Comment 42 for bug 88213

After playing around I found an odd "solution" (Note that I placed solution in question marks).

I am unable to mount any encrypted device when I encrypt the entire drive such as /dev/sdc rather than /dev/sdc1.

If I format the device as one filesystem and then use luksformat to format the resulting /dev/sdx1 I now have a luks encrypted drive that will automatically mount using gnome-mount. I figured something had to be wrong with the partition type since I kept seeing unknown partition type in my logs when I tried to mount the drive.

I formatted the drive as vfat, then created a vfat luks container and moved a file to it. If I plug the drive into my wifes windows box it sees the drive as unreadable and if I use freeotfe I can mount it and it sees it as a proper luks encrypted volume...

So is this a normal issue and I never should have been able to encrypt a volume using /dev/sdc and should only use /dev/sdc1? Does this "solution" seem weird to anyone else?!