tarbots: ORACLE LINUX: How To Upgrade Oracle Linux 8 (OL8) UEK6 Kernel To UEK7 Kernel?

Following are steps to upgrade OL8 from UEK6 to UEK7 Kernel.

1) List all the Repositories to check with repos are enabled and which are disabled.

dnf repolist all

2) Disable all the repos which are enabled

find /etc/yum.repos.d -type f -exec sed -i -e 's/enabled=1/enabled=0/g' {} \;

3) Enable OL8 UEK7 kernel repo which is OL8_UEKR7

For this use below commands.

sudo dnf config-manager --enable ol8_UEKR7

sudo dnf config-manager --enable ol8_UEKR7_RDMA

sudo dnf config-manager --enable ol8_baseos_latest

4) Update the UEK kernel to UEK7

For this run below command.

sudo dnf update -y kernel kernel-uek

Above steps should upgrade the UEK kernel and RHCK (redhat compatible kernel) kernel (to latest OL8 UEK7 & RHCK kernel.

Below is sample output.

# sudo dnf update -y kernel kernel-uek
Oracle Linux 8 BaseOS Latest (x86_64) 8.6 kB/s | 4.3 kB 00:00
Oracle Linux 8 BaseOS Latest (x86_64) 5.2 MB/s | 87 MB 00:16
Latest Unbreakable Enterprise Kernel Release 7 for Oracle Linux 8 (x86_64) 5.4 MB/s | 55 MB 00:10
Oracle Linux 8 UEK7 RDMA (x86_64) 49 kB/s | 46 kB 00:00
Last metadata expiration check: 0:00:01 ago on Thu 30 Jan 2025 01:10:10 AM UTC.
Dependencies resolved.
==============================================================================================================
Package Arch Version Repository Size
==============================================================================================================
Installing:
kernel x86_64 4.18.0-553.36.1.el8_10 ol8_baseos_latest 10 M
kernel-core x86_64 4.18.0-553.36.1.el8_10 ol8_baseos_latest 43 M
kernel-modules x86_64 4.18.0-553.36.1.el8_10 ol8_baseos_latest 36 M
kernel-uek x86_64 5.15.0-304.171.4.3.el8uek ol8_UEKR7 2.9 M
Upgrading:
linux-firmware noarch 999:20241003-999.35.git95bfe086.el8 ol8_baseos_latest 384 M
Installing dependencies:
kernel-uek-core x86_64 5.15.0-304.171.4.3.el8uek ol8_UEKR7 62 M
kernel-uek-modules x86_64 5.15.0-304.171.4.3.el8uek ol8_UEKR7 71 M
linux-firmware-core noarch 999:20241003-999.35.git95bfe086.el8 ol8_baseos_latest 2.1 M

Transaction Summary
==============================================================================================================
Install 7 Packages
Upgrade 1 Package

