It's because RefuseManualStart=yes is in graphical-session-pre.target. The run-* scripts start graphical-session-pre.target explicitly, because https://github.com/systemd/systemd/issues/3750 means that it doesn't work properly wrt. ordering if you just start the end .target.
I'm guessing this should be =no until that bug is fixed. ** Bug watch added: github.com/systemd/systemd/issues #3750 https://github.com/systemd/systemd/issues/3750 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1615341 Title: Yakkety desktop fails to start To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1615341/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
