3.1 Switching a System to UEK R3 (ULN)

If you have a subscription to Oracle Unbreakable Linux support, you can obtain the packages for Unbreakable Enterprise Kernel Release 3 (UEK R3) by registering your system with the Unbreakable Linux Network (ULN) and subscribing it to additional channels.

Before you begin:

To Switch a System to UEK R3:

  1. Using a browser, log in at http://linux.oracle.com with the ULN user name and password that you used to register the system.

  2. On the Systems tab, click the link named of your system in the list of registered machines.

  3. On the System Details page, click Manage Subscriptions.

  4. On the System Summary page, select each required channel in the Available Channels list and click the right arrow to move the channel to the Subscribed Channels list.

    The kernel image and user-space packages are available on the following ULN channels:

    Channel Name

    Description and Channel Label

     

    Oracle Linux 6 Latest (x86_64)

    All packages released for Oracle Linux 6 (x86_64) including the latest errata packages. (x86_64).

    (ol6_x86_64_latest)

     

    Unbreakable Enterprise Kernel Release 3 for Oracle Linux 6 (x86_64) - Latest

    Latest packages for Unbreakable Enterprise Kernel Release 3 for Oracle Linux 6 (x86_64).

    Contains the kernel-uek*, dtrace-modules-*, libdtrace-*, and uname26 packages.

    (ol6_x86_64_UEKR3_latest)

     

    Oracle Linux 6 Dtrace Userspace Tools (x86_64) - Latest

    The latest DTrace userspace tools for Oracle Linux 6 (x86_64).

    Contains the dtrace-utils* packages.

    (ol6_x86_64_Dtrace_userspace_latest)

     

    OFED supporting tool packages for Unbreakable Enterprise Kernel on Oracle Linux 6 (x86_64)

    Latest OpenFabrics Enterprise Distribution (OFED) supporting tools for the Unbreakable Enterprise Kernel (UEK) on Oracle Linux 6 (x86_64).

    (ol6_x86_64_ofed_UEK)

     

    HA Utilities for MySQL and Oracle Linux 6 (x86_64)

    Management Utilities for MySQL HA with Oracle Linux 6.

    Contains the drbd84-utils package.

    (ol6_x86_64_mysql-ha-utils)

     

    As a minimum, you should subscribe the system to the ol6_x86_64_latest and the ol6_x86_64_UEKR3_latest channels. If required, you can also add the channels for the DTrace, OFED, and DRBD packages.

    Caution

    Take care not to select the ol6_x86_64_UEK_BETA channel.

    Because you are switching to the latest UEK kernel, you no longer need to subscribe the system to the previous UEK R2 (ol6_x86_64_UEK_latest) channel.

  5. When you have finished selecting channels, click Save Subscriptions and log out of ULN.

  6. Log in as root on the system.

  7. Upgrade all packages on the system, including kernel packages.

    # yum update

    By default, the boot manager automatically enables the most recent kernel version so you do not need to change your GRUB configuration.

  8. Reboot the system.

    # shutdown -r now