Ubuntu 手动替换镜像源

手动替换Ubuntu 镜像源

1.备份默认镜像源

  # 备份默认镜像源，/etc/apt/sources.list 文件
  sudo mv /etc/apt/sources.list sources.lise.bak

2. 编写新的镜像源

  sudo vi /etc/apt/sources.list

1. 阿里源（ubuntn 20.4）

   deb https://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
   deb-src https://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
   
   deb https://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
   deb-src https://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
   
   deb https://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
   deb-src https://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
   
   # deb https://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
   # deb-src https://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
   
   deb https://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
   deb-src https://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
   
   

2. 阿里源（ubuntu 22.4）

   将20.4 的focal 换成 jammy 即可

3. 执行更新

   sudo apt-get update
   sudo apt-get upgrade