When I look at Synology videos from Youtube then there I can see that it is possible to rollback BTRFS snapshots for data without rolling back OS.
My root file system and data are both BTRFS and subvolumens configured in /etc/fstab:
UUID=02ef6261-0ab3-489c-a3ea-d12245d0ef76 / btrfs defaults,subvol=@rootfs 0 0
UUID=9c76582a-95c4-437c-abf2-81e3542665ae /media/data btrfs defaults,subvol=data 0 0
Then with snapper I still cannot perform rollback:
root@debian-btrfs:~# snapper -c data rollback 1
Command 'rollback' cannot be used on a non-root subvolume /media/data.
Similar thing happens with Timeshift which says:
Select BTRFS system disk with root subvolume (@)
But looking at Synology it looks like it is somehow possible to rollback just data without having to rollback OS, without having to reboot NAS, without having to choose snapshot from grub menu during the boot. From how quick it is it seems to make use of BTRFS rollback features instead of just copying files over one by one.
Does Debian also have similar software that can perform quick rollback for just data using BTRFS features or are the complex solutions where you have to select correct snapshot from grub menu at boot and then perform the final rollback the only option that are currently available?
