My test with different priorities didn't have any effect. > What files you have in "/etc/yum.repos.d"? CentOS-Base.repo CentOS-Debuginfo.repo CentOS-Sources.repo devel.asc epel-testing.repo CentOS-CR.repo CentOS-fasttrack.repo CentOS-Vault.repo epel.repo Kolab:3.4.repo Kolab:3.4:Updates.repo