Originally Posted by sjau
You can fully encrypt a system afterwards... but it's tedious and a lot can go wrong. It's a lot simpler to start just over again with the installation of a fully encrypted system.
I really only want to encrypt my Ubuntu partition. I have a laptop with a multi-boot setup with Windows 7, Fedora 13 and Ubuntu 10.04 all residing in their own partition. Because of this setup I really can't use whole disk encryption. Sorry if I mis-stated what I want to do.
I do use Truecrypt on my Windows 7 partition and it works great but encryption of a Linux system partition is not supported.