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+ = Installing kernel from Koji
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+
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+ :description: A quick guide on installing a kernel from the Koji repository.
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+
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+ Koji is the build system Fedora developers use to build software for inclusion into Fedora.
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+ If there is a need to install a kernel that is not currently available in the Fedora repositories,
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+ these can be obtained from the Koji repository.
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+
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+ == Check Koji (Fedora build system) for archived builds
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+
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+ Check the https://koji.fedoraproject.org/koji/search?match=glob&type=build&terms=kernel-*[Koji] archive for the historical builds.
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+ It is possible to use different searches or expressions to help narrow down on a specific kernel build.
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+ Once the specific kernel has been identified, there are several ways to download and install it.
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+
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+ == Download using the browser and install
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+
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+ One way is to download the identified packages using the browser and installing them.
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+
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+ Download the following package rpms for a specific kernel version into a directory
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+ (best to create a new directory and just have the downloaded rpms in it.:
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+
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+ ----
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+ kernel-<version>.<release>.<arch>.rpm
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+ kernel-core-<version>.<release>.<arch>.rpm
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+ kernel-modules-<version>.<release>.<arch>.rpm
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+ ----
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+
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+ then, open a command prompt and change to this directory.
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+ Execute the command to install the kernel:
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+
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+ ----
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+ sudo dnf install *
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+ ----
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+
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+ == Download and install a kernel using the koji client
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+
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+ === Install the koji client
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+
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+ The koji client makes the process of installing a specific kernel much easier from the command line.
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+ Use this command to install the client:
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+
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+ $ sudo dnf install koji
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+
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+ === Download and install the kernel
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+
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+ Below is a one-line command that creates a new unique temporary directory,
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+ downloads kernel RPMs to it and installs them.
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+ This assumes we are working with the `x86_64` architecture.
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+
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+ cd $(mktemp -d) \
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+ && koji download-build --arch=x86_64 --arch=noarch kernel-n.nn.nn-nnn.fcnn \
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+ && sudo dnf install *
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+
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+ This eliminates the need to clean up after installation and the risk of installing unwanted rpms accidentally.
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+
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+ The following part of the above command downloads the kernel
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+ and its dependencies for the given architecture and kernel version.
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+
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+ koji download-build --arch=[arch] kernel-<version>.<release>
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+
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+ where [arch] indicates the architecture i.e. `x86_64`
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+
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+ == Additional Steps:
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+
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+ The following additional steps are often useful:
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+
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+ * Set the default boot option - so this boots automatically subsequently
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+
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+ See xref:kernel/booting.adoc[quick-doc on setting a specific kernel to boot by default]
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+
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+ * Add a versionlock to ensure this version is not deleted when kernel updates are installed
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+
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+ See xref:dnf.adoc#sect-using-dnf-plugin[quick-doc on using the dnf versionlock plugin]
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+
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+ [[sect-references]]
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+ == References
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+
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+ . https://fedoramagazine.org/install-kernel-koji/#comment-472889[Fedora Magazine article: How to install a kernel from koji]
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+
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ankursinha commented 2 years ago
Is this heading required? The include has its own heading (and it's about changing the default not just "booting" in general?