title: Permission denied in tmp
body: <p>I just deployed a Rails 3 app with Ruby 1.9.2. I have been getting several errors.</p>
  
  <ol>
  <li><code>application.css</code> wasn't compiled. so I set pre compilation in <code>production.rb</code> to false;</li>
  <li>Then I got: <code>cannot generate tempfile</code>, so I did <code>rake tmp:clear</code>;</li>
  <li>And now I get <code>ActionView::Template::Error (Permission denied - /srv/www/appname/tmp/cache/assets):</code> and I haven't been able to fix this one.</li>
  </ol>
  
  <p>Please help.</p>