Not sure where to post this but thought I shouldn't go wrong in general.

Heres my situation, my previous OS install was ubuntu 11.04, when I performed the install I used full disk encryption.
This week I decided to upgrade, so to create a full backup I booted using a usb recue image and performed dd if=/dev/sda of=/mnt/external/image.img

Now of course I want to access some of the data in the image.img file and I'm not sure how to do that.

If anyone can give me some pointers I'll be grateful.


(Fortunately I also backed up most of my data unencrypted, its just some config files I need.)