
     return 0;
 }
 
+static grub_err_t ventoy_cmd_img_hook_root(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    (void)ctxt;
+    (void)argc;
+    (void)args;
+
+    ventoy_env_hook_root(1);
+    
+    return 0;
+}
+
+static grub_err_t ventoy_cmd_img_unhook_root(grub_extcmd_context_t ctxt, int argc, char **args)
+{
+    (void)ctxt;
+    (void)argc;
+    (void)args;
+
+    ventoy_env_hook_root(0);
+    
+    return 0;
+}
+
 grub_uint64_t ventoy_grub_get_file_size(const char *fmt, ...)
 {
     grub_uint64_t size = 0;
@@ -2489,6 +2725,7 @@ static cmd_para ventoy_cmds[] =
 {
     { "vt_incr",  ventoy_cmd_incr,  0, NULL, "{Var} {INT}",   "Increase integer variable",    NULL },
     { "vt_strstr",  ventoy_cmd_strstr,  0, NULL, "",   "",    NULL },
+    { "vt_str_begin",  ventoy_cmd_strbegin,  0, NULL, "",   "",    NULL },
     { "vt_debug", ventoy_cmd_debug, 0, NULL, "{on|off}",   "turn debug on/off",    NULL },
     { "vtdebug", ventoy_cmd_debug, 0, NULL, "{on|off}",   "turn debug on/off",    NULL },
     { "vtbreak", ventoy_cmd_break, 0, NULL, "{level}",   "set debug break",    NULL },
@@ -2502,7 +2739,10 @@ static cmd_para ventoy_cmds[] =
     { "vt_img_sector", ventoy_cmd_img_sector, 0, NULL, "{imageName}", "", NULL },
     { "vt_dump_img_sector", ventoy_cmd_dump_img_sector, 0, NULL, "", "", NULL },
     { "vt_load_wimboot", ventoy_cmd_load_wimboot, 0, NULL, "", "", NULL },
+
     { "vt_load_cpio", ventoy_cmd_load_cpio, 0, NULL, "", "", NULL },
+    { "vt_trailer_cpio", ventoy_cmd_trailer_cpio, 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 },
     { "vt_dynamic_menu", ventoy_cmd_dynamic_menu, 0, NULL, "", "", NULL },
@@ -2517,7 +2757,9 @@ static cmd_para ventoy_cmds[] =
     { "vt_iso9660_nojoliet", ventoy_cmd_iso9660_nojoliet, 0, NULL, "", "", NULL },
     { "vt_is_udf", ventoy_cmd_is_udf, 0, NULL, "", "", NULL },
     { "vt_file_size", ventoy_cmd_file_size, 0, NULL, "", "", NULL },
-    { "vt_load_iso_to_mem", ventoy_cmd_load_iso_to_mem, 0, NULL, "", "", NULL },
+    { "vt_load_file_to_mem", ventoy_cmd_load_file_to_mem, 0, NULL, "", "", NULL },
+    { "vt_load_img_memdisk", ventoy_cmd_load_img_memdisk, 0, NULL, "", "", NULL },
+    { "vt_concat_efi_iso", ventoy_cmd_concat_efi_iso, 0, NULL, "", "", NULL },
     
     { "vt_linux_parse_initrd_isolinux", ventoy_cmd_isolinux_initrd_collect, 0, NULL, "{cfgfile}", "", NULL },
     { "vt_linux_parse_initrd_grub", ventoy_cmd_grub_initrd_collect, 0, NULL, "{cfgfile}", "", NULL },
@@ -2557,6 +2799,9 @@ static cmd_para ventoy_cmds[] =
     { "vt_unix_replace_ko", ventoy_cmd_unix_replace_ko, 0, NULL, "", "", NULL },
     { "vt_unix_chain_data", ventoy_cmd_unix_chain_data, 0, NULL, "", "", NULL },
 
+    { "vt_img_hook_root", ventoy_cmd_img_hook_root, 0, NULL, "", "", NULL },
+    { "vt_img_unhook_root", ventoy_cmd_img_unhook_root, 0, NULL, "", "", NULL },
+
 };
 
 

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

@@ -467,6 +467,7 @@ grub_err_t ventoy_cmd_linux_locate_initrd(grub_extcmd_context_t ctxt, int argc,
 grub_err_t ventoy_cmd_initrd_count(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_valid_initrd_count(grub_extcmd_context_t ctxt, int argc, char **args);
 grub_err_t ventoy_cmd_load_cpio(grub_extcmd_context_t ctxt, int argc, char **args);
+grub_err_t ventoy_cmd_trailer_cpio(grub_extcmd_context_t ctxt, int argc, char **args);
 int ventoy_cpio_newc_fill_head(void *buf, int filesize, const void *filedata, const char *name);
 grub_file_t ventoy_grub_file_open(enum grub_file_type type, const char *fmt, ...);
 grub_uint64_t ventoy_grub_get_file_size(const char *fmt, ...);

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

@@ -151,6 +151,12 @@ static int ventoy_plugin_theme_check(VTOY_JSON *json, const char *isodisk)
         grub_printf("display_mode: %s\n", value);
     }
 
+    value = vtoy_json_get_string_ex(json->pstChild, "serial_param");
+    if (value)
+    {
+        grub_printf("serial_param %s\n", value);
+    }
+
     value = vtoy_json_get_string_ex(json->pstChild, "ventoy_left");
     if (value)
     {
@@ -236,6 +242,13 @@ static int ventoy_plugin_theme_entry(VTOY_JSON *json, const char *isodisk)
         debug("display_mode %s\n", value);
         grub_env_set("vtoy_display_mode", value);
     }
+    
+    value = vtoy_json_get_string_ex(json->pstChild, "serial_param");
+    if (value)
+    {
+        debug("serial_param %s\n", value);
+        grub_env_set("vtoy_serial_param", value);
+    }
 
     value = vtoy_json_get_string_ex(json->pstChild, "ventoy_left");
     if (value)

GRUB2/MOD_SRC/grub-2.04/include/grub/compiler.h

+/* compiler.h - macros for various compiler features */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2002,2003,2005,2006,2007,2008,2009,2010,2014  Free Software Foundation, Inc.
+ *
+ *  GRUB 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.
+ *
+ *  GRUB 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 GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_COMPILER_HEADER
+#define GRUB_COMPILER_HEADER	1
+
+/* GCC version checking borrowed from glibc. */
+#if defined(__GNUC__) && defined(__GNUC_MINOR__)
+#  define GNUC_PREREQ(maj,min) \
+	((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
+#else
+#  define GNUC_PREREQ(maj,min) 0
+#endif
+
+/* Does this compiler support compile-time error attributes? */
+#if GNUC_PREREQ(4,3)
+#  define ATTRIBUTE_ERROR(msg) \
+	__attribute__ ((__error__ (msg)))
+#else
+#  define ATTRIBUTE_ERROR(msg) __attribute__ ((noreturn))
+#endif
+
+#if GNUC_PREREQ(4,4)
+#  define GNU_PRINTF gnu_printf
+#else
+#  define GNU_PRINTF printf
+#endif
+
+#if GNUC_PREREQ(3,4)
+#  define WARN_UNUSED_RESULT __attribute__ ((warn_unused_result))
+#else
+#  define WARN_UNUSED_RESULT
+#endif
+
+#define UNUSED __attribute__((__unused__))
+
+#endif /* ! GRUB_COMPILER_HEADER */