I did a clean install of 15.04, tried to enable hibernation per instruction from http://ubuntuhandbook.org/index.php/2014/10/enable-hibernate-option-in-ubuntu-14-10-unity/
but it works only if I boot with upstart and not with systemd.
How can I get it to work with systemd?
EDIT>After installing hibernate package I can run it from the terminal, but still it is not available in the shutdown menu.