本文共 1187 字，大约阅读时间需要 3 分钟。

1. 显卡直通后无法开启电源

报错如下：

Module 'DevicePowerOn' power on failed.

解决方法：

在虚拟机高级选项里面添加参数 （note：这个其实是ubuntu 18.04，当初ubuntu16.04装驱动现实gcc内核编译版本不匹配，后面装了ubuntu 18.04名字打错了。）

pciPassthru.use64bitMMIO = TRUE

pciPassthru.64bitMMIOSizeGB = 96

参考 

2. 在能开启电源后，无法打上驱动。Unable to determine if Secure Boot is enabled

报错如下：

-> done.

-> Kernel module compilation complete. -> Unable to determine if Secure Boot is enabled: No such file or directory ERROR: Unable to load the kernel module ‘nvidia.ko’. This happens most frequently when t his kernel module was built against the wrong or improperly configured kernel sources, wi th a version of gcc that differs from the one used to build the target kernel, or if a dr iver such as rivafb, nvidiafb, or nouveau is present and prevents the NVIDIA kernel modul e from obtaining ownership of the NVIDIA graphics device(s), or no NVIDIA GPU installed i n this system is supported by this NVIDIA Linux graphics driver release.

解决方法：

1. 把虚拟机的bios模式改成EFI模式（我重新安装了虚拟机。开始的时候就选择efi模式，安装了系统后，不知道怎么改efi。）。

2. sudo apt install mokutil

3. sudo mokutil --disable-validation

4. reboot

5. 此时电脑重启，出现蓝屏，按任意键，出现四个选项：选择change secure boot state

6. 输入相应密码的第几个字符。然后修改为disable就可以了。

详细操作参考：

转载地址：http://jdzvi.baihongyu.com/