[Tfug] Clean "uninstalls"

[Zack Williams]

It's faster and easier to set up an automated deployment system than
to try to undo what had come before.   Almost every OS has this
(Redhat = kickstart, Windows = RIS, Mac OS X = System Image
Utility/Netboot), so learning those will get you there faster.

If your goal is to maintain data on the system, good luck... other
than putting user data on a different partition, or keeping excellent
backups, there's not a good way to do this.

- Zack