commit: 755179ce97fa6eda50c73cb59914ce428cbfaa6c
Author: Nowa Ammerlaan <nowa <AT> gentoo <DOT> org>
AuthorDate: Mon May 5 15:40:12 2025 +0000
Commit: Andreas K. Hüttel <dilfridge <AT> gentoo <DOT> org>
CommitDate: Fri Oct 3 14:22:16 2025 +0000
URL: https://gitweb.gentoo.org/proj/catalyst.git/commit/?id=755179ce
create-iso.sh: add support for creating an extra partition
- second argument (if specified) will control the size of this
partition.
- We give the partition the GUID of a generic Linux data partition,
when translated to MBR this also maps to a Linux partition
automatically.
- The arguments we are adding are options for xorriso, not for
grub-mkrescue. Grub-mkrescue passes on whatever we give it extra.
- XFS is hardcoded for now, we can extend this in the future,
possibly by adding support for a third argument.
Signed-off-by: Andreas K. Hüttel <dilfridge <AT> gentoo.org>
Signed-off-by: Nowa Ammerlaan <nowa <AT> gentoo.org>
targets/support/create-iso.sh | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/targets/support/create-iso.sh b/targets/support/create-iso.sh
index aa597a59..c0e682f4 100755
--- a/targets/support/create-iso.sh
+++ b/targets/support/create-iso.sh
@@ -199,6 +199,24 @@ case ${clst_hostarch} in
sparc*) extra_opts+=("--sparc-boot") ;;
esac
+ # Second argument will specify size in kilobytes
+ if [[ ${2} =~ ^[0-9]+$ ]]; then
+ extrapart=${1%.*}-extra.img
+ rm -f "${extrapart}"
+ dd if=/dev/zero of="${extrapart}" bs=1k count="${2}"
+ # TODO: allow setting different fs type
+ mkfs.xfs "${extrapart}"
+ # 1=ESP, 2=HFS+, so 3 is first available partition
+ extra_opts+=(
+ "-append_partition"
+ "3"
+ "0FC63DAF-8483-4772-8E79-3D69D8477DE4"
+ "${extrapart}"
+ )
+ elif [[ -n ${2} ]]; then
+ die "Invalid second argument, must be an integer"
+ fi
+
echo ">> Running grub-mkrescue to create iso image...."
grub-mkrescue --mbr-force-bootable -volid
"${clst_iso_volume_id}" "${extra_opts[@]}" -o "${1}" "${clst_target_path}"
;;
