diff options
Diffstat (limited to 'gnu/packages/patches/xorriso-no-mbr-in-inner-efi.patch')
| -rw-r--r-- | gnu/packages/patches/xorriso-no-mbr-in-inner-efi.patch | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/gnu/packages/patches/xorriso-no-mbr-in-inner-efi.patch b/gnu/packages/patches/xorriso-no-mbr-in-inner-efi.patch new file mode 100644 index 0000000000..a43889d2c6 --- /dev/null +++ b/gnu/packages/patches/xorriso-no-mbr-in-inner-efi.patch @@ -0,0 +1,47 @@ +https://dev.lovelyhq.com/libburnia/libisoburn/commit/1eb51f44dadb8b6c5f87533ca357186cdc1ac625 +diff --git a/frontend/grub-mkrescue-sed.sh b/frontend/grub-mkrescue-sed.sh +index b3948c99..dcd9d696 100755 +--- a/frontend/grub-mkrescue-sed.sh ++++ b/frontend/grub-mkrescue-sed.sh +@@ -120,6 +120,7 @@ fi + # "yes" overwrites the MBR partition table area in the EFI boot image by zeros. + # Some EFI implementations get stuck when seeing in the EFI partition a + # partition table entry which begins at LBA 0. ++# "extra" not only zeros the partition table but also the MBR signature. + efi_zero_inner_pt=no + if test -n "$MKRESCUE_SED_IN_EFI_NO_PT" + then +@@ -192,24 +193,31 @@ then + find "$dir" + fi + +-if test "$efi_zero_inner_pt" = yes ++if test "$efi_zero_inner_pt" = yes -o "$efi_zero_inner_pt" = extra + then + did_dd=0 + if test -e "$dir"/efi.img + then ++ # Look for 0x55 0xAA in bytes 510 and 511 + magic=$(dd bs=1 skip=510 count=2 if="$dir"/efi.img 2>/dev/null | \ + od -c | head -1 | awk '{print $2 " " $3}') + if test "$magic" = "U 252" + then ++ echo "Performing actions for MKRESCUE_SED_IN_EFI_NO_PT=$efi_zero_inner_pt" >&2 + dd if=/dev/zero bs=1 seek=446 count=64 conv=notrunc of="$dir"/efi.img + did_dd=1 ++ if test "$efi_zero_inner_pt" = extra ++ then ++ dd if=/dev/zero bs=1 seek=510 count=2 conv=notrunc of="$dir"/efi.img ++ fi ++ echo >&2 + fi + fi + if test "$did_dd" = 0 + then + echo >&2 + echo "$0 : NOTE : No EFI image found or no MBR signature in it." >&2 +- echo "$0 : NOTE : Will not obey MKRESCUE_SED_IN_EFI_NO_PT=yes" >&2 ++ echo "$0 : NOTE : Will not obey MKRESCUE_SED_IN_EFI_NO_PT=$efi_zero_inner_pt" >&2 + echo >&2 + fi + fi |