title: CouchDB won't start, no specific error
body: <p>When trying to start as a service on Ubuntu 12.04.4, I get:</p>
  
  <pre><code>$ sudo service couchdb start
   * Starting database server couchdb                                      [fail]
  </code></pre>
  
  <p>Nothing in <code>/usr/local/var/log/couchdb</code>, nothing in <code>syslog</code> or <code>dmesg</code>.  I have no idea why it won't load. How can I troubleshoot this?</p>