I'm having the same issue now. I upgraded from Ubuntu 16.04 to 16.10. I was able to boot twice into a running system, but I had no luck the other times besides from these two times.
However, this gives you the chance to, hopefully, solve this issue. And as I'm landing in the recovery console with decrypted and mounted root partition I guess it may be solvable. I can't really remember how the cryptsetup stuff worked so it may really be related to some changed / referenced uuids? I found posts from other people with the same issue but none of them seem to got it solved. ** Attachment added: "logs" https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1463023/+attachment/4782351/+files/logs.tar.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1463023 Title: systemd Timed out waiting for device swap and file system check To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1463023/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs