Same problem here, encrypted volumes not mapped. I could see cryptsetup messages briefly flowing by during boot, so it really looks like upstart calls cryptsetup to map these volumes.
-- Upstart doesn't activate luks volumes in cryptsetup https://launchpad.net/bugs/62751 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs