Grub-mkconfig not detecting grub-btrfs snapshots

General system Applications
1

Hello,

I recently installed Endeavour and I am loving it. This is also my first post. I found this article on the wiki, https://discovery.endeavouros.com/encrypted-installation/btrfs-with-timeshift-snapshots-on-the-grub-menu/2022/02/, and I have worked to get this configured and I have failed so far.

So here is where I currently stand. I edited /etc/systemd/system/grub-btrfs.path and changed the [PathModified] from /run/timeshift/backup/timeshift-btrfs/snapshots to PathModified=/run/timeshift/backup/timeshift/snapshots

[Unit]
Description=Monitors for new timeshift snapshots
DefaultDependencies=no
Requires=run-timeshift-backup.mount
After=run-timeshift-backup.mount
BindsTo=run-timeshift-backup.mount

[Path]
PathModified=/run/timeshift/backup/timeshift/snapshots

[Install]
WantedBy=run-timeshift-backup.mount

I changed this PathModified as the timeshift-btrfs directory did not exist

[usr@arch-t470s backup]$ pwd
/run/timeshift/backup
[user@arch-t470s backup]$ ls
drwxr-xr-x - root 20 May 16:26 ď„• @
drwxr-xr-x - root 20 May 10:50 ď„• @cache
drwxr-xr-x - root 20 May 10:50 ď„• @home
drwxr-xr-x - root 23 May 16:56 ď„• @log
drwxr-xr-x - root 22 May 22:36 ď„• timeshift

I then reenable the service and it gives a warning that the grub-btrfs.path is added as a dependency to a non-existing unit.

[user@arch-t470s backup]$ sudo systemctl reenable grub-btrfs.path
Removed "/etc/systemd/system/run-timeshift-backup.mount.wants/grub-btrfs.path".
Created symlink /etc/systemd/system/run-timeshift-backup.mount.wants/grub-btrfs.path → /etc/systemd/system/grub-btrfs.path.
Unit /etc/systemd/system/grub-btrfs.path is added as a dependency to a non-existent unit run-timeshift-backup.mount.

I try running grub-mkconfig anyways and it still does not find any of the snapshots.

[user@arch-t470s backup]$ sudo grub-mkconfig -o /boot/grub/grub.cfg
Generating grub configuration file ...
Found theme: /boot/grub/themes/EndeavourOS/theme.txt
Found linux image: /boot/vmlinuz-linux
Found initrd image: /boot/intel-ucode.img /boot/initramfs-linux.img
Found fallback initrd image(s) in /boot:  intel-ucode.img initramfs-linux-fallback.img
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
Found Windows Boot Manager on /dev/nvme0n1p1@/efi/Microsoft/Boot/bootmgfw.efi
Adding boot menu entry for UEFI Firmware Settings ...
Detecting snapshots ...
No snapshots found.
If you think an error has occurred , please file a bug report at " https://github.com/Antynea/grub-btrfs "
Unmount /tmp/grub-btrfs.1EnykrUvNx .. Success
done

Any ideas as to what I need to change in my configuration to get grub to read my snapshots?

2

Pardon me if I am totally out of my depth but won’t

/timeshift/backup/timeshift-btrfs/snapshots

be created “on-the-fly” whenever Timeshift is run?

3

It doesn’t appear to be. I installed timeshift-autosnap and it looks like when timeshift-autosnap is run each time I do a system update (sudo pacman -Syu) or install an app through bauh, it’s putting the snapshots in /run/timeshift/backup/timeshift/snapshots instead of /run/timeshift/backup/timeshift-btrfs/snapshots.

4

I just figured it out. Timeshift was set to rsync and not to btrfs backups. I modified that and running grub-mkconfig now loads the snapshots.

1 Like
5

It’s been a while I used Timshift + grub-btrfs.
Even back then I didn’t use timeshift-autosnap.

I have taken a look at

https://gitlab.com/gobonja/timeshift-autosnap/-/blob/dev/timeshift-autosnap

and I am not seeing that it should modify the default path of Timeshift.

Please wait for some more input and perhaps have a look here:

https://gitlab.com/gobonja/timeshift-autosnap

in the meantime.

Good luck and welcome to EnOS’ community!
:enos_flag:

Edit: I totally missed your latest post :sweat_smile:
Glad you got it working!

6

Months later… and I have now run into this issue as well. However, my timeshift is set to BTRFS and it still gives me the same error.

image
image806Ă—670 112 KB

image

7
8

Thanks. Will check it out right now :face_exhaling: :face_with_monocle:

9

Ok. So like pretty much everything in Arch, using

sudo downgrade *package name*

will fix your most issues temporarily.

Thanks for the link to the fix @mcury

1 Like