How to Check and Update Kernel Version in Linux

Linux is a flexible and strong operating system. It gets its strength from the kernel, the main part that takes care of hardware, software communication, and gives a solid base for user tasks. It’s important to know your kernel version and keep it updated for a safe and smooth Linux system. This article talks about how to find your kernel version and gives three ways to update it on Ubuntu server.

If you’re a beginner or know Linux well, this guide helps you understand kernel versions and updates. Let’s begin by learning how to find your kernel version and why it’s important.

What’s the Kernel?

When you’re using your Linux system, don’t forget about the important kernel at its center. Picture the kernel as the leader of a team, making sure hardware, software, and your commands all work together. It’s the first defense against problems, the helper that lets apps talk to hardware, and the keeper of computer power. Without the kernel, your computer would be just parts, missing the teamwork that makes it run.

How to Check the Current Kernel Version?

Method 1: Using the Terminal

The terminal is the command-line gateway to your system’s inner workings. By following a few simple steps, you can unveil your current kernel version:

• Open a Terminal Window:

Launch your terminal emulator. You can do this by pressing Ctrl + Alt + T simultaneously or by searching for “Terminal” in your applications menu.

In the terminal, type the following command and press Enter:

uname -r

This command queries the system for the kernel release information.

• Interpret the Output:

The output will display your current kernel version. It might look something like “5.10.15-1ubuntu1.” The numbers and characters following “5.10.15” represent the major, minor, and patch versions of your kernel.

Method 2: Checking System Information

For those who prefer graphical interfaces, Linux provides an intuitive way to access system details:

• Open System Settings

Depending on your desktop environment, the process may vary slightly. Generally, you can find “System Settings” or “Settings” in your applications menu.

• Navigate to System Information

Look for an option labeled “System,” “About,” or “System Information.” Clicking on this option will display various system-related details.

• Find Kernel Version

Within the system information window, you should find an entry related to your kernel version. It might be labeled as “Kernel Version” or something similar.

Method 3: Using System Logs

System logs document various events and activities on your Linux system, including kernel-related information:

• Open a Terminal Window:

Launch the terminal using the same methods as described in Method 1.

• Access Kernel Logs

cat /var/log/syslog | grep "Linux version"

Type the following command and press Enter:

This command filters the system logs for entries containing the kernel version information.

• Review Output

The terminal will display lines containing the kernel version information, typically in a format like “Linux version 5.10.15-1ubuntu1.”

Methods to Update the Ubuntu Kernel

Method 1: Using Update Manager

Update Manager is easy to use for keeping your system, including the kernel, up-to-date:

• Open Update Manager

Find the Update Manager in your apps menu or system settings, maybe called “Software Updater.”

• Check for Updates

In the Update Manager, click “Check for Updates.” It will look for updates, including the kernel.

• Install Kernel Updates

If a kernel update is there, you’ll see it. Tick the box next to it and click “Install Updates.” Follow the steps to finish.

Method 2: Terminal Commands

For command-line fans, use these steps to update the kernel:

• Open Terminal

Start the terminal like before.

Run this to get the latest package info:

sudo apt update

• Upgrade Everything

Update all packages, including the kernel:

sudo apt upgrade

Method 3: Ubuntu Mainline Kernel Installer

For newer kernels, use this method:

• Search “Ubuntu Mainline Kernel Installer” online, get the version for your Ubuntu.
• Follow the instructions to install the Mainline Kernel Installer.
• Open the installer, pick a kernel version from the list. It downloads and installs.
• Mainline kernels might not be super stable. They have cool stuff but could cause issues. Try them on a test system first.

Pick a method that suits you to update your Ubuntu kernel. Whether you like a simple screen, commands, or want the latest features, these methods work. Just remember, think about the good and bad, so your system stays safe, steady, and fast after the update.

Conclusion

In the world of Linux vps, the kernel is like the conductor of an orchestra, quietly directing your operating system’s performance. Knowing and handling your kernel version is important. This trip through kernel versions, checking, and updating methods has given you the skills to handle this key part of Linux. By understanding the versioning scheme, you can now understand the meaning behind those odd numbers. With this info, you can choose the right version for you – whether you want stability, new features, or long-term support. You can also read about How to setup Teamspeak server on linux.