Chapter 3 Installation and Availability

The Unbreakable Enterprise Kernel Release 2 can be installed on Oracle Linux 5 Update 8 or newer, as well as Oracle Linux 6 Update 2 or newer, both running either the Red Hat compatible kernel or a previous version of the Unbreakable Enterprise Kernel. If you are still running an older version of Oracle Linux, first update your system to the latest available update release.

The kernel images are available as binary RPM packages from dedicated channels on Oracle's Unbreakable Linux Network as well as the public yum repository. Four channels are available:

  • Oracle Linux 5 (x86): ol5_i386_UEK_latest

  • Oracle Linux 5 (x86_64): ol5_x86_64_UEK_latest

  • Oracle Linux 6 (x86): ol6_i386_UEK_latest

  • Oracle Linux 6 (x86_64): ol6_x86_64_UEK_latest

Existing Oracle Linux 5 or Oracle Linux 6 installations can be upgraded to UEK R2 by enabling the appropriate UEK_latest channel and running yum update. The channel is automatically enabled for freshly installed Oracle Linux 6 Update 3 systems that shipped with the 2.6.39-200 kernel version of UEK R2.

For detailed instructions on how to download and install the Unbreakable Enterprise Kernel on Oracle Linux see the Getting Started with the Unbreakable Enterprise Kernel for Oracle Linux document on the Oracle Technology Network (OTN) at

If you have questions regarding configuring or using yum to install updates, refer to the Oracle Linux Administrator's Solutions Guide at

The kernel's source code is available via a public git source code repository at