title: CoreOS: why still get reboot message after turning reboot strategy to off?
body: <p>I still get this.</p>
  
  <pre><code>$ vagrant ssh
  
  ...
  
  CoreOS stable (681.2.0)
  
  Broadcast message from locksmithd at 2015-07-23 23:41:12.013908559 +0000 Local 
  System reboot in 5 minutes!
  </code></pre>
  
  <p>But I already set it off.</p>
  
  <pre><code>$ cat user-data.in
  #cloud-config
  ---
  coreos:
    update:
      reboot-strategy: off
  </code></pre>
  
  <p>Also inside,</p>
  
  <pre><code>$ cat /etc/coreos/update.conf
  GROUP=stable
  REBOOT_STRATEGY=off
  </code></pre>
  
  <p>So why it still reboots?
  Any other place to turn it off?
  Thank you so much for the help.</p>