title: Can't start MongoDB on Ubuntu 16.10
body: <p>I am trying to install mongodb on ubuntu 16.10, though it's not listed in supported versions.
  I first got this error trying to start the mongo shell:</p>
  
  <pre><code>MongoDB shell version v4.0.0
  connecting to: mongodb://127.0.0.1:27017
  2018-07-12T11:15:00.464+0200 E QUERY    [js] Error: couldn't connect 
  to server 127.0.0.1:27017, connection attempt failed: SocketException: 
  Error connecting to 127.0.0.1:27017 :: caused by :: Connection refused 
  :
  connect@src/mongo/shell/mongo.js:251:13
  @(connect):1:6
  exception: connect failed
  </code></pre>
  
  <p>I tried running <code>sudo service mongod start</code> but I'm getting <code>Unit mongod.service not found.</code>
  I also tried modifying the mongodb.service file, checking for locked files, running repair commands and reinstalling mongo.</p>
  
  <p>Logging files are not found in the specified location in <code>mongod.conf</code>, there is no <code>mongodb</code> directory in <code>/var/log</code>.</p>