Not sure if I’m overlooking this somehow but is there a yumgroups.xml file for the [base] repository in CentOS 5?  I’ve checked a few mirrors and didn’t see it and a `yum grouplist` with only the base, updates, and extras repositories enabled looks like this:

Setting up Group Process

Setting up repositories

base                      100% |=========================| 1.1 kB    00:00    

update                    100% |=========================|  951 B    00:00    

extras                    100% |=========================| 1.1 kB    00:00    

comps.xml                 100% |=========================| 912 kB    00:00    

Failed to add groups file for repository: base

yumgroups.xml             100% |=========================| 6.8 kB    00:00    

Installed Groups:

   Yum Utilities

Available Groups:

   FreeNX and NX

   Horde

   XFCE-4.4

Done

I must be missing something obvious.  Thanks.