Mounting an encrypted LUKS LVM volume from a live CD

Get Luks and dm-crypt running on the live disk:

sudo apt-get install lvm2 cryptsetup

sudo modprobe dm-crypt

sudo cryptsetup luksOpen /dev/sda4 crypt1

If you LVM setup then you need to continue with:

sudo vgscan --mknodes

sudo vgchange -ay

Take note of the volume group name. 'vg0' in my case.

Mount the disk:

sudo mkdir /mnt/disk

sudo mount /dev/vg0/root /mnt/disk

Adapted rom: http://www.ubuntugeek.com/rescue-an-encrypted-luks-lvm-volume.html