Hi It looks like my yum lost the comps.xml file. It does not know about groups. What can I check out, what can I change to make it right again? I already moved the comps.xml file several places around currently I have it at /var/cache/yum/core/comps.xml I have Fedora 5 and here is the output I get for yum grouplist [root@bloody ~]# yum grouplist Loading "installonlyn" plugin Setting up Group Process Setting up repositories atrpms [1/10] atrpms-testing [2/10] gstreamer [3/10] kde-redhat [4/10] release [5/10] flash [6/10] updates [7/10] freshrpms [8/10] extras [9/10] ivazquez [10/10] Error: No Groups on which to run command [root@bloody ~]# Thanks Javier