ubuntu 更换镜像源

• • ubuntu 更换镜像源

ubuntu 更换镜像源

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ubuntu20.04.2

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• 备份文件

  cd /etc/apt
  sudo cp sources.list sources.list.original
  

• 替换sources.list内容

  1. 替换为清华源

     清华源 镜像站使用帮助

     到上边的网站，根据ubuntu版本选择合适的内容替换

     # 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释
     deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
     # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
     deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
     # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
     deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
     # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
     deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
     # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
     
     # 预发布软件源，不建议启用
     # deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
     # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
     

• 刷新和更新

  sudo apt-get update
  sudo apt-get upgrade