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float:right; font-size: 0.9em; width:40%; background:#F1F1ED; margin: 0 0 1em 1em; &quot;"><tbody><tr> <td style="&quot; padding:0.5em; &quot;"><p class="line891"><div class="table-of-contents"><p class="table-of-contents-heading">Contents<ol><li> <a href="#LTS_Enablement_Stacks">LTS Enablement Stacks</a><ol><li> <a href="#Ubuntu_20.04_LTS_-_Focal_Fossa">Ubuntu 20.04 LTS - Focal Fossa</a><ol><li> <a href="#Desktop">Desktop</a></li><li> <a href="#Server">Server</a></li></ol></li><li> <a href="#Ubuntu_18.04_LTS_-_Bionic_Beaver">Ubuntu 18.04 LTS - Bionic Beaver</a><ol><li> <a href="#Desktop-1">Desktop</a></li><li> <a href="#Server-1">Server</a></li></ol></li><li> <a href="#Ubuntu_16.04_LTS_-_Xenial_Xerus">Ubuntu 16.04 LTS - Xenial Xerus</a><ol><li> <a href="#Desktop-2">Desktop</a></li><li> <a href="#Server-2">Server</a></li></ol></li><li> <a href="#Ubuntu_14.04_LTS_-_Trusty_Tahr">Ubuntu 14.04 LTS - Trusty Tahr</a><ol><li> <a href="#Desktop-3">Desktop</a></li><li> <a href="#Multiarch_Desktop">Multiarch Desktop</a></li><li> <a href="#Server-3">Server</a></li></ol></li><li> <a href="#Ubuntu_12.04_LTS_-_Precise_Pangolin">Ubuntu 12.04 LTS - Precise Pangolin</a><ol><li> <a href="#Desktop-4">Desktop</a></li><li> <a href="#Server-4">Server</a></li></ol></li><li> <a href="#Check_your_support_status">Check your support status</a></li><li> <a href="#Ubuntu_12.04_LTS_Extended_Security_Maintenance">Ubuntu 12.04 LTS Extended Security Maintenance</a></li></ol></li></ol></li></ol></div></td> </tr> </tbody></table></div><span class="anchor" id="line-2"></span><span class="anchor" id="line-3"></span><p class="line867"> <h2 id="LTS_Enablement_Stacks">LTS Enablement Stacks</h2> <span class="anchor" id="line-4"></span><span class="anchor" id="line-5"></span><p class="line867"><strong>The latest information on the <a class="https" href="https://ubuntu.com/about/release-cycle">Ubuntu Lifecycle and Release Cadence</a>.</strong> <span class="anchor" id="line-6"></span><span class="anchor" id="line-7"></span><p class="line874">The Ubuntu LTS enablement (also called HWE or Hardware Enablement) stacks provide newer kernel and X support for existing Ubuntu LTS releases. These enablement stacks can be installed manually but are also available when installing with Ubuntu LTS point release media. These newer enablement stacks are meant for desktop and server and even recommended for cloud or virtual images. However, if one wants to remain on the original GA (General Availability) stacks, the options are: <span class="anchor" id="line-8"></span><span class="anchor" id="line-9"></span><ul><li><p class="line862">Install from a previous 12.04.0/12.04.1/14.04.0/14.04.1/16.04.0/16.04.1/18.04.0/18.04.1 point release and update. Previous releases are archived at <a class="http" href="http://old-releases.ubuntu.com/">http://old-releases.ubuntu.com/</a> <span class="anchor" id="line-10"></span></li><li>Perform an update or upgrade to an LTS release from a previous release. <span class="anchor" id="line-11"></span></li><li><p class="line862">Perform a network install using the netboot images rather than the new <<strong>release</strong>>-netboot images. <span class="anchor" id="line-12"></span><span class="anchor" id="line-13"></span></li></ul><p class="line867"> <h3 id="Ubuntu_20.04_LTS_-_Focal_Fossa">Ubuntu 20.04 LTS - Focal Fossa</h3> <span class="anchor" id="line-14"></span><span class="anchor" id="line-15"></span><p class="line874">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. <span class="anchor" id="line-16"></span>Server installations will default to the GA kernel and provide the enablement kernel as optional. <span class="anchor" id="line-17"></span><span class="anchor" id="line-18"></span><p class="line862">The 20.04 LTS HWE Stacks continue to follow <a class="https" href="https://ubuntu.com/about/release-cycle#ubuntu-kernel-release-cycle">Rolling Update Model</a>, as has been in use since 16.04 LTS. <span class="anchor" id="line-19"></span><span class="anchor" id="line-20"></span><p class="line867"> <h4 id="Desktop">Desktop</h4> <span class="anchor" id="line-21"></span><span class="anchor" id="line-22"></span><p class="line874">It is advised to keep Ubuntu Desktop 20.04 LTS with the kernel flavour picked during installation. It can be either HWE or OEM flavour. Changing to track GA kernel may result in regressions of performance, hardware support, and certified features. <span class="anchor" id="line-23"></span><span class="anchor" id="line-24"></span><p class="line874">To check if you are on a certified hardware platform execute: <span class="anchor" id="line-25"></span><span class="anchor" id="line-26"></span><p class="line867"><tt> ubuntu-drivers list-oem </tt> <span class="anchor" id="line-27"></span><span class="anchor" id="line-28"></span><p class="line874">If any meta packages are listed, please refrain from manually changing the kernel flavours. <span class="anchor" id="line-29"></span><span class="anchor" id="line-30"></span><p class="line874">To downgrade from HWE/OEM to GA kernel: <span class="anchor" id="line-31"></span><span class="anchor" id="line-32"></span><p class="line867"><tt> sudo apt install --install-recommends linux-generic </tt> <span class="anchor" id="line-33"></span><span class="anchor" id="line-34"></span><p class="line874">If NVIDIA drivers are required check appropriate level and install them: <span class="anchor" id="line-35"></span><span class="anchor" id="line-36"></span><p class="line867"><tt> ubuntu-drivers list </tt> <span class="anchor" id="line-37"></span><span class="anchor" id="line-38"></span><p class="line874">And then install appropriate NNN version of the drivers: <span class="anchor" id="line-39"></span><span class="anchor" id="line-40"></span><p class="line867"><tt> sudo apt install --install-recommends linux-modules-nvidia-NNN-generic </tt> <span class="anchor" id="line-41"></span><span class="anchor" id="line-42"></span><p class="line874">Reboot, interrupt grub, in advanced options elect to boot 5.4 based kernel, complete boot. Check that everything works as expected. <span class="anchor" id="line-43"></span><span class="anchor" id="line-44"></span><p class="line874">If everything is good, you may remove the other kernel flavours: <span class="anchor" id="line-45"></span><span class="anchor" id="line-46"></span><p class="line867"><tt> sudo apt remove --purge linux-generic-hwe-20.04 linux-oem-20.04 linux-hwe-* linux-oem-* linux-modules-5.1* linux-modules-5.8.0-* linux-modules-5.6.0-* </tt> <span class="anchor" id="line-47"></span><span class="anchor" id="line-48"></span><p class="line867"> <h4 id="Server">Server</h4> <span class="anchor" id="line-49"></span><span class="anchor" id="line-50"></span><p class="line874">Installing the HWE stack is simple: <span class="anchor" id="line-51"></span><span class="anchor" id="line-52"></span><p class="line867"><tt> sudo apt install --install-recommends linux-generic-hwe-20.04 </tt> <span class="anchor" id="line-53"></span><span class="anchor" id="line-54"></span><span class="anchor" id="line-55"></span><p class="line867"> <h3 id="Ubuntu_18.04_LTS_-_Bionic_Beaver">Ubuntu 18.04 LTS - Bionic Beaver</h3> <span class="anchor" id="line-56"></span><span class="anchor" id="line-57"></span><p