Re: Does grub-mkrescue support UEFI hybrid USB/DVD images?

[Vladimir 'φ-coder/phcoder' Serbinenko]

> But returning (hd0,gpt2) would also be wrong here - ESP on CD image is
> empty, we need to somehow jump from ESP to full ISO image.
> 
Returning hd0,gpt2 is fine. By convention ()/file refers to parent disk
of whatever root partition is (as opposed to /file).
So just including part_gpt in core should be enough. But perhaps we
should put my patch as well to increase reliability. Consider scenario
of installing on disk with gpt and apt and using apt partitions. GRUB
will properly detect that it needs part_apple but part_gpt is not needed
to access partition.
Most of the install tools specify partition explicitly, so having
partition is non-critical. Having disk on the hand is critical.

@Kris: Please try (after removing the other patch)
diff --git a/util/grub-mkrescue.c b/util/grub-mkrescue.c
index e719839..e02340f 100644
--- a/util/grub-mkrescue.c
+++ b/util/grub-mkrescue.c
@@ -653,6 +653,9 @@ main (int argc, char *argv[])
       char *efiimgfat;
       grub_install_mkdir_p (efidir_efi_boot);

+      grub_install_push_module ("part_gpt");
+      grub_install_push_module ("part_msdos");
+
       imgname = grub_util_path_concat (2, efidir_efi_boot, "bootia64.efi");
       make_image_fwdisk_abs (GRUB_INSTALL_PLATFORM_IA64_EFI,
"ia64-efi", imgname);
       free (imgname);
@@ -713,6 +716,8 @@ main (int argc, char *argv[])
       free (efiimgfat);
       free (efidir_efi);
       free (efidir);
+      grub_install_pop_module ();
+      grub_install_pop_module ();
     }

   grub_install_push_module ("part_apple");

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