On Mon, Jul 23, 2012 at 9:15 AM, <m.roth at 5-cent.us> wrote: > everyone > knows that some other elrepo packages result in conflicts with the base > CentOS repositories. Just to clarify -- From the ELRepo web site ( http://elrepo.org ): elrepo This is the main channel and is enabled by default. As this channel should not contain packages also present in the distribution, it should be safe to run a 'yum update' with this repository channel enabled. elrepo-extras The elrepo-extras channel provides packages and their dependencies that replace/update RHEL distribution packages. It may be enabled in the /etc/yum.repos.d/elrepo.repo file or used with 'yum --enablerepo=elrepo-extras'. In other words, the packages in the elrepo-extras repo may conflict with the distro packages but this repo is shipped disabled by default. Using elrepo is therefore safe unless you make modifications of course ... Akemi