Encrypt entire Linux drive with TrueCrypt

I've found plenty of info online about how to encrypt a drive with TrueCrypt, but everything I found was either outdated or not for Linux.

Here's what I'm after: I want to encrypt my entire drive (except, of course, the part[s] of it I CAN'T encrypt because they're needed to boot). I don't wish to reinstall my OS unless absolutely necessary.

Could someone please tell me how to encrypt my entire drive on Linux (Ubuntu 10.04) with TrueCrypt (7.0a)?

From serverfault Jason Swett

• http://grub.enbug.org/TrueCrypt

  and read this: http://superuser.com/questions/179526/how-to-chain-grub2-for-ubuntu-10-04-from-truecrypt-its-bootloader-multi-boot-a

  Zoredache : These really don't do anything for Linux. Both those are about just including the truecrypt boot-loader for a windows partition in GRUB.
  From Fred

• I ended up using the "alternative" Ubuntu installation disc and using the encryption option they have at setup time. I did end up having to reinstall my OS.

  From Jason Swett