cuda升级：

1. 查看现用版本：

  1. cat /usr/local/cuda/version.txt

2. 移除旧版本：

apt-get --purge remove cuda

3. 官网链接：

https://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html

https://developer.nvidia.com/cuda-downloads?target_os=Linux&target_arch=x86_64&target_distro=Ubuntu&target_version=1804&target_type=deblocal

![older](https://raw.githubusercontent.com/zkylbn/Go-test/master/picture/cuda-older.jpg)

4. 安装命令：

```
wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/cuda-ubuntu1804.pin

sudo mv cuda-ubuntu1804.pin /etc/apt/preferences.d/cuda-repository-pin-600

wget http://developer.download.nvidia.com/compute/cuda/10.1/Prod/local_installers/cuda-repo-ubuntu1804-10-1-local-10.1.243-418.87.00_1.0-1_amd64.deb

sudo dpkg -i cuda-repo-ubuntu1804-10-1-local-10.1.243-418.87.00_1.0-1_amd64.deb

sudo apt-key add /var/cuda-repo-10-1-local-10.1.243-418.87.00/7fa2af80.pub

sudo apt-get update

sudo apt-get -y install cuda

### 5. 如果报错： 

 package XXX needs to be reinstalled, but I can't find an archive

sudo cp /var/lib/dpkg/status status.bkp

sudo gedit /var/lib/dpkg/status

 在文件中找到错误的package状态，并删除

 为安全起见 再使用 `apt-get -f install` 修复一下。即可

### 6. 继续报错：

.... Try 'apt --fix-broken install '。。。

apt —fix-broken install


### 7. nvidia-docker2升级为nvidia-container-toolkit：

 添加源：

distribution=$(. /etc/os-release;echo \$ID\$VERSION_ID)

curl -s -L https://nvidia.github.io/nvidia-docker/gpgkey | sudo apt-key add -

curl -s -L https://nvidia.github.io/nvidia-docker/$distribution/nvidia-docker.list | sudo tee /etc/apt/sources.list.d/nvidia-docker.list


 安装重启：

sudo apt update && sudo apt install -y nvidia-container-toolkit

sudo systemctl restart docker