Configuration
Btrfs Snapshots
Using filesystem snapshots to roll back after a bad update.
If you installed Genesi on btrfs (see Filesystem), you can take snapshots of the system and roll back if an update goes wrong — a real safety net on a rolling release.
Snapshots only apply to btrfs. On ext4 there's no equivalent; back up important data before large upgrades instead.
The idea
A snapshot is a near-instant, space-efficient copy of a subvolume at a point in
time. Take one before a big pacman -Syu, and if something breaks you can boot
into (or restore) the previous state.
Tooling
Genesi is Arch/CachyOS-based, so the standard Arch tooling applies:
- snapper — manage snapshots and automatic timelines.
- grub-btrfs — list snapshots in the GRUB menu so you can boot one directly.
The Arch Wiki: Snapper and CachyOS's Btrfs documentation cover setup in depth. If a tool isn't already present:
sudo pacman -S snapper snap-pac grub-btrfs