Comment 3 for bug 521394

Ah right - if cryptsetup isn't installed, the "enter password" dialog still appears, but entering the password doesn't actually do anything. The problem here is probably with gvfs adding two entries for a single device, though it is claiming that "cryptsetup exited with exit code 239"

This is a default Ubuntu/Gnome desktop. I haven't added anything other than a few codecs and programming tools.