On the other hand, look at the sample yum.conf are the fedorafaq site: http://www.fedorafaq.org/samples/yum.conf
See that the fedora.us release version is hard-coded at 2, because the fedora.us guys have only recently got their FC3 repository up and so everyone was using the FC2 packages instead. Everyone that has done this will at some point need to edit their yum.conf to update to the new repo, or get packages for the wrong distribution.
Paul.
Yes... this also means a potential threat to brake your system.
