How to cleanly reboot core OS when "Failed to talk to init daemon" is seen? : <p>How do I cleanly reboot my coreOS after the following issue shows up?</p>

<pre><code>core@node2 ~ $ sudo reboot
Failed to talk to init daemon
core@node2 ~ $ sudo shutdown -r now
Failed to talk to init daemon.
core@node2 ~ $ sudo systemctl reboot
Failed to get D-Bus connection: Operation not permitted
core@contiv-node2 ~ $ shutdown
Must be root.
core@node2 ~ $ sudo shutdown
Unable to perform operation without bus connection.
core@node2 ~ $ cat /etc/lsb-release 
DISTRIB_ID=CoreOS
DISTRIB_RELEASE=991.2.0
DISTRIB_CODENAME="Coeur Rouge"
DISTRIB_DESCRIPTION="CoreOS 991.2.0 (Coeur Rouge)"
</code></pre>
