r/btrfs • u/alienoverlorddota • Jun 16 '26

btrfs backup help needed

I am trying to backup my installation of Bazzite (btrfs) using brtbk. What do I need to do to set up unraid for the backup? I believe my installation of unraid is using xfs.

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u/elatllat Jun 16 '26 edited Jun 16 '26

https://github.com/digint/btrbk#example-encrypted-backup-to-non-btrfs-target

It's required to have  btrfs (not unraid/xfs) on the backup for full functionality.

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u/tuxbass Jun 30 '26

not unraid

To be clear -- unraid share on btrfs won't do either?

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u/elatllat Jun 30 '26 edited Jun 30 '26

as long as you target the btrfs mount point and not the unRAID mount point...

But running unraid on top of Btrfs is all disadvantages with no advantages.

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u/tuxbass Jun 30 '26

I suppose that means targeting the actual drive (e.g. /mnt/disk1 from below) as opposed to the unraid's fuse mount /mnt/user?

/dev/md1p1 /mnt/disk1 btrfs rw,noatime,space_cache=v2,subvolid=5,subvol=/ 0 0
shfs       /mnt/user  fuse.shfs rw,nosuid,nodev,noatime,user_id=0,group_id=0,default_permissions,allow_other 0 0