http://docs.oracle.com/cd/E37670_01/E37355/html/ol_create_repo.html
mount -o loop,ro /ISOs/V33411-01.iso /var/OSimage/OL6.3_x86_64
/etc/yum.repos.d/OL63.repo
[OL63] name=Oracle Linux 6.3 x86_64 baseurl=file:///var/OSimage/OL6.3_x86_64 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY gpgcheck=1 enabled=1
# yum clean all
# yum repolist