I’m trying to enable snapshots on my Nextcloudpi instance, but whenever I try to run either nc-snapshot or nc-snapshot-auto I get the error / is not in a BTRFS filesystem.
From my nextcloudpi system info I have the following:
|
|
| datadir |
/media/ncprimary/ncdata |
| data in SD |
yes |
| data filesystem |
ext2/ext3 |
| data disk usage |
5.1G/118G |
| rootfs usage |
5.1G/118G |
| swapfile |
/var/swap |
| dbdir |
/media/ncprimary/ncdatabase |
Both datadir and dbdir are on a BTRFS USB drive, although I notice data in SD is marked yes above.
How can I enable BTRFS snapshots?
Where are you storing those snapshots? Seems you’re not mounted the root volume.
The datadir is in /media/ncprimary where /media/ncprimary is the mount point for a btrfs formatted drive.
I was eventually able to get this working by doing a fresh install and using the btrfs formatting tool in ncp-config, rather than formatting the drive using gparted.
I’m now trying to get those snapshots to sync onto a backup HDD. No luck so far, but I’ll see if it syncs tonight.
Ok. I don’t know how that tool sets it up. However normally you would have something like
/mnt/btrfsroot/
/mnt/btrfsroot/volumes
/mnt/btrfsroot/snapshots/volumes
Where volume is home, root, media, usr, and so on. These are called subvolumes and you can only make a snapshot of a subvolume and not the root. On some distributions they use @ or .snapshots. Btrfs itself has no default naming scheme