title: Running docker Ubuntu image on Debian enironment
body: <p>Just started to use Docker. Have some questions about linux containers )</p>
  
  <p>How can i run Ubuntu image on a Debian installed OS ? Or it is just a name of image called 'Ubuntu' that actually use Debian environment ...</p>
  
  <pre><code># cat /proc/version
  
  Linux version 3.16.0-0.bpo.4-amd64 (debian-kernel@lists.debian.org) (gcc version 4.6.3 (Debian 4.6.3-14) ) #1 SMP Debian 3.16.7-ckt2-1~bpo70+1 (2014-12-08)
  
  # docker run -i -t ubuntu
  
  root@bcade5ce3b94:/# cat /proc/version
  
  Linux version 3.16.0-0.bpo.4-amd64 (debian-kernel@lists.debian.org) (gcc version 4.6.3 (Debian 4.6.3-14) ) #1 SMP Debian 3.16.7-ckt2-1~bpo70+1 (2014-12-08)
  </code></pre>
  
  <p>What about the filesystem ? It use the same installed components or a new fs architecture that just depends on kernel ?</p>
  
  <p>Maybe there is a good articles about the subject )</p>