Yes, the latest OEL 5. UEK = "Unbreakable Enterprise Kernel" http://www.oracle.com/us/technologies/linux/ubreakable-enterprise-kernel-linux-173350.html On Fri, Dec 23, 2011 at 5:29 PM, Laurent, Vincent <Vince_Laurent@xxxxxxxxx>wrote: > I assume you meant the first choice? What is ?UEK??**** > > ** > -- Niall Litchfield Oracle DBA http://www.orawin.info -- //www.freelists.org/webpage/oracle-l