Total download size: 612 M
Downloading Packages:
(1/8): kernel-4.18.0-553.36.1.el8_10.x86_64.rpm 2.7 MB/s | 10 MB 00:03
(2/8): linux-firmware-core-20241003-999.35.git95bfe086.el8.noarch.rpm 2.3 MB/s | 2.1 MB 00:00
(3/8): kernel-uek-5.15.0-304.171.4.3.el8uek.x86_64.rpm 1.8 MB/s | 2.9 MB 00:01
(4/8): kernel-modules-4.18.0-553.36.1.el8_10.x86_64.rpm 1.6 MB/s | 36 MB 00:23
(5/8): kernel-core-4.18.0-553.36.1.el8_10.x86_64.rpm 1.1 MB/s | 43 MB 00:39
(6/8): kernel-uek-core-5.15.0-304.171.4.3.el8uek.x86_64.rpm 1.8 MB/s | 62 MB 00:34
(7/8): kernel-uek-modules-5.15.0-304.171.4.3.el8uek.x86_64.rpm 1.3 MB/s | 71 MB 00:53
(8/8): linux-firmware-20241003-999.35.git95bfe086.el8.noarch.rpm 4.8 MB/s | 384 MB 01:20
--------------------------------------------------------------------------------------------------------------
Total 5.1 MB/s | 612 MB 02:00
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Running scriptlet: linux-firmware-999:20241003-999.35.git95bfe086.el8.noarch 1/1
Preparing : 1/1
Installing : linux-firmware-core-999:20241003-999.35.git95bfe086.el8.noarch 1/9
Running scriptlet: kernel-uek-core-5.15.0-304.171.4.3.el8uek.x86_64 2/9
Installing : kernel-uek-core-5.15.0-304.171.4.3.el8uek.x86_64 2/9
Running scriptlet: kernel-uek-core-5.15.0-304.171.4.3.el8uek.x86_64 2/9
Upgrading : linux-firmware-999:20241003-999.35.git95bfe086.el8.noarch 3/9
Installing : kernel-core-4.18.0-553.36.1.el8_10.x86_64 4/9
Running scriptlet: kernel-core-4.18.0-553.36.1.el8_10.x86_64 4/9
Installing : kernel-modules-4.18.0-553.36.1.el8_10.x86_64 5/9
Running scriptlet: kernel-modules-4.18.0-553.36.1.el8_10.x86_64 5/9
Installing : kernel-uek-modules-5.15.0-304.171.4.3.el8uek.x86_64 6/9
Running scriptlet: kernel-uek-modules-5.15.0-304.171.4.3.el8uek.x86_64 6/9
Installing : kernel-uek-5.15.0-304.171.4.3.el8uek.x86_64 7/9
Installing : kernel-4.18.0-553.36.1.el8_10.x86_64 8/9
Cleanup : linux-firmware-999:20210617-999.8.git0f66b74b.el8.noarch 9/9
Running scriptlet: linux-firmware-core-999:20241003-999.35.git95bfe086.el8.noarch 9/9
Running scriptlet: kernel-uek-core-5.15.0-304.171.4.3.el8uek.x86_64 9/9
Running scriptlet: kernel-core-4.18.0-553.36.1.el8_10.x86_64 9/9
Running scriptlet: kernel-modules-4.18.0-553.36.1.el8_10.x86_64 9/9
Running scriptlet: linux-firmware-999:20210617-999.8.git0f66b74b.el8.noarch 9/9
Verifying : kernel-4.18.0-553.36.1.el8_10.x86_64 1/9
Verifying : kernel-core-4.18.0-553.36.1.el8_10.x86_64 2/9
Verifying : kernel-modules-4.18.0-553.36.1.el8_10.x86_64 3/9
Verifying : linux-firmware-core-999:20241003-999.35.git95bfe086.el8.noarch 4/9
Verifying : kernel-uek-5.15.0-304.171.4.3.el8uek.x86_64 5/9
Verifying : kernel-uek-core-5.15.0-304.171.4.3.el8uek.x86_64 6/9
Verifying : kernel-uek-modules-5.15.0-304.171.4.3.el8uek.x86_64 7/9
Verifying : linux-firmware-999:20241003-999.35.git95bfe086.el8.noarch 8/9
Verifying : linux-firmware-999:20210617-999.8.git0f66b74b.el8.noarch 9/9

Upgraded:
linux-firmware-999:20241003-999.35.git95bfe086.el8.noarch
Installed:
kernel-4.18.0-553.36.1.el8_10.x86_64
kernel-core-4.18.0-553.36.1.el8_10.x86_64
kernel-modules-4.18.0-553.36.1.el8_10.x86_64
kernel-uek-5.15.0-304.171.4.3.el8uek.x86_64
kernel-uek-core-5.15.0-304.171.4.3.el8uek.x86_64
kernel-uek-modules-5.15.0-304.171.4.3.el8uek.x86_64
linux-firmware-core-999:20241003-999.35.git95bfe086.el8.noarch

Complete!

Optional Step: If the OS and other packages have to be updated to latest version of the packages, perform dnf update as follows:

sudo dnf update -y

Additional Doc References:

Oracle Linux UEK7 Kernel Release Notes - https://docs.oracle.com/cd/F10276_01/7/relnotes7.2/UEK-RELNOTES-7-2.pdf

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ORACLE LINUX: How To Upgrade Oracle Linux 8 (OL8) UEK6 Kernel To UEK7 Kernel?

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