class="line874">The 18.04.2 and newer point releases will ship with an updated kernel and X stack by default for the desktop. Server installations will default to the GA kernel and provide the enablement kernel as optional. <span class="anchor" id="line-58"></span><span class="anchor" id="line-59"></span><p class="line862">The 18.04 HWE Stacks continue to follow <a class="https" href="https://ubuntu.com/about/release-cycle#ubuntu-kernel-release-cycle">Rolling Update Model</a>, as has been in use since 16.04 LTS. <span class="anchor" id="line-60"></span><span class="anchor" id="line-61"></span><span class="anchor" id="line-62"></span><p class="line874">Installing the HWE stack is simple: <span class="anchor" id="line-63"></span><span class="anchor" id="line-64"></span><p class="line867"> <h4 id="Desktop-1">Desktop</h4> <span class="anchor" id="line-65"></span><span class="anchor" id="line-66"></span><p class="line867"><tt> sudo apt-get install --install-recommends linux-generic-hwe-18.04 xserver-xorg-hwe-18.04 </tt> <span class="anchor" id="line-67"></span><span class="anchor" id="line-68"></span><p class="line867"> <h4 id="Server-1">Server</h4> <span class="anchor" id="line-69"></span><span class="anchor" id="line-70"></span><p class="line867"><tt> sudo apt-get install --install-recommends linux-generic-hwe-18.04 </tt> <span class="anchor" id="line-71"></span><span class="anchor" id="line-72"></span><p class="line867"> <h3 id="Ubuntu_16.04_LTS_-_Xenial_Xerus">Ubuntu 16.04 LTS - Xenial Xerus</h3> <span class="anchor" id="line-73"></span><span class="anchor" id="line-74"></span><p class="line874">The 16.04.2 and newer point releases will ship with an updated kernel and X stack by default for the desktop. Server installations will default to the GA kernel and provide the enablement kernel as optional. <span class="anchor" id="line-75"></span><span class="anchor" id="line-76"></span><p class="line862">The 16.04 HWE Stacks will follow a new <a class="https" href="https://ubuntu.com/about/release-cycle#ubuntu-kernel-release-cycle">Rolling Update Model</a>. <span class="anchor" id="line-77"></span><span class="anchor" id="line-78"></span><p class="line874">It is highly recommended to read the above documentation before executing the following commands, as the HWE model has changed in 16.04. <span class="anchor" id="line-79"></span><span class="anchor" id="line-80"></span><p class="line874">Installing the HWE stack is simple: <span class="anchor" id="line-81"></span><span class="anchor" id="line-82"></span><p class="line867"> <h4 id="Desktop-2">Desktop</h4> <span class="anchor" id="line-83"></span><span class="anchor" id="line-84"></span><p class="line867"><tt> sudo apt-get install --install-recommends linux-generic-hwe-16.04 xserver-xorg-hwe-16.04 </tt> <span class="anchor" id="line-85"></span><span class="anchor" id="line-86"></span><p class="line867"> <h4 id="Server-2">Server</h4> <span class="anchor" id="line-87"></span><span class="anchor" id="line-88"></span><p class="line867"><tt> sudo apt-get install --install-recommends linux-generic-hwe-16.04 </tt> <span class="anchor" id="line-89"></span><span class="anchor" id="line-90"></span><p class="line867"> <h3 id="Ubuntu_14.04_LTS_-_Trusty_Tahr">Ubuntu 14.04 LTS - Trusty Tahr</h3> <span class="anchor" id="line-91"></span><span class="anchor" id="line-92"></span><p class="line874">The 14.04.2 and newer point releases will ship with an updated kernel and X stack by default. If you have installed with older media you can use the following to install the newer HWE kernel derived from 16.04 (Xenial): <span class="anchor" id="line-93"></span><span