Chapter 2 Shipped Kernels
Oracle Linux 7.5 ships with the following kernel packages:
-
kernel-3.10.0-862.el7
-
Red Hat Compatible Kernel (RHCK).
-
kernel-uek-4.1.12-112.16.4.el7uek
-
Unbreakable Enterprise Kernel Release 5 (UEK R5), which is the default kernel.
The Oracle Linux release is tested as a bundle as shipped on the installation media image. When installed from the installation media image, the minimum kernel version supported is the one included in the image. Downgrading kernel packages is not supported, unless recommended by Oracle Support.
The kernel source code for the shipped kernel is available after the initial release through a public git source code repository at https://oss.oracle.com/git/?p=linux-uek.git.
Any system that is installed using any Oracle Linux 7 ISO that is
subsequently registered with the Unbreakable Linux Network
(ULN), is automatically subscribed to the
ol7_x86_64_latest
and
ol7_x86_64_UEKR5
channels and are configured
to download the latest Unbreakable Enterprise Kernel Release 5 (UEK R5) release on the next
system update. When you run yum update just
after registering with ULN, the system is upgraded to the
Oracle Linux 7.6 release and the default kernel is automatically changed
to UEK R5. If you prefer to continue to use and alternate
kernel, such as UEK R4, you must manually change the
subscriptions for the system in ULN before you perform the
system update.
Systems that are not registered with ULN retain any existing yum
channel configuration and continue to use the kernel installed
with Oracle Linux 7.5. If you are not registered with ULN and wish to
upgrade to also use UEK R5, you must enable the
ol7_UEKR5
repository in your yum
configuration.