Adding EPEL repository - Centos

wget http://download.fedora.redhat.com/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm

rpm2cpio epel-release-5-4.noarch.rpm  | cpio -idv
-- This creates a local ./etc directory


find /etc
-- locate the GPG key file

sudo rpm --import ./etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL

sudo rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm