How to backup/restore full-disk encryption?

Question

How to backup/restore full-disk encryption ubuntu 11.10? I would like to put the RAW encrypted file system and restore on another computer.

Encryption Details: crypt setup via Ubuntu alterate CD Installer only thing unencrypted is /boot

File systems setup: boot- j swap-swap everything else-ext 4

Any suggestions? I have considered backing up the file system stripped of encryption, but I would prefer to keep the os encrypted while transferring.

Thanks for any help!

Answer 1

I have never done it myself but I imagine if you are wanted to make an exact copy of the encrypted disk then it would be easiest to back up the entire partition using ddrescue, clonezilla or something similar. Then restoring to a new HD.