How To Re-compile A Single Module In Ubuntu Jammy HWE Kernel

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Introduction

Ubuntu Jammy HWE (Hardware Enablement) kernel is a long-term support (LTS) kernel that provides the latest hardware support for Ubuntu 22.04. However, sometimes you may need to re-compile a single module in the kernel to fix a specific issue or to add new functionality. In this article, we will guide you through the process of re-compiling a single module in the Ubuntu Jammy HWE kernel.

Prerequisites

Before you start, make sure you have the following prerequisites:

  • Ubuntu 22.04: You need to have Ubuntu 22.04 installed on your system.
  • Kernel source: You need to have the kernel source code installed on your system. You can install it by running the following command:

sudo apt-get install linux-source

*   **Build tools**: You need to have the build tools installed on your system. You can install them by running the following command:
    ```bash
sudo apt-get install build-essential
  • Git: You need to have Git installed on your system. You can install it by running the following command:

sudo apt-get install git


**Step 1: Clone the Ubuntu Stock Kernel Repo**
---------------------------------------------

To re-compile a single module, you need to clone the Ubuntu stock kernel repo. You can do this by running the following command:


git clone git://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/jammy
</code></pre>
<p>This will download the kernel source code to your local machine.</p>
<h2><strong>Step 2: Navigate to the Kernel Source Directory</strong></h2>
<p>Once you have cloned the kernel repo, navigate to the kernel source directory by running the following command:</p>
<pre><code class="hljs">cd jammy
</code></pre>
<h2><strong>Step 3: Checkout the Specific Kernel Version</strong></h2>
<p>To re-compile a single module, you need to checkout the specific kernel version. You can do this by running the following command:</p>
<pre><code class="hljs">git checkout v6.8.0-45
</code></pre>
<p>This will checkout the specific kernel version.</p>
<h2><strong>Step 4: Make the Kernel Source Directory</strong></h2>
<p>To make the kernel source directory, you need to run the following command:</p>
<pre><code class="hljs">make mrproper
</code></pre>
<p>This will clean the kernel source directory and prepare it for compilation.</p>
<h2><strong>Step 5: Configure the Kernel</strong></h2>
<p>To configure the kernel, you need to run the following command:</p>
<pre><code class="hljs">make menuconfig
</code></pre>
<p>This will open the kernel configuration menu. You can navigate through the menu and select the modules you want to re-compile.</p>
<h2><strong>Step 6: Re-compile the Single Module</strong></h2>
<p>To re-compile a single module, you need to run the following command:</p>
<pre><code class="hljs">make M=drivers/net/wireless modules
</code></pre>
<p>This will re-compile the wireless module.</p>
<h2><strong>Step 7: Install the New Module</strong></h2>
<p>To install the new module, you need to run the following command:</p>
<pre><code class="hljs">sudo make modules_install
</code></pre>
<p>This will install the new module.</p>
<h2><strong>Step 8: Reboot the System</strong></h2>
<p>To load the new module, you need to reboot the system. You can do this by running the following command:</p>
<pre><code class="hljs">sudo reboot
</code></pre>
<p>This will reboot the system and load the new module.</p>
<h2><strong>Conclusion</strong></h2>
<p>Re-compiling a single module in the Ubuntu Jammy HWE kernel can be a complex process, but with the right steps, you can do it easily. In this article, we have guided you through the process of re-compiling a single module in the Ubuntu Jammy HWE kernel. We hope this article has been helpful in providing you with the necessary information to re-compile a single module in the Ubuntu Jammy HWE kernel.</p>
<h2><strong>Troubleshooting</strong></h2>
<p>If you encounter any issues during the re-compilation process, you can try the following troubleshooting steps:</p>
<ul>
<li><strong>Check the kernel version</strong>: Make sure you are using the correct kernel version.</li>
<li><strong>Check the module dependencies</strong>: Make sure the module dependencies are correct.</li>
<li><strong>Check the kernel configuration</strong>: Make sure the kernel configuration is correct.</li>
<li><strong>Check the build tools</strong>: Make sure the build tools are installed correctly.</li>
</ul>
<h2><strong>Additional Resources</strong></h2>
<p>If you need additional resources to re-compile a single module in the Ubuntu Jammy HWE kernel, you can try the following resources:</p>
<ul>
<li><strong>Ubuntu kernel documentation</strong>: You can find the Ubuntu kernel documentation at <a href="https://kernel.ubuntu.com/docs/">https://kernel.ubuntu.com/docs/</a>.</li>
<li><strong>Linux kernel documentation</strong>: You can find the Linux kernel documentation at <a href="https://www.kernel.org/doc/">https://www.kernel.org/doc/</a>.</li>
<li><strong>Ubuntu kernel mailing list</strong>: You can find the Ubuntu kernel mailing list at <a href="https://lists.ubuntu.com/archives/ubuntu-kernel/">https://lists.ubuntu.com/archives/ubuntu-kernel/</a>.</li>
</ul>
<h2><strong>FAQs</strong></h2>
<p><strong>Q: How do I re-compile a single module in the Ubuntu Jammy HWE kernel?</strong>
A: To re-compile a single module in the Ubuntu Jammy HWE kernel, you need to follow the steps outlined in this article.</p>
<p><strong>Q: What are the prerequisites for re-compiling a single module in the Ubuntu Jammy HWE kernel?</strong>
A: The prerequisites for re-compiling a single module in the Ubuntu Jammy HWE kernel are Ubuntu 22.04, kernel source, build tools, and Git.</p>
<p><strong>Q: How do I install the new module?</strong>
A: To install the new module, you need to run the following command: <code>sudo make modules_install</code>.</p>

<code></code>

<h2><strong>Q: What is the Ubuntu Jammy HWE kernel?</strong></h2>
<p>A: The Ubuntu Jammy HWE (Hardware Enablement) kernel is a long-term support (LTS) kernel that provides the latest hardware support for Ubuntu 22.04.</p>
<h2><strong>Q: Why do I need to re-compile a single module in the Ubuntu Jammy HWE kernel?</strong></h2>
<p>A: You may need to re-compile a single module in the Ubuntu Jammy HWE kernel to fix a specific issue or to add new functionality.</p>
<h2><strong>Q: What are the prerequisites for re-compiling a single module in the Ubuntu Jammy HWE kernel?</strong></h2>
<p>A: The prerequisites for re-compiling a single module in the Ubuntu Jammy HWE kernel are Ubuntu 22.04, kernel source, build tools, and Git.</p>
<h2><strong>Q: How do I clone the Ubuntu stock kernel repo?</strong></h2>
<p>A: To clone the Ubuntu stock kernel repo, you need to run the following command:</p>
<pre><code class="hljs">git clone git://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/jammy
</code></pre>
<h2><strong>Q: How do I navigate to the kernel source directory?</strong></h2>
<p>A: To navigate to the kernel source directory, you need to run the following command:</p>
<pre><code class="hljs">cd jammy
</code></pre>
<h2><strong>Q: How do I checkout the specific kernel version?</strong></h2>
<p>A: To checkout the specific kernel version, you need to run the following command:</p>
<pre><code class="hljs">git checkout v6.8.0-45
</code></pre>
<h2><strong>Q: How do I make the kernel source directory?</strong></h2>
<p>A: To make the kernel source directory, you need to run the following command:</p>
<pre><code class="hljs">make mrproper
</code></pre>
<h2><strong>Q: How do I configure the kernel?</strong></h2>
<p>A: To configure the kernel, you need to run the following command:</p>
<pre><code class="hljs">make menuconfig
</code></pre>
<h2><strong>Q: How do I re-compile a single module?</strong></h2>
<p>A: To re-compile a single module, you need to run the following command:</p>
<pre><code class="hljs">make M=drivers/net/wireless modules
</code></pre>
<h2><strong>Q: How do I install the new module?</strong></h2>
<p>A: To install the new module, you need to run the following command:</p>
<pre><code class="hljs">sudo make modules_install
</code></pre>
<h2><strong>Q: How do I reboot the system?</strong></h2>
<p>A: To reboot the system, you need to run the following command:</p>
<pre><code class="hljs">sudo reboot
</code></pre>
<h2><strong>Q: What are the troubleshooting steps if I encounter issues during the re-compilation process?</strong></h2>
<p>A: The troubleshooting steps if you encounter issues during the re-compilation process are:</p>
<ul>
<li><strong>Check the kernel version</strong>: Make sure you are using the correct kernel version.</li>
<li><strong>Check the module dependencies</strong>: Make sure the module dependencies are correct.</li>
<li><strong>Check the kernel configuration</strong>: Make sure the kernel configuration is correct.</li>
<li><strong>Check the build tools</strong>: Make sure the build tools are installed correctly.</li>
</ul>
<h2><strong>Q: Where can I find additional resources for re-compiling a single module in the Ubuntu Jammy HWE kernel?</strong></h2>
<p>A: You can find additional resources for re-compiling a single module in the Ubuntu Jammy HWE kernel at:</p>
<ul>
<li><strong>Ubuntu kernel documentation</strong>: <a href="https://kernel.ubuntu.com/docs/">https://kernel.ubuntu.com/docs/</a></li>
<li><strong>Linux kernel documentation</strong>: <a href="https://www.kernel.org/doc/">https://www.kernel.org/doc/</a></li>
<li><strong>Ubuntu kernel mailing list</strong>: <a href="https://lists.ubuntu.com/archives/ubuntu-kernel/">https://lists.ubuntu.com/archives/ubuntu-kernel/</a></li>
</ul>
<h2><strong>Q: How do I contact the Ubuntu kernel team for further assistance?</strong></h2>
<p>A: You can contact the Ubuntu kernel team for further assistance by sending an email to the Ubuntu kernel mailing list: <a href="https://lists.ubuntu.com/archives/ubuntu-kernel/">https://lists.ubuntu.com/archives/ubuntu-kernel/</a>.</p>