I seem to have got it!! It is the ssh-server which checks /dev/null on start... I disabled it in /etc/init/ssh.conf and problem solved!! :)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/575333 Title: On boot keeps trying to mount "UDEVD-WORK..../dev/null" -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs