In this article we will talk how to Compile and install Linux Kernel 5.16.9. Compiling a custom kernel has its advantages and disadvantages. However, new Linux users/administrators find it difficult to compile the Linux kernel. To compile the kernel, you need to understand a few things and enter some commands. This step by step guide describes how to Compile Linux kernel version 5.16.9 on Ubuntu or Debian Linux. The following instructions have been successfully tested on RHELCentOS 7/8 (and clones), Debian Linux, Ubuntu Linux and Fedora Linux 31/32.
The kernel is the most important component of any operating system because it manages system resources and processes and facilitates communication between hardware and software. The Linux kernel has grown in popularity over the years and is now part of most desktops mobile operating systems. A new Linux kernel version is released after a few months with bug fixes and important updates. Below are the steps to compile and install Linux Kernel 5.16.9.
How to Compile and install Linux Kernel 5.16.9
The procedure to build (compile) and install the latest Linux kernel from source is as follows:
- Get the latest kernel from kernel.org
- Check the kernel
- Col. Darball Und
- Copy the existing Linux kernel configuration file
- Compile and build the Linux kernel 5.16.9
- Install the Linux kernel and modules (drivers).
- Update the Grub configuration
- Restart the computer
Let’s go through all the steps in detail.
Get the latest Linux kernel source code
Visit the official project site and download the latest source code. Click on the big yellow one button It reads “latest stable kernel”: the file name will be linux-xyztar.xz, where xyz is the actual Linux kernel version number. For example, the file linux-5.16.9.tar.xz represents Linux kernel version 5.16.9. Use the wget command to download the Linux kernel source code:
Extract the tar.xz file
You don’t actually need to extract the source code into /usr/src. You can extract the source code in your $HOME directory or any other directory using the following unzx command or xz command:
$ unxz -v linux-5.16.9.tar.xz
$ xz -d -v linux-5.16.9.tar.xz
Check Linux kernel dartball with pgp
First get the PGP signature for linux-5.16.9.tar:
Try checking it:
$ gpg –verify linux-5.16.9.tar.sign
Sample Outputs: Capture public key from PGP keyserver to verify signature i.e. RSA Key ID 79BE3E4300411886 (from above outputs):
$ gpg –recv-keys 79BE3E4300411886
Sample outputs: Now check the gpg key again with the gpg command:
$ gpg –verify linux-5.16.9.tar.sign
Sample outputs: If you don’t get “BAD signature” output from the “gpg -verify” command, unzip/extract the Linux kernel tarball using the tar command and enter:
$ tar xvf linux-5.16.9.tar
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