How to Build Linux Kernel on Rocky Linux 9 – Step by step

GNU/Linux Rocky 9 Build and Install Kernel from Source Code Guide

How to Download, Build and Install a Custom New Vanilla Kernel from Source Code on Rocky 9 GNU/Linux desktop/server.

Especially relevant: this Rocky Linux 9 Kernel Setup make use of the Official Linux Kernel Source Code.

After a Kernel Upgrade, it is Strongly Recommended to Immediately Proceed with a Firmware Update to Ensure Hardware Compatibility and Optimal Performance. Follow this Guide: How to Update Linux Firmware on GNU/Linux Distros.

Again this tutorial make it the Easy Way and so is intended especially for Beginners.

Important to know how this Setup does Not change your existing System and so in any case you will be able to startup with the current Kernel from the GRUB Splash Screen.

For further advanced Kernel Configuration instructions you may see the Linux Kernel Documentation.

Finally, for a Non Bootable System before see: How to chroot on Rocky GNU/Linux Tutorial.

1. 1. Installing Dependencies

   Open a Terminal Shell emulator window
   (Press “Enter” to Execute Commands)

   
   Or Login into Server Shell.
   First, Upgrade your System:

   sudo dnf upgrade --refresh

   And Reboot:

   sudo reboot

   Then play:

   sudo yum group install "Development Tools"

   Enable Code Ready Builder Repo for Rocky GNU/Linux

   Adding CRB Repo for Rocky

   CRB Repository for Rocky
   And again:

   sudo dnf install openssl openssl-devel dwarves rpm-build libelf-devel elfutils-libelf-devel ncurses

   Authenticate with the User Admin Pass.
   If Got “User is Not in Sudoers file” then see: How to Enable sudo.

2. 2. Making Target Directory

   Now make the Target Folder
   With:

   mkdir ~/kernel