My computer stopped working so I'm plugging the hard drive with a USB adapter to another computer to recover my files. After plugging it the passphrase prompt appears to unlock the volume, I type the passphrase and get this: "Unable to mount Encrypted Drive: The unlocked device does not have a recognizable file system on it."
The passphrase is correct. The drive was encrypted using the Debian installation. The GRUB partition mounts ok.
It's possible the encrypted filesystem is toast. Hopefully not.
Depending on what sorts of encryption options you chose, you may need slightly different commands. But you can try this to start. If it doesn't just work, looking at where it fails may help you debug your problem better.
# cryptsetup luksOpen /dev/sdb5 foo # mount /dev/mapper/foo /mnt You should be prompted to enter your password during the cryptsetup step. You'll obviously have to figure out what is /dev/sdb5 on your own. I think you can use any name for foo to get it mounted, just use the same name in both steps. With any luck, mount will give you useful errors (check dmesg or /var/log/syslog, too). You may even be able to run fsck against /dev/mapper/foo if the encfs is corrupted, but I really don't know.
A friend helped me with this.
$ umount /media/user/... manually unmount filesystem
$ lvs information about logical volumes
$ vgs information about volume groups
$ vgchange -a y X change attributes of a volume group
$ lvs
$ fsck.ext4 -y /dev/mapper/x-root "filesystem checker" check and optionally repair filesystems
$ mount /dev/mapper/x-home /mnt manually mount filesystem
The moment the filesystem was mounted i copied all information on the external drive.