Back in 2012 I wrote the article below, see Original content:
While that is still certainly possible today, we have, since, made our own EPEL mirror available as part of our Oracle Linux yum repos.
You no longer have to install the EPEL repo file and point to an external site. We have ol7_developer_EPEL on yum.oracle.com
name=Oracle Linux $releasever Developement Packages ($basearch)
For new installations, a new OL7 install contains the above repo section already but it's disabled by default so you have to set enabled=1.
There's a Fedora project called EPEL which hosts a set of additional packages that can be installed on top of various distributions such as Red Hat Enterprise Linux, CentOS, Scientific Linux and of course also Oracle Linux. These packages are not distributed by the distribution vendor and as such also not supported by the vendors (including Oracle) however for users that want to pick up some extras that are useful, it's very easy to do this.
All you need to do is download the EPEL RPM from the website, install it on Oracle Linux 5 or Oracle Linux 6 and run yum install or yum search to get the packages.
example : # wget http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-5.noarch.rpm # rpm -ivh epel-release-6-5.noarch.rpm # yum repolist Loaded plugins: refresh-packagekit, rhnplugin repo id repo name status epel Extra Packages for Enterprise Linux 6 - x86_64 7,124