When Ubuntu first started with encrypted hard drive support, I made a LVM system inside the encrypted system. I do not like to upgrade Ubuntu from one version to another, and I do not want to copy all my data for each installation. My LVM system therefore have root, swap and home, so that home [...]

This guide will very briefly describe how to setup an encrypted LUKS partition and mount it on log in.
Preparation
Start by installing the software needed:
sudo apt-get install libpam-mount cryptsetup
Add these line to /etc/initramfs-tools/modules
dm_mod
dm_crypt
sha256
aes_i586
and update the initrd-image with
sudo update-initramfs -u all
Making the encrypted partition
Remember to take BACKUP, because all data at /dev/sda6 will be lost!!!
Now we have [...]