title: tape archiver and gnuzip
body: <p>i have many troubles with installing a vpn client. Now i try to follow another installing list:</p>
  
  <p>There i have to download this archive-file: <code>anyconnect-predeploy-linux-64-4.3.05017-k9.tar 6.59.23 AM.gz</code> and extracting the tar archive with <code>tar xzvf</code>  But i get the following error message </p>
  
  <pre><code>tar (child): Error is not recoverable: exiting now
  tar: Child returned status 2
  tar: Error is not recoverable: exiting now
  </code></pre>
  
  <p>What does that mean? Is there a package missing? </p>