> How would they be different from Oracle if they did that as a business? > > -- Oracle's RH derivitive has a different mission than Centos. Their distro is pre-configured to handle typical Oracle DB workloads by shipping with different kernel settings, modules and apps that are not part of standard RH. It is primarily meant to ease Oracle deployments for shops that have a great amount of RH in-house knowledge and expertise. Their version is not meant to be a general purpose server platform. While they offer compatibility with stock RH, you need to do further configuration if you want something closer to a clone distro.