title: Additionals rpm to red hat iso with a kickstart file
body: <p>I spent a very long time searching for an answer in internet but I
     found nothing. I want to add custom rpm to a red hat workstation iso
     dvd. I do the following things:  </p>
  
  <ul>
  <li><p>mount a red hat iso (<code>mount -t iso9660
  rhel-workstation-6.4-i386-dvd.iso /mnt/iso</code>)</p></li>
  <li><p>copy all dvd files to a directory including hidden .discinfo and .treeinfo files :<br>
  <code>cp -R /mnt/iso/* /tmp/isofiles;<br>
  cp/mnt/iso/.discinfo /tmp/isofiles;<br>
  cp /mnt/iso/.treeinfo /tmp/isofiles</code></p></li>
  <li><p>then I add additionals rpm to the <code>/tmp/isofiles/Packages</code> directory which is a part of the dvd tree  </p></li>
  <li>then I rebuild the repo in <code>/tmp/isofiles</code> with the command createrepo (<code>createrepo --update -g comps.xml</code> .)  </li>
  <li>at last I rebuild the iso with <code>mkisofs</code> and burn it to a dvd.   Note that I also have a kickstart file to automate the installation.
  The problem is that during the rpm installation step the dvd is
  ejected and I have a message that ask me to insert the Red Hat Linux
  Entreprise disc 1. I don't understand why. This only appears if I
  modified the repository. Can you help me please ?</li>
  </ul>