How to set up EPEL repository on CentOS

If you are using CentOS or RHEL, it is strongly recommended that you configure EPEL (Extra Packages for Enterprise Linux) repository on your system. EPEL is a community effort to create a repository of high-quality add-on freeware packages for RHEL-based distributions. Once you set up EPEL repository, you can use yum command to install any of close to 7,000 EPEL packages.

In order to enable EPEL repository on your CentOS system, you need to check CentOS version. To do that, run the following command.

$ cat /etc/redhat-release
CentOS release 6.3 (Final)

Then install an EPEL repository rpm file as follows. Note that the rpm file does not depend on the underlying processor architecture (e.g., 32-bit/64-bit x86, ppc, sparc, alpha, etc), so no need to pay attention to processor architecture difference.

For CentOS 5.*:

$ sudo rpm -Uvh http://mirrors.kernel.org/fedora-epel/5/i386/epel-release-5-4.noarch.rpm

For CentOS 6.*:

$ sudo rpm -Uvh http://mirrors.kernel.org/fedora-epel/6/i386/epel-release-6-8.noarch.rpm

To verify that EPEL yum repository has been set up successfully, run the following command to list all available repositories on your system.

$ yum repolist
repo id            repo name                                              status
base               CentOS-6 - Base                                        4,776
epel               Extra Packages for Enterprise Linux 6 - i386           6,913
extras             CentOS-6 - Extras                                         17
updates            CentOS-6 - Updates                                       960
repolist: 12,666

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