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Announcing Oracle Linux 9 general availability

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Red Hat

Oracle is pleased to announce Oracle Linux 9 general availability for Intel-64/AMD-64 (x86_64) and Arm (aarch64). This release includes the Unbreakable Enterprise Kernel Release 7 (UEK R7), also generally available today, along with the Red Hat Compatible Kernel (RHCK).

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By Bobby Borisov

  • Oracle Linux 9 Is Here with Unbreakable Enterprise Kernel Release 7

    Oracle announced the general availability of its enterprise OS, Oracle Linux 9, for x86_64 and aarch64 architectures.

    Oracle Linux is a high-performance and secure operating system for application development and deployment. It is the second one of the “big three” RHEL-based forks (AlmaLinux, Rocky Linux, and Oracle Linux) that is releasing a stable version of the recently released Red Hat Enterprise Linux 9.

    As we announced earlier, AlmaLinux 9 was the first to be announced, and Oracle Linux 9 has now jumped on the bandwagon.

Oracle Linux 9 released, with some interesting additions

  • Oracle Linux 9 released, with some interesting additions • The Register

    Oracle Linux 9 is out and has some interesting differences from the other Red Hat relatives.

    The version was released at the end of June, marking an unusually long gap from Red Hat's announcement of RHEL 9 the month before. For comparison, the beta of AlmaLinux 9 came just three days after RHEL 9's official availability on May 17, and the final version followed within a week.

    A similar delay seems to be affecting Rocky Linux as well. Nearly a month after Red Hat's announcement of RHEL 9, the Rocky Linux team tweeted that Rocky 9 was coming soon.

    Oracle's release notes reveal an interesting change. Under the heading "Package Changes from the Upstream Release", the second item in the list is btrfs-progs. Given that Red Hat explicitly no longer supports Btrfs in RHEL, this is unexpected.

    Oracle supplies a choice of kernels with Oracle Linux, along with documentation on how to switch between them. One is called the "Red Hat Compatibility Kernel" (RHCK) and the other the Unbreakable Enterprise Kernel (UEK), which is Oracle's modified build of the kernel. If you need strict RHEL compatibility – the target that AlmaLinux and Rocky Linux provide – then RHCK is identical to the kernel in RHEL, just as CentOS Linux used to be. UEK is something different and, among other things, includes Btrfs support.

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