title: I keep getting "bsdtar: Failed to set file flags" when I try do pull base
body: <p>I wanted to start playing with <em>docker</em> last night but couldn't get it working. I would run the simple command <code>docker pull base</code> and it would take its time to download 98M of data. Then it would complain with several lines of <code>./usr/blah/foobar bsdtar: Failed to set file flags</code>. If I would try it again, the download would start over from the beginning, not even resume or discover that it had already finished earlier.</p>
  
  <p>What would I need to do to get this working?</p>
  
  <p>My root filesystem was a btrfs filesystem. Could this be causing the problem?</p>
  
  <p>If someone could tell me <em>why</em> btrfs was a problem, that would be a better answer than just fixing the problem.</p>