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The Linux kernel is the core component of the Ubuntu operating system, managing hardware resources such as I/O, memory, and CPU1. Ubuntu releases come with different kernel versions, which are updated regularly to provide new features, security patches, and hardware support.
Identifying Your Kernel Version
To determine the kernel version you are running, you can use the following command in the terminal:
cat /proc/version_signatureThis command will output information about the kernel version, such as:
Ubuntu 5.4.0-12.15-generic 5.4.8In this example, 5.4.0-12.15-generic is the Ubuntu kernel release, and 5.4.8 is the mainline kernel version1.
Kernel Versions in Ubuntu Releases
Ubuntu releases are categorized into Long-Term Support (LTS) and interim releases. LTS releases are supported for five years, while interim releases are supported for nine months2. Here are some examples of kernel versions in recent Ubuntu releases:
Ubuntu kernel lifecycle and enablement stack
Canonical provides long-term support (LTS) kernels for Ubuntu LTS releases. Canonical also provides interim operating system releases with updated kernels every 6 months. Learn about the lifecycle of each kernel through the lifespan of support.
See results only from ubuntu.comRelease Cycle
Overview of the Ubuntu release cycle - maintenance, support and security …
Focal Fossa
As with every Ubuntu release, Ubuntu 20.04 LTS comes with a selection of the …
Kernels covered by Livepatch
There will be Livepatch support for HWE kernels across a limited combination of …
Ubuntu Wiki
All Ubuntu Desktop 20.04 LTS will ship with an updated kernel by default. Also …
Ubuntu kernels from Cano…
Canonical provides long-term support (LTS) kernels for Ubuntu LTS releases. …
Ubuntu version history - Wikipedia
Ubuntu 4.10 (Warty Warthog), released on 20 October 2004, is Canonical's first release of Ubuntu, building upon Debian, with plans for a new release every six months and eighteen months of support thereafter. It used the ext3 file system. Support ended on 30 April 2006. Ubuntu 4.10 was offered as a free download and, through Canonical's ShipIt service, was also mailed to users free of char…
Wikipedia · Text under CC-BY-SA license- Estimated Reading Time: 6 mins
Ubuntu kernels from Canonical
Canonical provides long-term support (LTS) kernels for Ubuntu LTS releases. Canonical also provides interim operating system releases with updated kernels every 6 months.
Ubuntu release cycle | Ubuntu
Overview of the Ubuntu release cycle - maintenance, support and security coverage, lifetime, upgrade paths, kernel versions and the range of editions and images published by Canonical.
List of Ubuntu Versions with Corresponding Linux …
Aug 28, 2014 · Is there a list of Ubuntu versions with default corresponding Linux kernel versions somewhere? I would specifically like to know the most recent …
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How to List Installed Kernels in Ubuntu
Nov 17, 2022 · To list the currently available, use the apt command like this: You don't even have to be a sudoer to list the installed kernels. The apt list --installed lists all the packages installed by the apt commands. You then use the grep …
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FocalFossa/ReleaseNotes - Ubuntu Wiki
Mar 21, 2023 · As with every Ubuntu release, Ubuntu 20.04 LTS comes with a selection of the latest and greatest software developed by the free software community. Linux Kernel. Ubuntu …
Kernel/LTSEnablementStack - Ubuntu Wiki
All Ubuntu Desktop 20.04 LTS will ship with an updated kernel by default. Also Ubuntu Desktop certified hardware may use OEM kernel flavour, where required. Server installations will …
How To Check All Available Kernel Version In Linux
Aug 12, 2023 · How to list all Linux kernels in Ubuntu and how to check all available kernel version in Linux. You can check last kernel update in Linux and check previous kernel version in Linux using terminal. Let us learn how:
3 Ways to Check Linux Kernel Version in Command …
Sep 12, 2023 · Wondering which Linux kernel version your system uses? Here are several ways to check your kernel version in the Linux terminal.
How to upgrade kernel version in Ubuntu 20.04 | FlamingBytes
Apr 20, 2024 · Check the current installed kernel version; 2. Check the repository connected to the server; 3. Check the kernel version provided by the repository; 4. Install the target kernel …
How to determine the “latest” kernel version for Ubuntu 20.04?
Nov 24, 2021 · The default for Ubuntu Server is to use the GA kernel stack (5.4 for 20.04); but that default can be changed during the installation process; and any time after that. You can have …
Installing the Latest Kernel on Ubuntu 20.04 - LinuxPatch
How to Install the Latest Kernel. Check Your Current Kernel Version uname -r; Update Your Package List sudo apt update && sudo apt upgrade; Install the Latest Kernel sudo add-apt …
Ubuntu 20.04 LTS Is Now Powered by Linux Kernel 5.15 LTS
Aug 2, 2022 · In a very interesting move, Canonical quietly updated its long-term supported Ubuntu 20.04 LTS (Focal Fossa) operating system series to the Linux 5.15 LTS kernel from …
Kernels covered by Livepatch - Ubuntu
There will be Livepatch support for HWE kernels across a limited combination of kernel flavour (variants), kernel version, and Ubuntu release as detailed above. See this page to better …
Which is the stable ubuntu 20.04 kernel for laptops?
Nov 29, 2020 · The 5.4 is the current kernel for Ubuntu 20.04. The 5.6.0-1034-oem is a kernel for oem devices. If it works for you, then use it. Soon there will be the 5.8 HWE kernel that should …
Latest kernel version for 20.04 LTS - Ubuntu Forums
Jun 8, 2022 · How can I find what is the latest version of kernel for Ubuntu 20.04 LTS? You can check at https://packages.ubuntu.com/. Look for package linux-image-generic for the GA …
Ubuntu 20.04.4 LTS Released with Linux Kernel 5.13 and Mesa …
Feb 24, 2022 · Ubuntu 20.04.4 LTS is now available for download powered by the Linux 5.13 kernel and Mesa 21.2 graphics stack from Ubuntu 21.10.
Ubuntu kernel 5.4: What’s new with Ubuntu 20.04 LTS
Ubuntu 20.04 LTS has just arrived. The latest LTS comes with a new version of the Linux kernel – 5.4 – which brings a lot of exciting new features, faster boot times, enhanced performance and …
How to Tell Version of any Ubuntu Linux using Terminal
Mar 22, 2025 · Lessons Learned: Common Version-Related Pitfalls. Throughout my decade of managing Ubuntu systems, I’ve encountered several common mistakes: Assuming package …
Expected kernel versions included with server distributions
May 5, 2022 · When Ubuntu 20.04.5 LTS is released, if using the HWE kernel stack, you'll be using the 5.15 kernel stack from Ubuntu 22.04 LTS (GA kernel). Ubuntu Server media lets you …
Ubuntu 7408-2: Important security updates for the Linux kernel
5 days ago · A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - …
Version 570.124.06 (Linux)/572.61 (Windows) - NVIDIA …
Feb 28, 2025 · For a complete list of distributions, kernel versions supported, ... 1/2/4/8/16-GPU configurations with Ubuntu 20.04.6 LTS. API Support. This release supports the following …
Unable to start Ubuntu 20.04 through wsl #12788 - GitHub
Kernel Version. 6.6.5.1-1. Distro Version. Ubuntu20.04. Other Software. No response. Repro Steps. wsl --install Ubuntu-20.04. wsl.exe -d Ubuntu 20.04 LTS. Expected Behavior. …
USN-7408-2: Linux kernel (FIPS) vulnerabilities - Ubuntu
5 days ago · Ubuntu 20.04 LTS; Packages. linux-fips - Linux kernel with FIPS; Details. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to …
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