Ubuntu系统安装Nvidia显卡驱动+安装CUDA

全网最简单的Ubuntu系统安装Nvidia显卡驱动教程
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一、nvidia显卡安装

1. 检查驱动
   nvidia-smi
2. 更新系统
   sudo apt update && sudo apt upgrade -y
3. 检查可用的NVIDIA驱动
   ubuntu-drivers devices
4. 安装驱动
   自动安装推荐驱动：sudo ubuntu-drivers autoinstall
   手动安装特定版本：sudo apt install -y nvidia-driver-550
5. 重启系统
   sudo reboot
6. 验证驱动安装
   nvidia-smi

二、CUDA安装

官方教程链接：https://developer.nvidia.com/cuda-downloads?target_os=Linux&target_arch=x86_64&Distribution=Ubuntu&target_version=22.04&target_type=deb_local

CUDA 12.8版本示例，后续版本需要更新12.8为对应版本

1. wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/x86_64/cuda-ubuntu2204.pin
2. sudo mv cuda-ubuntu2204.pin /etc/apt/preferences.d/cuda-repository-pin-600
3. wget https://developer.download.nvidia.com/compute/cuda/12.8.0/local_installers/cuda-repo-ubuntu2204-12-8-local_12.8.0-570.86.10-1_amd64.deb
4. sudo dpkg -i cuda-repo-ubuntu2204-12-8-local_12.8.0-570.86.10-1_amd64.deb
5. sudo cp /var/cuda-repo-ubuntu2204-12-8-local/cuda-*-keyring.gpg /usr/share/keyrings/
6. sudo apt-get update
7. sudo apt-get -y install cuda-toolkit-12-8
8.更新环境变量
echo 'export PATH=/usr/local/cuda-12.8/bin${PATH:+:${PATH}}' >> ~/.bashrc
source ~/.bashrc
9. 查看版本
nvcc -V