Authentication/Configuration

Ok Guys, go easy, silly question time. When building and installing TDE from scratch on a clean, 'X'-less system, how do I get authentication working? I assume that TDE just passes on the task to the underlying OS. However, having done a clean build I don't know how to get the necessary configuration and auth bits in place, like Pam modules, init scripts etc. When you install from packages it's all taken care of. I can (and will) hack about to create the above but just wondered if there was something ready rolled. Cheers, Mike. -- Every question is easy if you know the answer!