I installed nvidia driver from the repository ELRepo. kmod-nvidia-295.71-1.el6.elrepo.i686.rpm. before the installation was successful in centOS 6.2. I can find the instructions to install the nvidia driver from the official site nvidia.com. I can find instructions on the Internet for other sites to install centOS 6.3 official driver. These instructions work in oraclelinux 6.3?