Matt/grub-btrfs
1
0
Fork 0
mirror of https://github.com/Antynea/grub-btrfs.git synced 2026-03-04 04:35:00 +08:00
Code Issues Packages Projects Releases Wiki Activity

Add support for GRUB patches from SUSE

Browse Source 
Some GRUBs out there (Fedora, openSUSE) have an option that makes all
paths relative to the default subvolume of the filesystem. This can be
used to include /boot in your snapshots and roll them back without
having to regenerate grub.cfg.

However, enabling that option will break grub-btrfs, because loading the
kernel from a different snapshot requires the paths to be absolute.

To make this work, GRUB has to be told explicitly to access the root
subvolume when booting to a snapshot.
This commit is contained in:
Dorian Stoll
2024-03-10 10:48:42 +01:00
parent 346a9868b8
commit ece8d87151
1 changed files with 10 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
41_snapshots-btrfs
View File

@@ -224,7 +224,12 @@ make_menu_entries()
search --no-floppy --fs-uuid --set=root ${boot_hs} ${boot_uuid}
else
search --no-floppy --fs-uuid --set=root ${boot_uuid}
fi"
if [ "${SUSE_BTRFS_SNAPSHOT_BOOTING:-"false"}" = "true" ]; then
entry "\
set btrfs_subvolid=5"
fi
entry "\
echo 'Loading Snapshot: "${snap_date_trim}" "${snap_dir_name_trim}"'
echo 'Loading Kernel: "${k}" ...'
linux \"${boot_dir_root_grub}/"${k}"\" root="${LINUX_ROOT_DEVICE}" ${kernel_parameters} ${rootflags}subvol=\""${snap_dir_name_trim}"\""
@@ -259,7 +264,12 @@ make_menu_entries()
search --no-floppy --fs-uuid --set=root ${boot_hs} ${boot_uuid}
else
search --no-floppy --fs-uuid --set=root ${boot_uuid}
fi"
if [ "${SUSE_BTRFS_SNAPSHOT_BOOTING:-"false"}" = "true" ]; then
entry "\
set btrfs_subvolid=5"
fi
entry "\
echo 'Loading Snapshot: "${snap_date_trim}" "${snap_dir_name_trim}"'
echo 'Loading Kernel: "${k}" ...'
linux \"${boot_dir_root_grub}/"${k}"\" root="${LINUX_ROOT_DEVICE}" ${kernel_parameters} ${rootflags}subvol=\""${snap_dir_name_trim}"\""