Hi Wonder how's the relationship between the centos 6's main OS/ repository and redhat 6's repositories. Let's say, Redhat 6 seperate RPMs into a series of repos like: redhat-6-server ##(base redhat 6 OS/) redhat-6-server-optional redhat-6-server-supplementary redhat-6-server-rhev-agent rhel-6-server-cf-tools ... Does centos 6 merge all the redhat 6 repos into one big repository? or still leave out some minor/functional ones? If the second is true, then it will be great if we can find the repo mapping link between Redhat 6 and centos 6. Thanks a lot. --Rob