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Antynea / grub-btrfs

Include btrfs snapshots at boot options. (Grub menu)

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Is this supposed to work on non UEFI installations?

masavini opened this issue · comments

commented

Hi,
I hope this question is not too silly, but I really couldn't find this info anywhere...

I tried to install grub-btrfs on a bios grub installation, but with no success...
This is systemctl status grub-btrfs.service output:

● grub-btrfs.service - Regenerate grub-btrfs.cfg
     Loaded: loaded (/lib/systemd/system/grub-btrfs.service; bad; vendor preset: enabled)
     Active: inactive (dead) since Thu 2021-11-11 00:09:27 CET; 8min ago
TriggeredBy: ● grub-btrfs.path
    Process: 1681 ExecStart=/usr/bin/bash -c if [ -s "${GRUB_BTRFS_GRUB_DIRNAME:-/boot/grub}/grub-btrfs.cfg" ]; then /etc/grub.d/41_snapshots-btrfs; else ${GRUB_BTRFS_MKCONFIG:-grub-mkconfig} -o ${GRUB_BTRFS_GRUB_DIRNAM>
   Main PID: 1681 (code=exited, status=0/SUCCESS)

Nov 11 00:09:26 stamina 05efi[2470]: debug: Not on UEFI platform
Nov 11 00:09:26 stamina os-prober[2471]: debug: running /usr/lib/os-probes/mounted/10freedos on mounted /dev/sda3
Nov 11 00:09:26 stamina 10freedos[2473]: debug: /dev/sda3 is not a FAT partition: exiting
Nov 11 00:09:27 stamina os-prober[2477]: debug: running /usr/lib/os-probes/mounted/20macosx on mounted /dev/sda3
Nov 11 00:09:27 stamina os-prober[2486]: debug: running /usr/lib/os-probes/mounted/40lsb on mounted /dev/sda3
Nov 11 00:09:27 stamina os-prober[2490]: debug: running /usr/lib/os-probes/mounted/80minix on mounted /dev/sda3
Nov 11 00:09:27 stamina os-prober[2499]: debug: running /usr/lib/os-probes/mounted/90solaris on mounted /dev/sda3
Nov 11 00:09:27 stamina bash[2511]: done
Nov 11 00:09:27 stamina systemd[1]: grub-btrfs.service: Succeeded.
Nov 11 00:09:27 stamina systemd[1]: Finished Regenerate grub-btrfs.cfg.
commented

hello,

Is this supposed to work on non UEFI installations?
I hope this question is not too silly, but I really couldn't find this info anywhere...

Indeed, I don't mention the UEFI / Bios legacy compatibility anywhere, because grub-btrfs doesn't care about that.
grub-btrfs simply adds an additional menu to your existing Grub installation, so if Grub works on your installation, grub-btrfs will work.

However, I have implemented a few limitations:

  • If you have explicitly disabled its execution through the config file, it will not run.
# Disable grub-btrfs.
# Default: "false"
#GRUB_BTRFS_DISABLE="true"
  • If the package containing the btrfs command isn't installed, it will not run.
    btrfs-progs on Arch Linux
  • If the grub-mkconfig_lib file is not found, it will not run.
    The file detection does not work correctly on all distros. #180
  • If the file system on your root partition isn't btrfs, it will not run.

The ouput of systemctl status grub-btrfs.service indicates that grub-btrfs did not run.
First check the reasons given above.

For more complete debugging:

  • What is your OS ?
  • Can you post the output of bash -x /etc/grub.d/41_snapshots-btrfs
    This, will show the line that stops the script.
commented

hi,
thanks for your reply.
i reinstalled everything, and now it perfectly works. my bad!

i tried to reinstall everything last night, as well, but i was probably too sleepy... and since i could not find any info about bios grub, i thought it could have been unsupported...

thanks!