class="anchor" id="line-94"></span><p class="line867"> <h4 id="Desktop-3">Desktop</h4> <span class="anchor" id="line-95"></span><span class="anchor" id="line-96"></span><p class="line867"><tt> sudo apt-get install --install-recommends linux-generic-lts-xenial xserver-xorg-core-lts-xenial xserver-xorg-lts-xenial xserver-xorg-video-all-lts-xenial xserver-xorg-input-all-lts-xenial libwayland-egl1-mesa-lts-xenial </tt> <span class="anchor" id="line-97"></span><span class="anchor" id="line-98"></span><p class="line867"> <h4 id="Multiarch_Desktop">Multiarch Desktop</h4> <span class="anchor" id="line-99"></span><span class="anchor" id="line-100"></span><p class="line874">If you run a multiarch desktop (for example, i386 and amd64 on amd64, for gaming or Wine), you may find you need a slightly more involved command, like this: <span class="anchor" id="line-101"></span><span class="anchor" id="line-102"></span><p class="line867"><tt> sudo apt-get install --install-recommends linux-generic-lts-xenial xserver-xorg-core-lts-xenial xserver-xorg-lts-xenial xserver-xorg-video-all-lts-xenial xserver-xorg-input-all-lts-xenial libwayland-egl1-mesa-lts-xenial libgl1-mesa-glx-lts-xenial libgl1-mesa-glx-lts-xenial:i386 libglapi-mesa-lts-xenial:i386 </tt> <span class="anchor" id="line-103"></span><span class="anchor" id="line-104"></span><p class="line867"> <h4 id="Server-3">Server</h4> <span class="anchor" id="line-105"></span><p class="line874">Install the HWE kernel derived from 16.04 (xenial): <span class="anchor" id="line-106"></span><span class="anchor" id="line-107"></span><p class="line867"><tt> sudo apt-get install --install-recommends linux-generic-lts-xenial </tt> <span class="anchor" id="line-108"></span><span class="anchor" id="line-109"></span><p class="line867"> <h3 id="Ubuntu_12.04_LTS_-_Precise_Pangolin">Ubuntu 12.04 LTS - Precise Pangolin</h3> <span class="anchor" id="line-110"></span><span class="anchor" id="line-111"></span><p class="line874">The 12.04.2 and newer point releases will ship with an updated kernel and X stack by default. The current and supported hardware enablement stack is comprised of the newer kernel and X stacks from 14.04 (Trusty). <span class="anchor" id="line-112"></span><span class="anchor" id="line-113"></span><p class="line874">Anyone wishing to opt into the hardware enablement stack for Precise may do so running the following commands: <span class="anchor" id="line-114"></span><span class="anchor" id="line-115"></span><p class="line867"> <h4 id="Desktop-4">Desktop</h4> <span class="anchor" id="line-116"></span><span class="anchor" id="line-117"></span><p class="line867"><tt> sudo apt-get install --install-recommends linux-generic-lts-trusty xserver-xorg-lts-trusty libgl1-mesa-glx-lts-trusty</tt> <span class="anchor" id="line-118"></span><span class="anchor" id="line-119"></span><p class="line867"> <h4 id="Server-4">Server</h4> <span class="anchor" id="line-120"></span><span class="anchor" id="line-121"></span><p class="line867"><tt> sudo apt-get install --install-recommends linux-generic-lts-trusty </tt> <span class="anchor" id="line-122"></span><span class="anchor" id="line-123"></span><p class="line867"> <h3 id="Check_your_support_status">Check your support status</h3> <span class="anchor" id="line-124"></span><p class="line862">If you want a tool to determine if your install is still supported please use hwe-support-status as documented on <a href="/1204_HWE_EOL">https://wiki.ubuntu.com/1204_HWE_EOL</a> <span class="anchor" id="line-125"></span><span class="anchor" id="line-126"></span><p class="line867"><tt> hwe-support-status --verbose </tt> <span class="anchor" id="line-127"></span><span