Chapter 5 Installation and Availability

You can download a full Oracle Linux 8.3 installation media image from the Oracle Software Delivery Cloud at Note that a smaller boot ISO is also available to perform a network-based installation.

For convenience, the three most recent Oracle Linux installation media images, for each release, are also available from the Oracle Linux yum server at

You can also install a full Oracle Linux 8.3 media image for the x86_64 platform on a compute instance on Oracle Cloud Infrastructure. To access the image, you must first obtain an Oracle Cloud Infrastructure account. For more information, visit

The latest Oracle Linux 8.3 packages are also available on ULN and the Oracle Linux yum server.

To obtain the latest packages from ULN and install additional software for Oracle Linux 8.3, subscribe to the different channels on ULN by logging in to and then select the View Channels option.

To install additional software for Oracle Linux 8.3 from the Oracle Linux yum server, enable the required repositories within your yum configuration. To view the Oracle Linux yum repositories that are available for Oracle Linux 8.3, visit


The Oracle Linux yum server does not provide equivalent repositories for some of the channels that are available on ULN. These channels provide non-open source packages.

Oracle also makes the Oracle Linux 8.3 release available at . See Chapter 6, Release-Specific Information for Oracle Linux 8.3 (aarch64) for more information.

For developers who are making use of the Raspberry Pi hardware platform, Oracle provides an unsupported developer release image that includes the firmware that is required to boot this platform. You can download the image from

5.1 Upgrading From Oracle Linux 7

It is possible to upgrade an Oracle Linux 7 system to Oracle Linux 8.3 or later by using the leapp utility. For step-by-step instructions, as well as information about any known issues that you might encounter when upgrading your system, see Oracle® Linux 8: Performing System Upgrades With Leapp.

5.2 Installing Oracle-Supported RDMA Packages

Oracle Linux 8.3 ships with UEK R6 as the default kernel.

Oracle also provides Remote Direct Memory Access (RDMA) packages for use with UEK R6. The RDMA feature enables direct memory access between two systems that are connected by a network. RDMA facilitates high-throughput and low-latency networking in clusters.

To use RDMA features, you must first install the Oracle-supported RDMA packages. To do so, ensure that your system is subscribed to the appropriate channels on ULN or that you have enabled the appropriate repositories on the Oracle Linux yum server.

If you are subscribed to ULN, enable the ol8_x86_64_UEKR6, ol8_x86_64_baseos_latest, and ol8_x86_64_UEKR6_RDMA channels. Note that if your system is newly registered on ULN, it is already subscribed to the ol8_x86_64_UEKR6, ol8_x86_64_baseos_latest, and ol8_x86_64_appstream channels by default. However, you must explicitly subscribe to the ol8_x86_64_UEKR6_RDMA channel prior to installing RDMA packages.

If you are using the Oracle Linux yum server, enable the ol8_UEKR6, ol8_baseos_latest, ol8_appstream, and ol8_UEKR6_RDMA repositories. Note that if your system already uses the Oracle Linux yum server, the ol8_UEKR6, ol8_baseos_latest, and ol8_appstream repositories are enabled by default. However, you must explicitly enable the ol8_UEKR6_RDMA repository prior to installing RDMA packages.

For information about a known issue that pertains to installing Oracle-supported RDMA packages, see Section 4.1.7, “Version of libpcap packages in BaseOS channel does not support RDMA”.

For additional information about RDMA, including any known issues, see the Unbreakable Enterprise Kernel: Release Notes for Unbreakable Enterprise Kernel Release 6.