https://blog.zerlaer.cn/tags/kernel/ Recent content in Kernel on Zerlaer's Notebook Hugo zh-cn Sat, 10 Jan 2026 12:41:29 +0800 https://blog.zerlaer.cn/article/gentoo-linux%E5%86%85%E6%A0%B8%E7%BC%96%E8%AF%91%E6%8C%87%E5%8D%97/ Sat, 10 Jan 2026 12:41:29 +0800 https://blog.zerlaer.cn/article/gentoo-linux%E5%86%85%E6%A0%B8%E7%BC%96%E8%AF%91%E6%8C%87%E5%8D%97/ <h2 id="为什么要编译自己的内核">为什么要编译自己的内核？</h2> <p>在Gentoo Linux中，编译自己的内核是一项重要的技能，它有以下几个好处：</p> <ol> <li><strong>性能优化</strong>：针对特定硬件配置进行优化，提高系统性能</li> <li><strong>减少内存占用</strong>：只编译需要的功能和驱动，减少内核体积</li> <li><strong>更好的硬件支持</strong>：可以启用实验性或最新的硬件支持</li> <li><strong>安全性</strong>：可以应用特定的安全补丁或配置</li> <li><strong>学习机会</strong>：深入了解Linux内核的工作原理</li> </ol> <h2 id="准备工作">准备工作</h2> <h3 id="安装必要的工具">安装必要的工具</h3> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span><span style="color:#75715e"># 安装内核开发工具和依赖</span> </span></span><span style="display:flex;"><span>sudo emerge sys-kernel/linux-headers sys-devel/gcc sys-devel/make sys-devel/binutils </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span><span style="color:#75715e"># 安装配置工具（根据需要选择）</span> </span></span><span style="display:flex;"><span>sudo emerge sys-apps/ncurses sys-apps/kmod </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span><span style="color:#75715e"># 安装genkernel（可选，用于自动化编译）</span> </span></span><span style="display:flex;"><span>sudo emerge sys-kernel/genkernel </span></span></code></pre></div><h3 id="获取内核源代码">获取内核源代码</h3> <p>Gentoo提供了多种内核源代码包，你可以根据需要选择：</p> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span><span style="color:#75715e"># 查看可用的内核版本</span> </span></span><span style="display:flex;"><span>eix sys-kernel/gentoo-sources </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span><span style="color:#75715e"># 安装稳定版内核</span> </span></span><span style="display:flex;"><span>sudo emerge sys-kernel/gentoo-sources </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span><span style="color:#75715e"># 安装最新版内核</span> </span></span><span style="display:flex;"><span>sudo emerge ~sys-kernel/gentoo-sources </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span><span style="color:#75715e"># 安装特定版本</span> </span></span><span style="display:flex;"><span>sudo emerge <span style="color:#f92672">=</span>sys-kernel/gentoo-sources-6.1.0 </span></span></code></pre></div><h3 id="设置内核源代码符号链接">设置内核源代码符号链接</h3> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span><span style="color:#75715e"># 查看可用的内核源代码</span> </span></span><span style="display:flex;"><span>ls -la /usr/src/ </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span><span style="color:#75715e"># 设置默认内核源代码</span> </span></span><span style="display:flex;"><span>sudo eselect kernel set <span style="color:#ae81ff">1</span> </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span><span style="color:#75715e"># 进入内核源代码目录</span> </span></span><span style="display:flex;"><span>cd /usr/src/linux </span></span></code></pre></div><h2 id="方法一手动编译内核">方法一：手动编译内核</h2> <h3 id="1-配置内核">1. 配置内核</h3> <p>Gentoo提供了多种内核配置方法，选择一种你熟悉的：</p>