Quote Originally Posted by andreas-rabus View Post
This Wiki Guide seems to be for upstart not systemd, or all ubuntu versions before 15.04.

systemd seems to try to mount the swap partition before the crypt stuff is setup and fails if the encrpyted swap is tried after crypt setup.
On an arch wiki i found the hint to make the type of the swap partition not "swap", but this did no work for me.
Encrypted swap (and hibernate) continues to work for me on Ubuntu 16.04. Granted I set it up a while ago, but that was the procedure I used.

I don't see anything upstart- or systemd-specific with those instructions... Did you set up "regular" encrypted swap (using ecryptfs-setup-swap) before starting? Did you follow the instructions exactly (especially step 8, editing /etc/crypttab)? What do you see when your computer boots?