On 17/06/2010 20:49, Mark Pryor wrote: > there are 2 solutions here. Try the plugin problem fix first. > http://just-another.net/2008/11/22/centos-5-upgrade-and-yum/ Dude, that is just random url spamming in irrelevant situations. Whats on that webpage has nothing to do with Jerry's problem. Jerry is sitting behind a broken proxy server, or ( unlikely) hitting a bad mirror which is returning 404's or has a libxml issue that Les already pointed to. That traceback is clearly a case of the xml layer in yum not getting parse-able content, or itself being broken. - KB