@Matthieu Can you manually boot it via the Grub command line? UUIDs shouldn't change if you use GPT, because they're listed in the partition table itself. You should see a listing of them in `/dev/disk/by-uuid`
Why is this step necessary? mstdn.io might not be the server where you are registered, so we need to redirect you to your home server first.
Don't have an account? You can sign up here