Had same issues as described above (update manager - no privilege, shutdown/restart not working out of menu) after upgrade from 14.04 to 14.10.
Following fixed everything: sudo apt-get install systemd-sysv
Had same issues as described above (update manager - no privilege, shutdown/restart not working out of menu) after upgrade from 14.04 to 14.10.
Following fixed everything:
sudo apt-get install systemd-sysv