this seems to be a known bug. Go to /var/cache/yum/ and "rm -f
*/cachecookie". yum should work fine after removing these files.
Just run yum clean all and it seems to have deleted all of the
repomd.xml files from the repositories I normally grab updated from
(development, extras-development and freshrpms). While I was able to
replace the development one, I can't find the other two.
Anyone else seeing this and could some kind soul email me the two
repomd.xml files for extras-devel and freshrpms?