Hi, On 09/01/13 22:49, Peter Simons wrote: > after updating my installation to the current version of the systemd branch > (b5e639dbb10c396e174aa79f5941c727675148d5), I can no longer log in. Maybe your Nixpkgs tree is not up to date? NixOS-systemd requires systemd 197. -- Eelco Dolstra | LogicBlox, Inc. | http://nixos.org/~eelco/