Linux Mint is one of the most popular Linux distributions, and for good reasons. It's beginner-friendly, visually appealing, and works out of the box on most systems. But if you’ve been using Linux Mint for a while, you might be curious about its kernel. The kernel is the heart of any Linux operating system, including Linux Mint. It manages hardware, system processes, and everything in between. Understanding which kernel Linux Mint uses is essential if you're troubleshooting, upgrading, or just learning about your system.
In this article, I’ll guide you through what kernel Linux Mint uses, how to check your current kernel, and why it matters. By the end, you’ll know exactly what’s under the hood of your Linux Mint system.
What Kernel Does Linux Mint Use?
The kernel version in Linux Mint depends on the release version you’re using. Linux Mint is based on Ubuntu, which means it inherits Ubuntu’s kernel by default. Typically, Linux Mint uses an LTS (Long-Term Support) kernel for stability and security. The LTS kernels are reliable and receive updates for several years.
For example:
Linux Mint 21 (Vanessa): Uses the 5.15 LTS kernel.
Linux Mint 20 (Ulyana): Uses the 5.4 LTS kernel.
However, if you’re running Linux Mint Debian Edition (LMDE), it uses a different kernel because it's based on Debian, not Ubuntu.
Why Does Linux Mint Use LTS Kernels?
Linux Mint focuses on providing a smooth, stable experience. LTS kernels are preferred because they:
Receive long-term updates and security patches.
Ensure compatibility with most hardware.
Avoid frequent updates that can disrupt users.
You can also manually upgrade your kernel to newer versions for better hardware support or specific features.
How to Check the Kernel Version in Linux Mint
Want to know which kernel your Linux Mint system is currently using? It’s straightforward. There are multiple ways to do this.
1. Using the Terminal
The terminal is the quickest way to check your kernel version. Open a terminal and type:
uname -r
You’ll see output like this:
5.15.0-73-generic
This tells you:
The kernel version (e.g., 5.15).
The patch level (e.g., .0).
Whether it’s a generic or low-latency kernel.
2. Using System Info GUI
If you prefer a graphical interface:
Open the System Info app from the menu.
Look for the kernel version under the System tab.
3. Using Update Manager
The Update Manager also displays your current kernel:
Open Update Manager.
Click on the View > Linux Kernels option.
The active kernel will be highlighted.
Knowing your kernel version helps you decide whether you need an upgrade or if you’re troubleshooting compatibility issues.
How to Upgrade or Downgrade the Kernel in Linux Mint
Linux Mint allows you to change your kernel easily. You might want to upgrade to a newer kernel for better hardware support or downgrade to an older one for stability.
Steps to Upgrade the Kernel
Open Update Manager.
Go to View > Linux Kernels.
You’ll see a list of available kernels, sorted by version.
Select the kernel version you want and click Install.
Things to Consider Before Upgrading:
Backup Your System: A new kernel might cause unexpected issues.
Test Your Hardware: Some older hardware may not work well with newer kernels.
Steps to Downgrade the Kernel
If the new kernel causes problems, you can revert to the old one:
Open Update Manager.
Go to View > Linux Kernels.
Select the older kernel and click Install.
Reboot and choose the older kernel from the GRUB menu.
Linux Mint’s kernel management tools make the process safe and user-friendly.
Why the Kernel Matters in Linux Mint
The kernel is like the bridge between your hardware and software. Choosing the right kernel or keeping it updated is essential for the following reasons:
Hardware Compatibility: Newer kernels add support for modern hardware, including graphics cards, Wi-Fi adapters, and CPUs. For example, if you’ve recently bought a laptop, upgrading to the latest kernel might solve driver issues.
Performance: A well-optimized kernel can improve system performance, especially on newer hardware. Some kernels, like low-latency ones, are designed for specific tasks like audio editing or gaming.
Security: Kernel updates often include patches for vulnerabilities. Running an outdated kernel can expose your system to security risks.
Stability: Linux Mint prioritizes stability, and its default LTS kernels ensure your system doesn’t crash or behave unpredictably.
Understanding your kernel is especially useful if you’re dual-booting, running custom drivers, or diving into advanced Linux tasks.
Frequently Used Kernels in Linux Mint
Linux Mint supports various kernel types depending on your needs:
Generic Kernels: Default for most users; balances performance and compatibility.
Low-Latency Kernels: Ideal for tasks requiring minimal delay, like audio or video production.
Custom Kernels: Rarely used but great for advanced users who need specific configurations.
Here’s a quick comparison:
| Kernel Type | Best For | Example Version |
| Generic Kernel | General use, daily tasks | 5.15.0 |
| Low-Latency Kernel | Audio/video production | 5.15.0-lowlat |
| Custom Kernel | Advanced configurations | User-defined |
Summary
Linux Mint primarily uses LTS kernels like 5.15 or 5.4, depending on the version you’re running. These kernels are chosen for their stability, security, and broad hardware support. Checking your current kernel version is easy using the terminal, System Info, or Update Manager. And if you ever need to upgrade or downgrade, Mint provides simple tools to manage your kernel.
By understanding your kernel, you can ensure your Linux Mint system runs smoothly, handles your hardware efficiently, and stays secure. Whether you’re a casual user or a Linux enthusiast, knowing what kernel Linux Mint uses empowers you to make better decisions for your setup.
FAQs
What is the default kernel in Linux Mint 21?
Linux Mint 21 (Vanessa) uses the 5.15 LTS kernel by default. This kernel provides excellent stability and hardware compatibility.
Can I upgrade to a newer kernel in Linux Mint?
Yes, you can upgrade your kernel using the Update Manager. Navigate to View > Linux Kernels, choose a newer version, and install it.
Is it safe to upgrade the kernel in Linux Mint?
It’s generally safe, but always back up your system before upgrading. Newer kernels can sometimes cause compatibility issues with older hardware.
How do I revert to an older kernel in Linux Mint?
You can downgrade your kernel by installing an older version through the Update Manager and selecting it at boot from the GRUB menu.
Does Linux Mint Debian Edition (LMDE) use a different kernel?
Yes, LMDE uses kernels from Debian instead of Ubuntu. For example, LMDE 5 uses the 5.10 LTS kernel.