Changing the location of BTRFS snapshots ?
Changing the location of BTRFS snapshots ?
Can I change the location of BTRFS snapshots. I installed CachyOS, and it automatically setup BTRFS subvols.
This is the layout 👇
| ID | gen | parent | top level | path |
|---|---|---|---|---|
| 258 | 1773 | 5 | 5 | @root |
| 259 | 1601 | 5 | 5 | @srv |
| 260 | 1789 | 5 | 5 | @cache |
| 261 | 1785 | 5 | 5 | @tmp |
| 262 | 1797 | 5 | 5 | @log |
| 263 | 26 | 377 | 377 | var/lib/portables |
| 264 | 26 | 377 | 377 | var/lib/machines |
| 265 | 1791 | 377 | 377 | .snapshots |
| 266 | 1427 | 378 | 378 | @home/.snapshots |
| 377 | 1797 | 5 | 5 | @ |
| 378 | 1797 | 5 | 5 | @home |
According to Arch wiki https://wiki.archlinux.org/title/Snapper#Creating_a_new_configuration
Create a subvolume at /path/to/subvolume/.snapshots where future snapshots for this configuration will be stored. A snapshot's path is /path/to/subvolume/.snapshots/#/snapshot, where # is the snapshot number.
From which I understand that if I created a snap of /home (@home), it will save in /home/.snapshots (@home/.snapshots).
So, CachyOS configured to save snaps to separate subvol.
But, what I want to do is, Instead of just saving it in separate subvol, i want snaps to be saved on different btrfs partition. Maybe @home/.snapshots but on different partition.
Is that possible ?
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Since snapshots are just a feature of COW where it shifts the newly written or changed blocks to a different reference point on the partition, I can't see that you can create them on a different partition. I could be wrong.
Yeah, that's what I'm thinking too.