Mounting encrypted .img file on x86_64 Linux

[jhae2.718]

While playing around with the fglrx driver for AMD graphic cards I managed to completely destroy my system last night. (Tip: never play with the kernel after 11 pm.)

After reinstalling from a live CD, I have the OS up and running. Unfortunately, my /home partition was encrypted so the reinstall did not recover that. (My backup was corrupted; stupid of me, I know. Anyone have a good Linux backup solution?)

However, I have an .img file of the encrypted contents of my /home directory, and I have the corresponding .key. I can't get it to mount, though.

I suspect that mount is trying to use a new key generated by the reinstall for my user account to decrypt the image, which of course doesn't work. Is there a way I can tell mount to use the .key file I have to decrypt the image?

The OS is OpenSUSE 11.4 x86_64, but that shouldn't matter. The reinstall didn't completely go through, so I'm planning on formatting the drive and reinstalling from scratch once school gets out.

Thanks.

 

[MATLABdude]

You'll be delighted to know that your post is the first result when I Googled for encrypted img linux!

FWIW, the second result is a forum discussion wherein a poster offers the Nautilus script he wrote to uncompress and mount:
http://ubuntuforums.org/showthread.php?t=920180

 

[jhae2.718]

That's a different sitatuin than what I have, but thanks for looking. I suspect I'll have to post the question on the distro's forums, but I wanted to see if anyone on PF could come up with something first.

Maybe this time I'll learn to make sure my backups worked.