I ssh to the RaQ and login as myself, su - admin, which works, then try to su - ( or just su ) and get the above message. Three questions: 1) Should I be able to su and become root? 2) Should I worry about this since I have changed the admin password?
Bruce certainly knows much more than I, as I know little - except that I often try to do thing that admin seems to not be able to do, so I am in the habit of doing as su root as soon as I logon. I don't think I could properly manage my box entirely as admin. But then again, as I admit, I am no expert in these matters. As a box-maintainer, I personally would do the OS reinstall; it is the only way you will know that other box-mucking has not been done that will come back to haunt you later on.
Happy New Year, Jale