Step-by-step – Build Kernel CentOS 9 Guide

GNU/Linux CentOS 9 Build Kernel from Source Code Guide

Hi! The Tutorial shows you Step-by-step How to Download, Build and Install a Custom New Vanilla Kernel from Source Code on CentOS Stream 9 GNU/Linux Desktop/Server.

Especially relevant: this CentOS Stream 9 Kernel Setup make use of the original Linux Kernel Source Code.

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 CentOS 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

   And Reboot:

   sudo reboot

   Then play:

   sudo yum group install "Development Tools"

   Enable Code Ready Builder Repo for CentOS GNU/Linux

   Adding CRB Repo for CentOS

   CRB Repository for CentOS
   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