title: Portainer create new volume
body: <p>I would like create new volume in <code>Portainer</code>. So, in Volumnes page and <code>Create Volume</code>, i want add my <code>/media/USBNAS</code> to <code>/media</code> container folder :</p>
  
  <p><code>
  Driver options
  name : /media/USBNAS value : /media
  </code></p>
  
  <p>But i've an error message with <code>invalid option key: "/media/USBNAS"</code></p>
  
  <p>There is something I'm doing wrong, but I do not know what</p>