systemd 256 added a new feature which wants to create users on boot if none exist yet: https://github.com/systemd/systemd/commit/3ccadbce3358ba1db7ce5fa3f8dd17c627ffd93b We don't want that, cloud-init handles this situation. So let's disable it. Signed-off-by: Adam Williamson <awilliam@redhat.com>