Hmmm, I am not that familar with RH9, but I would probably recommend backing up your home directories, taking note of what you have compiled from source and installed from things other than rpm's, and then doing a fresh install. Its my experience upgrading over an existing installation doesn't work that well (though I am investigating such a thing with urpmi for Mandrake). But I am not familar with yum or whatever RH uses to handle packages now. I'd still advise backing things up though of course
