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.
I noticed that this is confusing in #230, user would search for errors in
the grub-btrfs.cfg file although the old grub-btrfs.cfg file is never
overwritten with grub-btrfs.new
Signed-off-by: Pascal Jäger <pascal.jaeger@leimstift.de>
* Make path of "grub-mkconfig_lib" configurable
* 41_snapshots-btrfs file:
- Remove "datarootdir" variable, is no longer used
- Replace "$datarootdir/grub/grub-mkconfig_lib" with "${GRUB_BTRFS_MKCONFIG_LIB:-/usr/share/grub/grub-mkconfig_lib}"
* Config file:
- Adds new GRUB_BTRFS_MKCONFIG_LIB variable
Might be '/usr/share/grub2/grub-mkconfig_lib' on some systems (Opensuse ...)
41_snapshots-btrfs file:
* Remove "grub_script_check" variable
Config file;
* Make name of "grub-script-check" configurable
* Might be 'grub2-script-check' on some systems (Fedora ...)
#### Script:
* Snapper:
- Now, the information is retrieved from the info.xml file.
* Timeshift:
* Now, the information is retrieved from the info.json file.
* Probe informations from device:
* Add the UUID of the root and boot subvolumes
* Show full path snapshot or only name:
* Remove, this feature never worked correctly
* Grub-menu:
* Now displays the following information in separate columns:
- Date of snapshot
- Path of snapshot
- Type/Tags of snapshot if available (snapper/timeshift)
- Description/Comments of snapshot if available (snapper/timeshift)
* Possibility to display only the desired information(s) (see config file)
* Adds a header for the column title
* GRUB_BTRFS_PREFIXENTRY is remove
* Boot partition detection:
* grub-btrfs is now able to detect if the boot folder/partition is a subvolume
* GRUB_BTRFS_OVERRIDE_BOOT_PARTITION_DETECTION should no longer be needed for this case
* Variables:
* Rename some variables
* Header:
* Update the header to reflect the changes.
#### Config:
* GRUB_BTRFS_PREFIXENTRY:
* Remove, no longer use
* GRUB_BTRFS_DISPLAY_PATH_SNAPSHOT:
* Remove, no longer use
* GRUB_BTRFS_TITLE_FORMAT:
* Shows/Hides "date" "snapshot" "type" "description" in the Grub menu, custom order available.
Default: ("date" "snapshot" "type" "description")
* GRUB_BTRFS_IGNORE_SNAPPER_TYPE:
* Rename to GRUB_BTRFS_IGNORE_SNAPSHOT_TYPE
- Supports both timeshift and snapper tags/type
* GRUB_BTRFS_IGNORE_SNAPPER_DESCRIPTION:
* Rename to GRUB_BTRFS_IGNORE_SNAPSHOT_DESCRIPTION
- Supports both snapper and timeshift description/comments
* GRUB_BTRFS_OVERRIDE_BOOT_PARTITION_DETECTION:
* grub-btrfs is now able to detect if the boot folder/partition is a subvolume.
Activating this parameter should no longer be necessary for this case.
* GRUB_BTRFS_SNAPPER_CONFIG:
* Remove, no longer use
#### Readme:
* Update "What does grub-btrfs v4.xx do" section
* Adds support for timeshift
* Update "GRUB_BTRFS_DISABLE_PROTECTION_SUBMENU":
* Remove default parameter (false), not needed
* adds automatic conversion of the value to lower case
* Adds security if a false positive is detected:
* if the command "grep -qs "$gbgmp" /proc/mounts;" returns a false positive.
"rm -d" will return an error if the directory is not empty.
cip91sk
Pascal J
Aidan Gibson
Dorian Stoll
expoodo
Bastien Roucariès
Yaroslav Halchenko
Kevin Chevreuil - Kaisen
Kevin Chevreuil - Kaisen
budswa
Antynea