Thanks for submitting this bug. It looks as though you do not have any cgroups mounted. Could you please show the contents of:
dpkg -l | egrep "(cgroup|cgmanager|lxc)" and cat /proc/cgroups ** Changed in: lxc (Ubuntu) Status: New => Incomplete ** Changed in: lxc (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/1335418 Title: Can't start conteneur after update 12.04 > 14.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1335418/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs