# 飞牛开启 IOMMU 硬件直通

<span class="md-plain">零刻 ME mini/pro BIOS 默认开启虚拟化、IOMMU，但是在飞牛 OS 的虚拟机中仍提示 “IOMMU 未开启”，这是因为还需要手动更新内核，按下列步骤操作即可。</span>

[![未开启IOMMU.png](https://doc.bee-link.com.cn/uploads/images/gallery/2026-05/scaled-1680-/ircCCgICMTpnascs-iommu.png)](https://doc.bee-link.com.cn/uploads/images/gallery/2026-05/ircCCgICMTpnascs-iommu.png)

<div cid="n24" class="md-hr md-end-block" id="bkmrk--1" mdtype="hr" tabindex="-1">---

</div><span class="md-pair-s">**<span class="md-plain">步骤：</span>**</span>

<span class="md-pair-s ">**<span class="md-plain">1. 开启飞牛 SSH</span>**</span> <span class="md-plain">在飞牛系统设置中开启 SSH 功能和用户权限</span>

[![开启SSH.png](https://doc.bee-link.com.cn/uploads/images/gallery/2026-05/scaled-1680-/NmLgit72U7qhzjET-ssh.png)](https://doc.bee-link.com.cn/uploads/images/gallery/2026-05/NmLgit72U7qhzjET-ssh.png)

<span class="md-pair-s">**<span class="md-plain">2. 登录 SSH</span>**</span> <span class="md-plain">使用 SSH 工具（例 Windows PowerShell）连接飞牛，执行：</span>

```
sudo -i
```

<span class="md-plain">输入密码（默认不会显示密码，输入后按回车）登录 root 账户</span>

[![登录SSH.png](https://doc.bee-link.com.cn/uploads/images/gallery/2026-05/scaled-1680-/1rDfionl6bM6XsEY-ssh.png)](https://doc.bee-link.com.cn/uploads/images/gallery/2026-05/1rDfionl6bM6XsEY-ssh.png)

<span class="md-pair-s">**<span class="md-plain">3. 编辑 GRUB 配置</span>**</span> <span class="md-plain">执行：</span>

```
nano /etc/default/grub
```

<span class="md-plain">找到 </span><span class="md-pair-s" spellcheck="false">`GRUB_CMDLINE_LINUX_DEFAULT`</span><span class="md-plain"> 这一行，在引号内添加：</span>

```
intel_iommu=on
```

> <span class="md-plain">AMD 处理器把 </span><span class="md-pair-s" spellcheck="false">`intel`</span><span class="md-plain"> 改成 </span><span class="md-pair-s" spellcheck="false">`amd`</span>
> 
> <span class="md-pair-s ">**<span class="md-plain">错误修改 GRUB 配置可能导致系统无法启动，请谨慎操作。</span>**</span>

[![编辑grub.png](https://doc.bee-link.com.cn/uploads/images/gallery/2026-05/scaled-1680-/G0P8ptgTrih8C5al-grub.png)](https://doc.bee-link.com.cn/uploads/images/gallery/2026-05/G0P8ptgTrih8C5al-grub.png)

<span class="md-pair-s">**<span class="md-plain">4. 保存退出</span>**</span> <span class="md-plain">按 </span><span class="md-pair-s" spellcheck="false">`Ctrl+X`</span><span class="md-plain">，按 </span><span class="md-pair-s" spellcheck="false">`y`</span><span class="md-plain"> ，回车退出</span>

<span class="md-pair-s">**<span class="md-plain">5. 更新内核并重启</span>**</span> <span class="md-plain">执行：</span>

```
update-grub<br></br>update-initramfs -u -k all<br></br>reboot
```

[![更新内核重启.png](https://doc.bee-link.com.cn/uploads/images/gallery/2026-05/scaled-1680-/1u1nL0HOth8Lj93R-tnvGh8oe1i.png)](https://doc.bee-link.com.cn/uploads/images/gallery/2026-05/1u1nL0HOth8Lj93R-tnvGh8oe1i.png)

<span class="md-pair-s ">**<span class="md-plain">6. 重启后打开虚拟机确认 IOMMU 开启成功。</span>**</span>

[![IOMMU开启状态.png](https://doc.bee-link.com.cn/uploads/images/gallery/2026-05/scaled-1680-/7zVX3dP50vWrKVpG-iommu.png)](https://doc.bee-link.com.cn/uploads/images/gallery/2026-05/7zVX3dP50vWrKVpG-iommu.png)

<div cid="n42" class="md-hr md-end-block" id="bkmrk--7" mdtype="hr" tabindex="-1">---

</div><span class="md-pair-s">**<span class="md-plain">注意：</span>**</span>

- <span class="md-plain">操作完毕后，建议回到设置关闭 SSH，以确保安全性。</span>
- <span class="md-plain md-expand">硬件直通技术存在一定风险，请在操作前了解相关影响</span>