title: DRBD - How to initialize primary without any secondary server available?
body: <p>Here is the normal way to initialize the drbd partition:</p>
  
  <p>ON BOTH SERVERS</p>
  
  <pre><code>drbdadm create-md r0
  drbdadm up r0
  </code></pre>
  
  <p>Both servers should be now connected, check with </p>
  
  <p>ONLY ON PRIMARY</p>
  
  <pre><code>drbdadm -- --overwrite-data-of-peer primary r0
  cat /proc/drbd
  </code></pre>
  
  <p>AFTER BOTH SERVERS UP-TO-DATE - ON PRIMARY</p>
  
  <pre><code>mkfs –t ext4 –b 4096 /dev/drbd0
  </code></pre>
  
  <p>I now tried to prepare a primary without secondary available (e.g. customer
  wants a single server system and probably later wants to add a hot-standby
  server)</p>
  
  <pre><code>drbdadm create-md r0
  drbdadm up r0
  drbdadm primary r0
  </code></pre>
  
  <p>I got the error: </p>
  
  <blockquote>
    <p>0: State change failed: (-2) Need access to UpToDate data</p>
  </blockquote>
  
  <p>Is there a solution ?</p>