1. Release Notes for Unbreakable Enterprise Kernel Release 4 Update 6
  2. Installation and Availability
  3. Upgrading Your System

Upgrading Your System

To upgrade your system to UEK R4:

  1. After enabling access to the appropriate channels, including ol6_UEKR4 or ol7_UEKR4, on the Oracle Linux yum server or ol6_x86_64_UEKR4 or ol7_x86_64_UEKR4 on ULN, run the following command: 

    # yum update

  2. After upgrading the system, reboot it, selecting the UEK R4 kernel (version 4.1.12) if this is not the default boot kernel.

    See Boot and Service Configuration chapter in Oracle Linux 7: Administrator's Guide for more information on updating the default boot kernel on Oracle Linux 7.

    See https://docs.oracle.com/en/operating-systems/oracle-linux/6/admin/ol_bootconf.html for more information on updating the default boot kernel on Oracle Linux 6.

For instructions on how to install the Oracle-supported OFED packages after upgrading to UEK R4, see Installing the Oracle-Supported OFED Packages.

If you are upgrading from Oracle Linux 7 Update 3 to Oracle Linux 7 Update 4 and you already have Oracle-supported OFED packages for UEK R4 installed on your system, follow the upgrade procedures that are described in Oracle® Linux 7: Release Notes for Oracle Linux 7.4.

See https://docs.oracle.com/en/operating-systems/oracle-linux/6/admin/ol_yum.html in Oracle® Linux 6: Administrator's Guide or the Yum chapter in in Oracle Linux 7: Administrator's Guide for more information.

The kernel's source code is available via a public git source code repository at https://oss.oracle.com/git/?p=linux-uek.git;a=summary.