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Archlinux snapper setup

Warning: If you break your system by blindly copying and pasting commands, it is not my fault.

This is just my way of doing this. It works for me, but I can’t guarantee it will work for you.

This is a guide to set up Snapper on Arch Linux for Btrfs if you use the Archinstall suggested partition layout. I will walk you through the process of installing Snapper with that layout ONLY.

Dependencies

• snapper (Needed)
• btrfs-assistant (Recommended)
• snap-pac (Recommended)
• grub-btrfs (Optional)
• snap-pac-grub (Optional)
• refind-btrfs (Optional)

I usually just install most of them like this:

yay snapper btrfs-assistant snap-pac grub-btrfs snap-pac-grub

First step

Delete pre-mount snapshots:

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

This is needed because it will allow the user to use Snapper to make a new config.

Second step

Create a config with Snapper:

sudo snapper -c root create-config /

Remove existing snapshots:

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

Mount it:

sudo mount -a

Last step

List all subvolume:

sudo btrfs subvol list /

image from waylonwalker

Set @ as default:

sudo btrfs subvol set-default 256 /
sudo btrfs subvol get-default /

It should be all good now. If you run into any issues, you can try reading the following resource:

• Archwiki
• waylonwalker
• Lorenzo Bettini