Ubuntu更换国内镜像源

官方镜像文档
  阿里源
  清华源
  中科大源
  网易163源
   1 从根目次进入到sources.list的文件目次中

1. cd /etc/apt

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2 备份并更新sources.list

1. sudo cp sources.list sources.list.bak
2. sudo apt-get update

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3 更换国内源

3.1 直接更换

1. sudo sed -i 's@//.*archive.ubuntu.com@//mirrors.ustc.edu.cn@g' sources.list
2. sudo sed -i 's/security.ubuntu.com/mirrors.ustc.edu.cn/g' sources.list # 可选
3. sudo sed -i 's/http:/https:/g' sources.list # 使用HTTPS可以有效避免国内运营商的缓存劫持

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 3.2 手动更换

3.2.1 打开sources.list

1. sudo vim sources.list

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3.2.2 注释或删除官方源，并复制如下中科大源到文件中

1. # 默认注释了源码仓库，如有需要可自行取消注释
2. deb https://mirrors.ustc.edu.cn/ubuntu/ focal main restricted universe multiverse
3. # deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal main restricted universe multiverse
4. deb https://mirrors.ustc.edu.cn/ubuntu/ focal-security main restricted universe multiverse
5. # deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-security main restricted universe multiverse
6. deb https://mirrors.ustc.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
7. # deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
8. deb https://mirrors.ustc.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
9. # deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
10. # 预发布软件源，不建议启用
11. # deb https://mirrors.ustc.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse
12. # deb-src https://mirrors.ustc.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse

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3.2.3 按下Esc后输入:wq!保存

   若不利用sudo的话用:wq!保存时会出现/etc/apt/sources.list" E212: Can't open file for writing报错，利用如下下令保存并退出shell即可

1. :w !sudo tee % > /dev/null

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4 执行更新

1. sudo apt-get update && sudo apt-get upgrade

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5 其他国内源

   常用的Ubuntu版本代号，这里以Ubuntu20.04为例，别的版本直接更换版本代号即可
  Ubuntu 24.04：noble
  Ubuntu 22.04：jammy
  Ubuntu 20.04：focal
  Ubuntu 18.04：bionic
   5.1 阿里源

1. deb https://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
2. deb-src https://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
3. deb https://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
4. deb-src https://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
5. deb https://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
6. deb-src https://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
7. # deb https://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
8. # deb-src https://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
9. deb https://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
10. deb-src https://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse

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 5.2 清华源

1. # 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
2. deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse
3. # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse
4. deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
5. # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
6. deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
7. # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
8. deb http://security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
9. # deb-src http://security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
10. # 预发布软件源，不建议启用
11. # deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse
12. # # deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse

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 5.3 网易源

1. deb http://mirrors.163.com/ubuntu/ focal main restricted universe multiverse
2. deb http://mirrors.163.com/ubuntu/ focal-security main restricted universe multiverse
3. deb http://mirrors.163.com/ubuntu/ focal-updates main restricted universe multiverse
4. deb http://mirrors.163.com/ubuntu/ focal-proposed main restricted universe multiverse
5. deb http://mirrors.163.com/ubuntu/ focal-backports main restricted universe multiverse
6. deb-src http://mirrors.163.com/ubuntu/ focal main restricted universe multiverse
7. deb-src http://mirrors.163.com/ubuntu/ focal-security main restricted universe multiverse
8. deb-src http://mirrors.163.com/ubuntu/ focal-updates main restricted universe multiverse
9. deb-src http://mirrors.163.com/ubuntu/ focal-proposed main restricted universe multiverse
10. deb-src http://mirrors.163.com/ubuntu/ focal-backports main restricted universe multiverse

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