How can I encrypt the entire disk on alternate installation?

Is it possible to install Ubuntu 11.04 with full disk encryption?

Previously versions have had an alternate install cd with a text interface where you could enable encryption for your drives. This one is fully graphical and is missing that encryption option.

Solution 1:

1. Go to releases.ubuntu.com/11.04 and download the alternate install CD for your architecture.
2. Burn the .iso to a blank CD.
3. Reboot with the CD in the drive, and allow the computer to boot from the CD.
4. On the Ubuntu alternate CD's menu, select "Install":
5. Follow the installer's instructions until you get to the step entitled "Partition Disks".
6. Choose "Guided - use entire disk and set up encrypted LVM" from the menu.
7. Finish the installation by following the instructions on the screen.