Description: A freelance web developer / software engineer based in the UK
This is how I set up automatic snapshots (like Time Machine on Mac) on my backup server (an old Raspberry Pi 1B running Raspberry Pi OS – a.k.a. Raspbian, with an old 1TB USB2 HD attached), using Snapper. Supposedly Snapper can work with modified ext4, but it seems far more tested with Btrfs, so I’m using that. This is more or less for my own reference in case I need to do it again, but should work well enough elsewhere.
You need the btrfs-progs and snapper packages:
sudo apt install btrfs-progs snapper First, the filesystem needs to be btrfs – either from the start or the tool btrfs-convert can do this in place from ext3/4. Note on the current version of Raspbian btrfs-convert is missing and the version from buster-backports segfaults – I used the Pi version of Ubuntu 20.04 to do that.
Alasdair Macintyre | A freelance web developer / software engineer based in the UK
Alasdair Macintyre | A freelance web developer / software engineer based in the UK
Alasdair Macintyre | A freelance web developer / software engineer based in the UK