On Sunday, September 19th, 2010 at the Keynote Larry Ellison announced the launch of the Oracle Unbreakable Enterprise Kernel. Here are a few pages from Oracle’s site describing benefits, why, etc.:
The process to upgrade your Oracle Enterprise Linux (now simply known as Oracle Linux) to the Oracle Enterprise Kernel involves a few fairly simple steps. All of these steps assume you have a current Oracle Unbreakable Linux Network (ULN) Subscription. A variety of these items have also been made available on the Public Yum Server as well.
First, prepare your ULN Subscription by following these steps: