I have some basic questions, easy to most of you, I am sure. I have looked on the CentOS main site at the install manual, but am not finding my answers. Am I at the right place? I already know how to make install DVDs and CDs. I just need to know if there is things for the CentOS director, comps.xml updates, things like this for my customized DVD. I want to delete packages on my install DVD until I only have the rpms left that I want to use. Current questions: 1. Just how are the hdr (header) files used, and how do you update them? 2. How do I update the comps.xml file, and is this necessary ? 3. Why isn't /var/log/rpmpkgs on my prototype, which rpm or command makes it work? 4. Which files will update automatically when rpms are removed, and can I safely just remove RPMs from the CerntOS/RPM directory? I apologize in advance if this is not the right forum to ask these questions. I would be happy if directed to a proper site to find my answers. I have already googled, with little results. Marianne Rodgers PCS (Portable Computer System Group) Operating System Analyst United Space Alliance marianne.rodgers at boeing.com 281-244-4200 The comments & Opinions expressed are my own & do not represent the views of United Space Alliance