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How To Install Kernel 5.16 on Ubuntu 21.10: Dependency Issues and Solutions

Ubuntu 5

As system administrators and Linux enthusiasts, we often find ourselves needing to install a newer kernel version on our systems. This article is a step-by-step guide on how to install Kernel 5.16 on Ubuntu 21.10, also known as Impish Indri. We will also address some common dependency issues and provide solutions to them.

Quick Answer

To install Kernel 5.16 on Ubuntu 21.10, you will need to manually install the libssl3 package from the Ubuntu 22.04 repositories. Once you have resolved the dependency issue, you can download and install Kernel 5.16 from the Ubuntu Mainline Kernel PPA.

Prerequisites

Before we start, ensure that you have a working Ubuntu 21.10 system and have sudo privileges. You will need an active internet connection to download the necessary packages.

Understanding the Dependency Issue

The primary dependency issue when installing Kernel 5.16 on Ubuntu 21.10 is the libssl3 package. This package is not available in the Ubuntu 21.10 repositories, but it is required for Kernel 5.16.

The solution is to manually install the libssl3 package from the Ubuntu 22.04 Jammy Jellyfish repositories.

Installing libssl3 from Ubuntu 22.04 Repositories

We’ll start by updating our system packages:

sudo apt update

This command updates the list of available packages and their versions but does not install or upgrade any packages.

Next, we’ll install the libc6 and debconf packages:

sudo apt install libc6 debconf

The libc6 package contains the standard C libraries, and debconf is a package configuration system.

Next, we download the libssl3 package:

wget http://mirrors.kernel.org/ubuntu/pool/main/o/openssl/libssl3_3.0.1-0ubuntu1_amd64.deb

The wget command is a free utility for non-interactive download of files from the web.

Then we install the libssl3 package:

sudo dpkg -i libssl3_3.0.1-0ubuntu1_amd64.deb

The dpkg -i command is used to install a Debian software package.

Finally, we resolve any dependencies:

sudo apt -f install

The -f option with apt install tries to correct a system with broken dependencies in place.

Downloading and Installing Kernel 5.16

Now that we have resolved the dependency issue, we can proceed to download and install Kernel 5.16. We will download the necessary packages from the Ubuntu Mainline Kernel PPA.

wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.16/amd64/linux-headers-5.16.0-051600_5.16.0-051600.202201092355_all.deb
wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.16/amd64/linux-headers-5.16.0-051600-generic_5.16.0-051600.202201092355_amd64.deb
wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.16/amd64/linux-image-unsigned-5.16.0-051600-generic_5.16.0-051600.202201092355_amd64.deb
wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.16/amd64/linux-modules-5.16.0-051600-generic_5.16.0-051600.202201092355_amd64.deb

Then we install the downloaded kernel packages:

sudo dpkg -i linux*.deb

This command installs all the downloaded .deb files.

Finally, we resolve any dependencies:

sudo apt -f install

Conclusion

You should now have Kernel 5.16 installed on your Ubuntu 21.10 Impish Indri system. Remember to exercise caution when installing and using mainline kernels, as they may not have undergone extensive testing with your specific Ubuntu release.

If you encounter any issues during the installation, feel free to ask for help in the comments section. Happy Linux-ing!

Can I install Kernel 5.16 on other Ubuntu versions?

This guide is specifically for Ubuntu 21.10. While the process may be similar for other versions, it is recommended to consult the official documentation or specific guides for your Ubuntu version.

Can I revert back to the previous kernel version after installing Kernel 5.16?

Yes, you can revert back to the previous kernel version if needed. During the boot process, you can select the desired kernel version from the GRUB menu. If you want to remove Kernel 5.16 completely, you can use the apt remove command to uninstall the kernel packages.

Will installing a mainline kernel affect my system stability?

Mainline kernels are not officially supported by Ubuntu and may not have undergone extensive testing with your specific Ubuntu release. It is possible that installing a mainline kernel can introduce stability issues or compatibility problems. It is recommended to have a backup or be prepared to troubleshoot any issues that may arise.

How can I check the currently installed kernel version?

You can check the currently installed kernel version by running the command uname -r in the terminal. This will display the kernel version in use.

Is it necessary to install the `libssl3` package manually?

Yes, the libssl3 package is not available in the Ubuntu 21.10 repositories, but it is required for Kernel 5.16. Therefore, it needs to be installed manually from the Ubuntu 22.04 repositories.

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