Earlier today, I was fixing a RHEL5 server and was getting the following error:




Error: yum conflicts with yum-rhn-plugin < 0.5.3-30.el5

I’m running RHEL without connecting to the Redhat Network (Using CENTOS’s repositories).  The solution?




yum remove yum-rhn-plugin

then, try again:




yum -y update

출처 : http://www.stephenbalaban.com/error-yum-conflicts-with-yum-rhn-plugin-0-5-3-30-el5-updating-redhat-rhel5-without-redhat-network/