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How to Update Kernel on RHEL 9 – Step by step

October 27, 2025 | By the+gnu+linux+evangelist.

Updating Kernel from Repo

  1. 2. Updating the System

    First, try to Update your RHEL System with:

    sudo dnf update

    Or for a more complete refresh that removes backward compatibility packages, use:

    sudo dnf upgrade --refresh

    If the result isn’t what you expect, proceed to the next step.

    Finally, if a New Kernel has been installed, reboot with:

    sudo reboot

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