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February 25, 2018
Upgrade to the UEK Release 5 Preview on Oracle Cloud Infrastructure
The Unbreakable Enterprise Kernel (UEK), included as part of Oracle Linux, provides the latest open source innovations, optimizations and security for enterprise cloud workloads. The UEK Release 4 Update 6, based on the upstream kernel 4.1, is the current UEK release that powers the production workloads on Oracle Linux 7 or 6 in the cloud or on-premises.
Linux 4.14 is the latest Long-Term Stable (LTS) release of the kernel, and it is the mainline kernel that the UEK Release 5 tracks. You can experiment the UEK Release 5 preview today with Oracle Linux 7 on x86_64 and ARM64.
The example below is using an Oracle Linux 7 x86_64 instance on Oracle Cloud Infrastructure. The kernel was upgraded to the UEK Release 5 preview within a few minutes. The same upgrade procedures apply to an Oracle Linux 7 x86_64 instance running on-premises.
The Oracle Linux 7 instance runs the current UEK Release 4 Update 6 kernel.
[root@honsu-ol74 opc]# uname -a Linux honsu-ol74 4.1.12-112.14.13.el7uek.x86_64 #2 SMP Thu Jan 18 11:38:29 PST 2018 x86_64 x86_64 x86_64 GNU/Linux
Before performing the upgrade, modify the yum repository setting and enable the UEK Release 5 preview channel:
[root@honsu-ol74 opc]# cd /etc/yum.repos.d [root@honsu-ol74 yum.repos.d]# vi public-yum-ol7.repo [ol7_developer_UEKR5] name=Oracle Linux $releasever UEK5 Development Packages ($basearch) baseurl=http://yum.oracle.com/repo/OracleLinux/OL7/developer_UEKR5/$basearch/ gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle gpgcheck=1 enabled=1
Next you run yum upgrade command to perform the upgrade.
[root@honsu-ol74 yum.repos.d]# yum upgrade kernel-uek Loaded plugins: langpacks, ulninfo 11503/11503 Resolving Dependencies --> Running transaction check ---> Package kernel-uek.x86_64 0:4.14.14-11.el7uek will be installed --> Processing Dependency: linux-firmware >= 20180113-60.git65b1c68 for package: kernel-uek-4.14.14-11.el7uek.x86_64 --> Running transaction check ---> Package linux-firmware.noarch 0:20171128-57.git17e62881.0.2.el7 will be updated ---> Package linux-firmware.noarch 0:20180113-60.git65b1c68.el7 will be an update --> Finished Dependency Resolution Dependencies Resolved =========================================================================================================== Package Arch Version Repository Size =========================================================================================================== Installing: kernel-uek x86_64 4.14.14-11.el7uek ol7_developer_UEKR5 52 M Updating for dependencies: linux-firmware noarch 20180113-60.git65b1c68.el7 ol7_developer_UEKR5 56 M Transaction Summary =========================================================================================================== Install 1 Package Upgrade ( 1 Dependent package) Total download size: 107 M Is this ok [y/d/N]: y Downloading packages: (1/2): kernel-uek-4.14.14-11.el7uek.x86_64.rpm | 52 MB 00:00:41 (2/2): linux-firmware-20180113-60.git65b1c68.el7.noarch.rpm | 56 MB 00:00:44 ----------------------------------------------------------------------------------------------------------- Total 2.4 MB/s | 107 MB 00:00:44 Running transaction check Running transaction test Transaction test succeeded Running transaction Updating : linux-firmware-20180113-60.git65b1c68.el7.noarch 1/3 Installing : kernel-uek-4.14.14-11.el7uek.x86_64 2/3 Cleanup : linux-firmware-20171128-57.git17e62881.0.2.el7.noarch 3/3 bash nss-softokn i18n network ifcfg btrfs crypt dm dmraid kernel-modules lvm mdraid qemu qemu-net iscsi resume rootfs-block terminfo udev-rules virtfs biosdevname systemd usrmount -uptrack base fs-lib shutdown bash rescue nss-softokn i18n network ifcfg btrfs crypt dm dmraid kernel-modules lvm mdraid qemu qemu-net iscsi resume rootfs-block terminfo udev-rules virtfs biosdevname systemd usrmount -uptrack base fs-lib shutdown Verifying : kernel-uek-4.14.14-11.el7uek.x86_64 1/3 Verifying : linux-firmware-20180113-60.git65b1c68.el7.noarch 2/3 Verifying : linux-firmware-20171128-57.git17e62881.0.2.el7.noarch 3/3 Installed: kernel-uek.x86_64 0:4.14.14-11.el7uek Dependency Updated: linux-firmware.noarch 0:20180113-60.git65b1c68.el7 Complete!
Now the kernel has been upgraded the UEK Release 5 preview. Reboot the Oracle Linux 7 instance to have the new kernel take effect. When the Oracle Linux 7 instance comes back, you now have the UEK Release 5 preview running.
[root@honsu-ol74 opc]# uname -a Linux honsu-ol74 4.14.14-11.el7uek.x86_64 #2 SMP Tue Feb 13 22:57:19 PST 2018 x86_64 x86_64 x86_64 GNU/Linux
If you have any questions, post them to Oracle Linux Community.
http://yum.oracle.com/repo/OracleLinux/OL7/developer_UEKR5/$basearch/
If you want to browse the content of the UEK Release 5 developer build in the Oracle Linux yum server, use the URL:
http://yum.oracle.com/repo/OracleLinux/OL7/developer_UEKR5/x86_64/index.html