88a0320d62
Errata commit:
This commit has no substantive code change.
This commit is provided only to document a correction to a previous commit message.
This pertains to commit object 87b816345b
Due to improper handling, the aforementioned commit message is incorrect.
Correct message is :
[Makefile] remove `mkinitcpio` dependency
The mkinitcpio binary is not available even on Arch, when building in a
clean environment (e.g. building distro packages in a clean chroot).
This causes the mkinitcpio hook to not be present in the final package,
which is resolved by this commit, by adding a `make` switch. This switch
allows users to explicitely turn on inclusion of the hook.
[uninstall:] don't remove non-existent folders
This prevents some warnings being output when on a non-Archlinux system,
without a previously installed initcpio hook, a `make uninstall` is per-
formed.
These three folders should _only_ be deleted if they had been mistakenly
created during `make install`.
Co-authored-by: Kriss <kr1ss.x@yandex.com>
grub-btrfs
This is a version 4.xx of grub-btrfs
BTC donation address: 1Lbvz244WA8xbpHek9W2Y12cakM6rDe5Rt
Description
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 ...
Warning: booting on read-only snapshots can be tricky
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.
What does grub-btrfs v4.xx do :
- 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.cfgif you use the provided systemd service.
Installation :
Arch Linux
pacman -S grub-btrfs
Manual
- Run
make installor 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.
Customization:
You have the possibility to modify many parameters in /etc/default/grub-btrfs/config.
See config file for more information.
Automatically update grub
If you would like Grub to automatically update when a snapshot is made or deleted:
- Use
systemctl start/enable grub-btrfs.path. grub-btrfs.pathautomatically (re)generatesgrub.cfgwhen a modification appears in/.snapshotsfolder (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/snapshotsfolder.Use
systemctl edit grub-btrfs.path. Then wrote:[Path] PathModified=/run/timeshift/backup/timeshift-btrfs/snapshotsand finally save.
-
You can view your change to
systemctl cat grub-btrfs.path. -
To revert change use
systemctl revert grub-btrfs.path.
-
Warning:
by default, grub-mkconfig command is used.
Might be grub2-mkconfig on some systems (Fedora ...).
Edit GRUB_BTRFS_MKCONFIG variable in /etc/default/grub-btrfs/config file to reflect this.