diff --git a/content/about-virtual.md b/content/about-virtual.md
index 38944bb..e5e4d59 100644
--- a/content/about-virtual.md
+++ b/content/about-virtual.md
@@ -237,6 +237,50 @@ qemu-img convert -f raw -O vmdk disk.img disk.vmdk
 # raw → vhdx
 qemu-img convert -f raw -O vhdx disk.img disk.vhdx
 ```
+## 扩展
+
+1. 扩展大小
+```
+virsh domblklist <虚拟机名字>
+Target   Source
+vda      /var/lib/libvirt/images/ubuntu-24-04.qcow2
+
+qemu-img resize /var/lib/libvirt/images/ubuntu-24-04.qcow2 +20G
+```
+
+
+2. 查看磁盘情况：
+
+```bash
+lsblk
+```
+
+3. 如果是单分区系统（ext4）：
+
+* 安装工具：
+
+```bash
+sudo nix-env -iA nixos.cloud-utils # 提供 growpart
+```
+
+* 扩展分区：
+
+```bash
+sudo growpart /dev/vda 1
+```
+
+* 扩展文件系统：
+
+ext4：
+```bash
+sudo resize2fs /dev/vda1
+```
+
+xfs：
+```bash
+sudo xfs_growfs /
+```
+
 
 ## 压缩
 
diff --git a/public/about-virtual/index.html b/public/about-virtual/index.html
index f0a0fc6..698d5ba 100644
--- a/public/about-virtual/index.html
+++ b/public/about-virtual/index.html
@@ -313,6 +313,43 @@
 </span><span style="color:#888888;"># raw → vhdx
 </span><span style="color:#ffb964;">qemu-img</span><span> convert</span><span style="color:#ffb964;"> -f</span><span> raw</span><span style="color:#ffb964;"> -O</span><span> vhdx disk.img disk.vhdx
 </span></code></pre>
+<h2 id="kuo-zhan">扩展</h2>
+<ol>
+<li>扩展大小</li>
+</ol>
+<pre style="background-color:#151515;color:#e8e8d3;"><code><span>virsh domblklist &lt;虚拟机名字&gt;
+</span><span>Target   Source
+</span><span>vda      /var/lib/libvirt/images/ubuntu-24-04.qcow2
+</span><span>
+</span><span>qemu-img resize /var/lib/libvirt/images/ubuntu-24-04.qcow2 +20G
+</span></code></pre>
+<ol start="2">
+<li>查看磁盘情况：</li>
+</ol>
+<pre data-lang="bash" style="background-color:#151515;color:#e8e8d3;" class="language-bash "><code class="language-bash" data-lang="bash"><span style="color:#ffb964;">lsblk
+</span></code></pre>
+<ol start="3">
+<li>如果是单分区系统（ext4）：</li>
+</ol>
+<ul>
+<li>安装工具：</li>
+</ul>
+<pre data-lang="bash" style="background-color:#151515;color:#e8e8d3;" class="language-bash "><code class="language-bash" data-lang="bash"><span style="color:#ffb964;">sudo</span><span> nix-env</span><span style="color:#ffb964;"> -iA</span><span> nixos.cloud-utils </span><span style="color:#888888;"># 提供 growpart
+</span></code></pre>
+<ul>
+<li>扩展分区：</li>
+</ul>
+<pre data-lang="bash" style="background-color:#151515;color:#e8e8d3;" class="language-bash "><code class="language-bash" data-lang="bash"><span style="color:#ffb964;">sudo</span><span> growpart /dev/vda 1
+</span></code></pre>
+<ul>
+<li>扩展文件系统：</li>
+</ul>
+<p>ext4：</p>
+<pre data-lang="bash" style="background-color:#151515;color:#e8e8d3;" class="language-bash "><code class="language-bash" data-lang="bash"><span style="color:#ffb964;">sudo</span><span> resize2fs /dev/vda1
+</span></code></pre>
+<p>xfs：</p>
+<pre data-lang="bash" style="background-color:#151515;color:#e8e8d3;" class="language-bash "><code class="language-bash" data-lang="bash"><span style="color:#ffb964;">sudo</span><span> xfs_growfs /
+</span></code></pre>
 <h2 id="ya-suo">压缩</h2>
 <p>有时候我们需要备份QEMU的镜像，但是镜像大小非常庞大，可以对其进行压缩。</p>
 <p>首先在虚拟机里（以Ubuntu为例）执行：</p>
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