CUDA完全卸载和重装

在装环境的时候，cuda是较为难装得，各种版本冲突，各种版本满天飞，有时候版本冲突了，直接全部清除重新安装

<pre>$ sudo apt-get --purge remove "*cublas*" "cuda*" "nsight*" 

$ sudo apt-get --purge remove "*nvidia*"

$ sudo rm -rf /usr/local/cuda*

$ sudo vim /etc/apt/sources.list
找到下面这行注释掉
#deb http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/ /

$ sudo apt-get update
现在就可以开启重新安装了 

重新安装cuda最好是能够在官网上去找命令。

网址：https://developer.nvidia.com/cuda-11-8-0-download-archive?target_os=Linux&target_arch=x86_64&Distribution=Ubuntu&target_version=22.04&target_type=deb_local

wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/x86_64/cuda-ubuntu2204.pin

sudo mv cuda-ubuntu2204.pin /etc/apt/preferences.d/cuda-repository-pin-600

wget https://developer.download.nvidia.com/compute/cuda/11.8.0/local_installers/cuda-repo-ubuntu2204-11-8-local_11.8.0-520.61.05-1_amd64.deb

sudo dpkg -i cuda-repo-ubuntu2204-11-8-local_11.8.0-520.61.05-1_amd64.deb

sudo cp /var/cuda-repo-ubuntu2204-11-8-local/cuda-*-keyring.gpg /usr/share/keyrings/

sudo apt-get update

sudo apt-get -y install cuda</pre>

还有NVIDIA驱动的卸载，可以用以下命令卸载干净

sudo apt-get --purge remove nvidia*
sudo apt autoremove

dpkg -l | grep nvidia

sudo apt-get --purge remove "*nvidia*"

dpkg -l | grep nvidia

reboot