Ok, thanks, and yes indeed the fstab entry was missing and I had to use the device names instead of the UUIDs. Thanks for this helpful comment.
For documentation my working setting with a key file. # crypttab cryptswap1 /dev/sdb1 /etc/cryptswap1.keyfile swap,cipher=aes-cbc-essiv:sha256 # fstab /dev/mapper/cryptswap1 none swap sw 0 0 ** Changed in: cryptsetup (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1313326 Title: Crypted swap doesn't work any more To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cryptsetup/+bug/1313326/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs