> yes, and if yum was able to collect repodata that spans multiple repos > and multiple hosts for those repos - what you are saying will work fine. > But, I dont think it does. Sorry, Karanbir and Michael, but you've lost me. Would the updateinfo.xml.gz not be generated on the CentOS repository itself? E.g., http://linuxsoft.cern.ch/cern/slc510/updates/x86_64/RPMS/repodata/ http://linuxsoft.cern.ch/cern/slc65/updates/x86_64/RPMS/repodata/ CentOS repos have the other XML files in their repodata directories, but lack the updateinfo.xml. Shatil (@shatil)