Made -iso_mbr_part_type 0x00 default of grub-mkrescue-sed.sh mode "mbr_only"

frontend/grub-mkrescue-sed.sh

@@ -145,6 +145,13 @@ then
   echo >&2
 fi
 
+# Check for option -iso_mbr_part_type which is new in 1.4.8
+iso_mbr_part_type=
+if "$xorriso" -as mkisofs -help 2>&1 | grep iso_mbr_part_type >/dev/null
+then
+  iso_mbr_part_type="-iso_mbr_part_type 0x00"
+fi
+
 # Look for the name of the /tmp directory with the GRUB2 files.
 # It is the next argument after -r. But as default accept any /tmp/grub.*
 next_is_dir=0
@@ -203,7 +210,7 @@ then
   efi_tmp_name=grub-mkrescue-sed-efi-img.$$
   mv "$dir"/efi.img /tmp/$efi_tmp_name
   x=$(echo " $*" | sed \
-    -e "s/-efi-boot-part --efi-boot-image/-no-pad -append_partition 2 0xef \/tmp\/$efi_tmp_name/" \
+    -e "s/-efi-boot-part --efi-boot-image/$iso_mbr_part_type -no-pad -append_partition 2 0xef \/tmp\/$efi_tmp_name/" \
     -e "s/--efi-boot efi\.img/-eltorito-alt-boot -e --interval:appended_partition_2:all:: -no-emul-boot/" \
     -e "s/-hfsplus .*CoreServices\/boot.efi//" \
     -e "s/--protective-msdos-label/$protective/" \
@@ -213,7 +220,7 @@ elif test x"$mode" = xmbr_only_copy
 then
   # Exchange arguments for no-HFS MBR-only layout
   x=$(echo " $*" | sed \
-    -e "s/-efi-boot-part --efi-boot-image/-no-pad -append_partition 2 0xef \/tmp\/$(basename "$dir")\/efi.img/" \
+    -e "s/-efi-boot-part --efi-boot-image/$iso_mbr_part_type -no-pad -append_partition 2 0xef \/tmp\/$(basename "$dir")\/efi.img/" \
     -e "s/-hfsplus .*CoreServices\/boot.efi//" \
     -e "s/--protective-msdos-label/$protective/" \
      )
@@ -224,7 +231,7 @@ then
   efi_tmp_name=grub-mkrescue-sed-efi-img.$$
   mv "$dir"/efi.img /tmp/$efi_tmp_name
   x=$(echo " $*" | sed \
-    -e "s/-efi-boot-part --efi-boot-image/-no-pad -append_partition 2 0xef \/tmp\/$efi_tmp_name/" \
+    -e "s/-efi-boot-part --efi-boot-image/$iso_mbr_part_type -no-pad -append_partition 2 0xef \/tmp\/$efi_tmp_name/" \
     -e "s/--efi-boot efi\.img/-eltorito-alt-boot -e --interval:appended_partition_2:all:: -no-emul-boot/" \
     -e "s/--protective-msdos-label/$protective/" \
      )
@@ -233,7 +240,7 @@ elif test x"$mode" = xmbr_hfs_copy
 then
   # Exchange arguments for MBR and HFS+ layout
   x=$(echo " $*" | sed \
-    -e "s/-efi-boot-part --efi-boot-image/-no-pad -append_partition 2 0xef \/tmp\/$(basename "$dir")\/efi.img/" \
+    -e "s/-efi-boot-part --efi-boot-image/$iso_mbr_part_type -no-pad -append_partition 2 0xef \/tmp\/$(basename "$dir")\/efi.img/" \
     -e "s/--protective-msdos-label/$protective/" \
      )