If you have a subscription to Oracle Unbreakable Linux support, you can obtain the packages for Unbreakable Enterprise Kernel Release 4 by registering your system with the Unbreakable Linux Network (ULN) and subscribing it to additional channels. See Subscribing to ULN Channels.

If your system is not registered with ULN, you can obtain most of the packages from the Oracle Linux yum server. See Enabling Access to Oracle Yum Channels.

Having subscribed your system to the appropriate channels on ULN or the Oracle Linux yum server, upgrade your system. See Upgrading Your System.

After upgrading to UEK R4, you can replace any existing OFED packages with the Oracle-supported OFED packages, see Installing the Oracle-Supported OFED Packages.