This is a version 4.xx of grub-btrfs
Improves Grub by adding "btrfs snapshots" to the Grub menu.
You can start your system on a "snapshot" from the Grub menu.
Supports manual snapshots, snapper, timeshift ...
If you choose to do it, /var/log
or even /var
must be on a separate subvolume.
Otherwise, make sure your snapshots are writeable.
See this ticket for more info.
This project includes its own solution.
Refer to the documentation.
- Automatically List snapshots existing on root partition (btrfs).
- Automatically Detect if "/boot" is in separate partition.
- Automatically Detect kernel, initramfs and intel/amd microcode in "/boot" directory on snapshots.
- Automatically Create corresponding "menuentry" in
grub.cfg
- Automatically detect snapper and use snapper's snapshot description if available.
- Automatically generate
grub.cfg
if you use the provided systemd service.
pacman -S grub-btrfs
- Run
make install
or look into Makefile for instructions on where to put each file.
NOTE: Generate your Grub menu after installation for the changes to take effect.
On Arch Linux use grub-mkconfig -o /boot/grub/grub.cfg
.
You have the possibility to modify many parameters in /etc/default/grub-btrfs/config
.
See config file for more information.
If you would like Grub to automatically update when a snapshot is made or deleted:
- Use
systemctl start/enable grub-btrfs.path
. grub-btrfs.path
automatically (re)generatesgrub.cfg
when a modification appears in/.snapshots
folder (by default).- If your snapshots aren't mounted in
/.snapshots
, you must modify the watch folder usingsystemctl edit grub-btrfs.path
.-
For example: Timeshift mount its snapshots in
/run/timeshift/backup/timeshift-btrfs/snapshots
folder.Use
systemctl edit grub-btrfs.path
. Then wrote:[Path] PathModified=/run/timeshift/backup/timeshift-btrfs/snapshots
and finally save.
-
You can view your change to
systemctl cat grub-btrfs.path
. -
To revert change use
systemctl revert grub-btrfs.path
.
-