Upgraded to Fedora Core 3? yum-arch tells you it has been deprecated? yum won't read your repositories anymore, complaining that repomd.xml doesn't exist? You've been to http://linux.duke.edu/projects/metadata and it doesn't tell you what has replaced yum-arch? Sigh, me too. The magic answer is 'createrepo', there's an RPM for it that comes with FC3.