Re: OMG! Think I did something stupid with dmcrypt

[Kevin Buhr <buhr+debian@asaurus.net>]

Andrew Henry <adhenry@bredband.net> writes:
>
> I have debian lenny on a server with full disk encryption (the guided
> partitioning option) and an external usb WD Mybook that is also
> encrypted with dmcrypt/LUKS.

LUKS stores the encrypted master key (generally decryptable by
supplying just the passphrase, though it's possible for a keyfile to
be used) in a header at the start of the partition.  So, you probably
haven't lost your data.

But why are we talking about this?  Have you tried sticking your
bloody USB stick in a Linux machine and mounting the partition?  If
you need to do it manually:

        cryptsetup luksOpen /dev/sda1 mydata
        ...enter passphrase when prompted...
        mount /dev/mapper/mydata /mnt
        ls /mnt

where "/dev/sda1" is the partition.

Good luck!

-- 
Kevin <buhr+debian@asaurus.net>