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clear-linux-documentation/guides/clear/compatible-kernels.html
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<section id="kernels">
<span id="compatible-kernels"></span><h1>Kernels<a class="headerlink" href="#kernels" title="Link to this heading"></a></h1>
<p>The Clear Linux* OS provides the following Linux kernels with a respective bundle.
This document describes the specific use cases these <a class="reference external" href="https://github.com/clearlinux/clr-bundles">bundles</a> serve
and provides links to their source code.</p>
<section id="bare-metal-only">
<h2>Bare metal only<a class="headerlink" href="#bare-metal-only" title="Link to this heading"></a></h2>
<dl class="simple">
<dt>Kernel native</dt><dd><p>The <em>kernel-native</em> bundle focuses on the bare metal platforms. It is
optimized for fast booting and performs best on the Intel® Architecture Processors
described on the <a class="reference internal" href="../../reference/system-requirements.html#system-requirements"><span class="std std-ref">supported hardware list</span></a>. The
optimization patches are found in our <a class="reference external" href="https://github.com/clearlinux-pkgs/linux">Linux</a> GitHub* repo.</p>
</dd>
</dl>
</section>
<section id="also-compatible-with-vms">
<span id="vm-kernels"></span><h2>Also compatible with VMs<a class="headerlink" href="#also-compatible-with-vms" title="Link to this heading"></a></h2>
<dl class="simple">
<dt>Kernel LTS</dt><dd><p>The <em>kernel-lts</em> bundle focuses on the bare metal platforms but uses the
latest <abbr title="Long Term Support">LTS</abbr> Linux kernel. It is optimized for
fast booting and performs best on the Intel® Architecture Processors described
on the <a class="reference internal" href="../../reference/system-requirements.html#system-requirements"><span class="std std-ref">supported hardware list</span></a>. Additionally, this
kernel includes the VirtualBox* kernel modules, see our
<a class="reference internal" href="../../get-started/virtual-machine-install/virtualbox-cl-installer.html#virtualbox-cl-installer"><span class="std std-ref">instructions on using Virtualbox</span></a> for more
information. The optimization patches are found in our <a class="reference external" href="https://github.com/clearlinux-pkgs/linux-lts">Linux-LTS</a> GitHub
repo.</p>
</dd>
</dl>
</section>
<section id="vm-only">
<h2>VM only<a class="headerlink" href="#vm-only" title="Link to this heading"></a></h2>
<dl class="simple">
<dt>Kernel KVM</dt><dd><p>The <em>kernel-kvm</em> bundle focuses on the Linux
<abbr title="Kernel-based Virtual Machine">KVM</abbr>. It is optimized for fast
booting and performs best on Virtual Machines running on the Intel® Architecture
Processors described on the
<a class="reference internal" href="../../reference/system-requirements.html#system-requirements"><span class="std std-ref">supported hardware list</span></a>. Use this kernel when
running Clear Linux OS as the guest OS on top of <em>qemu/kvm</em>. Use this kernel with
<strong>cloud orchestrators</strong> using <em>qemu/kvm</em> internally as their <strong>hypervisor</strong>
. This kernel can be used as a standalone Clear Linux OS VM, see our
<a class="reference internal" href="../../get-started/virtual-machine-install/kvm.html#kvm"><span class="std std-ref">instructions on using KVM</span></a> for more information. The
optimization patches are found in our <a class="reference external" href="https://github.com/clearlinux-pkgs/linux-kvm">Linux-KVM</a> GitHub repo.</p>
</dd>
<dt>Kernel Hyper-V*</dt><dd><p>The <em>kernel-hyperv</em> bundle focuses on running Linux on Microsoft*
Hyper-V. It is optimized for fast booting and performs best on Virtual
Machines running on the Intel® Architecture Processors described on the
<a class="reference internal" href="../../reference/system-requirements.html#system-requirements"><span class="std std-ref">supported hardware list</span></a>.
Use this kernel when running Clear Linux OS as the guest OS of <strong>Cloud Instances</strong> in
projects such as Microsoft <a class="reference external" href="https://azuremarketplace.microsoft.com/en-us/marketplace/apps/clear-linux-project.clear-linux-os">Azure</a>*. This kernel can be used in a
standalone Clear Linux OS VM, see our <a class="reference internal" href="../../get-started/virtual-machine-install/hyper-v.html#hyper-v"><span class="std std-ref">instructions on using Hyper-V</span></a>
for more information. The optimization patches are found in our
<a class="reference external" href="https://github.com/clearlinux-pkgs/linux-hyperv">Linux-HyperV</a> GitHub repo.</p>
</dd>
</dl>
<p><em>Intel and the Intel logo are trademarks of Intel Corporation or its subsidiaries.</em></p>
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<ul>
<li><a class="reference internal" href="#">Kernels</a><ul>
<li><a class="reference internal" href="#bare-metal-only">Bare metal only</a></li>
<li><a class="reference internal" href="#also-compatible-with-vms">Also compatible with VMs</a></li>
<li><a class="reference internal" href="#vm-only">VM only</a></li>
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