The software described in this documentation is either in Extended Support or Sustaining Support. See for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

1.1 Supported Kernels

Oracle Linux 6 Update 4 ships with two sets of kernel packages:

  • Unbreakable Enterprise Kernel Release 2 (kernel-uek-2.6.39-400.17.1.el6uek)

  • Red Hat Compatible Kernel (kernel-2.6.32-358.el6)

By default, both the Unbreakable Enterprise Kernel and the Red Hat Compatible Kernel for the specific architecture (i386 or x86_64) are installed and the system boots the Unbreakable Enterprise Kernel.

To make your system use the Red Hat Compatible Kernel by default:

  1. Edit /etc/grub.conf and change the value of the default parameter to indicate the Red Hat Compatible Kernel. (Each entry for a bootable kernel in the file starts with a title definition. The entries are effectively numbered from 0 upwards, where 0 corresponds to the first entry in the file, 1 to the second entry, and so on. To view the GRUB manual, use the info grub command.)

  2. Edit /etc/sysconfig/kernel and change the setting for the default kernel package type from DEFAULTKERNEL=kernel-uek to DEFAULTKERNEL=kernel.