class="anchor" id="line-128"></span><p class="line867"> <h3 id="Ubuntu_12.04_LTS_Extended_Security_Maintenance">Ubuntu 12.04 LTS Extended Security Maintenance</h3> <span class="anchor" id="line-129"></span><p class="line874">Following the end-of-life of Ubuntu 12.04 LTS, Canonical is offering Ubuntu 12.04 ESM (Extended Security Maintenance), which provides important security fixes for the kernel and the most essential user space packages in Ubuntu 12.04. All Ubuntu 12.04 LTS users are encouraged to upgrade to Ubuntu 14.04 LTS or Ubuntu 16.04 LTS. But for those who cannot upgrade immediately, Ubuntu 12.04 ESM updates will help ensure the on-going security and integrity of Ubuntu 12.04 systems. <span class="anchor" id="line-130"></span><span class="anchor" id="line-131"></span><p class="line874">Ubuntu 12.04 LTS initially released with kernel based on version 3.2. The final hardware enablement kernel, when Ubuntu 12.04 LTS reached end of life, was based on kernel version 3.13. Both kernels are included as part of Ubuntu 12.04 ESM. <span class="anchor" id="line-132"></span><span class="anchor" id="line-133"></span><p class="line862">For more details on this program, please refer to <a class="https" href="https://wiki.ubuntu.com/SecurityTeam/ESM/12.04">https://wiki.ubuntu.com/SecurityTeam/ESM/12.04</a> <span class="anchor" id="line-134"></span><span class="anchor" id="line-135"></span><p class="line867"><span class="anchor" id="line-136"></span><p class="line867"><span class="anchor" id="line-137"></span><p class="line867"><span class="anchor" id="line-138"></span><p class="line867"><span class="anchor" id="line-139"></span><p class="line867"><span class="anchor" id="line-140"></span><p class="line867"><span class="anchor" id="line-141"></span><p class="line867"><span class="anchor" id="line-142"></span><p class="line867"><span class="anchor" id="line-143"></span><p class="line867"><span class="anchor" id="line-144"></span><p class="line867"><span class="anchor" id="line-145"></span><p class="line867"><span class="anchor" id="line-146"></span><p class="line867"><span class="anchor" id="line-147"></span><p class="line867"><span class="anchor" id="line-148"></span><p class="line867"><span class="anchor" id="line-149"></span><p class="line867"><span class="anchor" id="line-150"></span><p class="line867"><span class="anchor" id="line-151"></span><p class="line867"><span class="anchor" id="line-152"></span><p class="line867"><span class="anchor" id="line-153"></span><p class="line867"><span class="anchor" id="line-154"></span><span class="anchor" id="line-155"></span><p class="line867"><span class="anchor" id="line-156"></span><span class="anchor" id="bottom"></span></div>  <div id="pagebottom"></div> </div> <div class="entry-utility"> <span class="cat-links"> <p id="pageinfo" class="info" lang="en" dir="ltr">Kernel/LTSEnablementStack (last edited 2023-05-17 17:58:01 by <span title="anthonywong @ 2.25.219.29[2.25.219.29]"><a class="interwiki" href="https://launchpad.net/~anthonywong" title="anthonywong @ 2.25.219.29[2.25.219.29]">anthonywong</a></span>)</p> </span> </div> </div> </div> </div> <div class="clearBoth"></div> </div> </div> <div id="footer"> <div id="siteinfo"> <p> The material on this wiki is available under a free license, see <a href="https://help.ubuntu.com/community/License">Copyright / License</a> for details. </p> </div> </div> <script> (function(i,s,o,g,r,a,m){ i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) })(window,document,'script','//www.google-analytics.com/analytics.js','ga'); ga('create', 'UA-1018242-7', 'auto'); ga('send', 'pageview'); </script></body> </html>