From: Matthew Garrett <mjg@redhat.com>
Date: 2012-07-10 11:58:52 EDT
Subject: [PATCH] Add support for crappy cd craparino

diff --git a/grub-core/disk/efi/efidisk.c b/grub-core/disk/efi/efidisk.c
index d9d788c..a432b44 100644
--- a/grub-core/disk/efi/efidisk.c
+++ b/grub-core/disk/efi/efidisk.c
@@ -750,6 +750,16 @@ grub_efidisk_get_device_name (grub_efi_handle_t *handle)
   if (! ldp)
     return 0;
 
+  if (GRUB_EFI_DEVICE_PATH_TYPE (ldp) == GRUB_EFI_MEDIA_DEVICE_PATH_TYPE &&
+      (GRUB_EFI_DEVICE_PATH_SUBTYPE (ldp) == GRUB_EFI_CDROM_DEVICE_PATH_SUBTYPE))
+    {
+      ldp->type = GRUB_EFI_END_DEVICE_PATH_TYPE;
+      ldp->subtype = GRUB_EFI_END_ENTIRE_DEVICE_PATH_SUBTYPE;
+      ldp->length[0] = 4;
+      ldp->length[1] = 0;
+      ldp = find_last_device_path(dp);
+    }
+
   if (GRUB_EFI_DEVICE_PATH_TYPE (ldp) == GRUB_EFI_MEDIA_DEVICE_PATH_TYPE
       && (GRUB_EFI_DEVICE_PATH_SUBTYPE (ldp)
 	  == GRUB_EFI_HARD_DRIVE_DEVICE_PATH_SUBTYPE))