Simple Steps to Use Yum Rollback on Centos / RHEL 5 Some nice instructions on a simple backup/rollback technique for packages on Centos / RHEL 5. This can be accomplished even more easily in newer versions of yum, such as on Centos / RHEL 6, which the ‘yum history’ command. There’s a nice undo feature there now, that makes it trivial to revert a change, if you have problems with a package update for any reason.