It seems like I'm missing something in that you are able to mount the encrypted partition without a password.<p>What's stopping me (or the police) from stealing your hard drive, booting into my own Ubuntu installation, and mounting your encrypted partition?<p>Is the lesson learned here not use use Ubuntu disk/partition encryption?
So you mounted a hard drive and copied some folders from the command line. Big deal.<p>Besides, if you could mount the drive without using any password, it doesn't seem like it was encrypted at all.