title: How to change the jenkins home directory location?
body: <p>Simple question: How to change the jenkins home directory location? By default it points to /var/lib/jenkins whereas I want it to point to /mnt/home/jenkins. I have changed my $JENKINS_HOME to /mnt/home/jenkins but it doesn't help me.</p>
  
  <p>I am getting jenkins Ui problem. see below error.  If i leave same /var/lib/jenkins/ it's working fine.
  HTTP ERROR: 503</p>
  
  <p>Problem accessing /. Reason:</p>
  
  <pre><code>Service Unavailable
  </code></pre>
  
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