NVIDIA-SMI has failed because it couldn’t communicate with the NVIDIA driver_linux 断电重启后 nvidia-smi has failed because it could-优快云博客

本文链接：https://blog.youkuaiyun.com/zhaozebin666/article/details/129813383

当Linux系统内核更新后，运行nvidia-smi命令出现错误，可以通过回退到先前的内核版本来解决。首先，查看已安装的内核版本，然后确定要回退的版本。接着，修改GRUB默认启动项，选择旧内核启动，更新GRUB配置并重启系统。最后，确认内核版本已成功回退。此外，文章还提及了如何安装指定版本的内核。

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NVIDIA-SMI has failed because it couldn’t communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running

问题描述

linux 系统内核更新导致 nvidia-smi 命令报错：

NVIDIA-SMI has failed because it couldn’t communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running

解决思路

回退内核到之前的版本
1.查看当前系统拥有的内核版本

dpkg --get-selections | grep linux-image
#output:
linux-image-5.15.0-67-generic                   install
linux-image-5.4.0-100-generic                   install

查看当前系统使用的内核版本

uname -r
#output
5.15.0-67-generic

查看内核完整信息

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
  menuentry_id_option=""
export menuentry_id_option
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-9673a4ed-1d23-492e-b385-018813d0ba00' {
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-9673a4ed-1d23-492e-b385-018813d0ba00' {
        menuentry 'Ubuntu, with Linux 5.15.0-67-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-67-generic-advanced-9673a4ed-1d23-492e-b385-018813d0ba00' {
        menuentry 'Ubuntu, with Linux 5.15.0-67-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.15.0-67-generic-recovery-9673a4ed-1d23-492e-b385-018813d0ba00' {
        menuentry 'Ubuntu, with Linux 5.4.0-100-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-100-generic-advanced-9673a4ed-1d23-492e-b385-018813d0ba00' {
        menuentry 'Ubuntu, with Linux 5.4.0-100-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-100-generic-recovery-9673a4ed-1d23-492e-b385-018813d0ba00' {

找到自己想回退的内核版本(不带 recovery mode 那个)，例如

menuentry 'Ubuntu, with Linux 5.4.0-100-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.4.0-100-generic-advanced-9673a4ed-1d23-492e-b385-018813d0ba00' {

根据grub版本修改/etc/default/grub

grub版本大于等于2.00

sudo vim /etc/default/grub
# 修改`GRUB_DEFAULT=xxx`成以下内容：
GRUB_DEFAULT=gnulinux-advanced-9673a4ed-1d23-492e-b385-018813d0ba00>gnulinux-5.4.0-100-generic-advanced-9673a4ed-1d23-492e-b385-018813d0ba00

grub版本小于2.00

sudo vim /etc/default/grub
# 修改`GRUB_DEFAULT=xxx`成以下内容：
GRUB_DEFAULT="Advanced options for Ubuntu>Ubuntu，Linux 5.4.0-100-generic"

更新并重启
```
sudo update-grub
sudo reboot
```

查看当前系统使用的内核版本

uname -r
#output
5.4.0-100-generic

番外-安装指定版本内核

# 例如 5.8.0-50
sudo apt install linux-image-5.8.0-50-generic