GNU/Linux Fedora 42 Installing Dkms without Internet Guide
How to Install DKMS without Internet Connection on Fedora 42 GNU/Linux – Step by step Tutorial.
Most noteworthy: to achieve this Setup you simply need any Online Computer with a Browser and a USB Stick to Copy the downloaded Packages.
But if you dispose of an Android Mobile Phone with Internet Acces, then an Easier Solution should be of using it! See: Internet Connection USB Tethering Guide.
And the Dynamic Kernel Module Support for Fedora 42 is a Program/Framework that enables generating Linux Kernel Modules whose Sources generally reside Outside the Kernel Source Tree.
DKMS automatically rebuilds Kernel Modules after updates, ensuring driver compatibility without manual intervention.

1. Downloading Kernel Devel
So Download the Right Kernel Debug Devel Package
First, find out the Kernel Version with:uname-r
Take Note of the Digits prior to “fc42” to searching for the kernel-devel Package!
Download kernel-debug-devel & kernel-headers for Fedora 42 GNU/Linux
Get kernel-debug-devel & kernel-headers .rpm PackageFirst, see in the Actual Fedora 42 Repo.
Or else try on fedora.pkgs.org.
But in case you do not find an available version the first look: How to Install New Kernel offline.
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