Setting up snapper on Arch

Waylon Walker

Note #

These are mostly my notes to remind myself, I'd Highly reccomend watching this-video or reading this arch wiki page

/.snapshots already exists error #

When I started running sudo snapper -c root create-config / I ran into the following error.

snapshots-already-exists






        
Creating config failed (creating btrfs subvolume .snapshots failed since it already exists).

remove existing snapshots #






        
sudo umount /.snapshots
sudo rm -r /.snapshots

configure snapper #






        
sudo snapper -c root create-config /
sudo snapper -c home create-config /home

btrfs subvolumes #






        
sudo btrfs subvolume list /

btrfs-subvolume-list






        
sudo btrfs subvolume delete /.snapshots
sudo mkdir /.snapshots

#






        
# you might not see snapshots mounted yet
lsblk

# if you check fstab you will see an entry for it
cat /etc/fstab

# mount it
sudo mount -a

# now you should see /.snapshots mounted
lsblk

You should now see .snapshots in mountpoints.

lsblk-snapshots

Setting the default to @ #

so that you can boot into snapper snapshots






        
sudo btrfs subvol get-default /
sudo btrfs subvol list /

btrfs-subvol-get-default






        
sudo btrfs subvol set-default 256 /
sudo btrfs subvol get-default /
## ID 256 gen 105268 top level 5 path @

btrfs-subvol-set-default

snapper ls #






        
sudo snapper ls

snapper-ls-init

leaving off for now

config #






        
sudo nvim /etc/snapper/configs/root






        
ALLOW_GROUPS="wheel"

# limits for timeline cleanup
TIMELINE_MIN_AGE="1800"
TIMELINE_LIMIT_HOURLY="5"
TIMELINE_LIMIT_DAILY="7"
TIMELINE_LIMIT_WEEKLY="0"
TIMELINE_LIMIT_MONTHLY="0"
TIMELINE_LIMIT_YEARLY="0"






        
sudo chown -R :wheel /.snapshots/

Setting up snapper on Arch

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