一、不多废话, 直接复制即可, 注意自己的系统版本

本文使用的是Debian 11(bullseye)其他版本自己去官网选择清华源树莓派官网

1. 备份相关文件

   sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak
   

   sudo cp /etc/apt/sources.list.d/raspi.list /etc/apt/sources.list.d/raspi.list.bak
   

2. 编辑 /etc/apt/sources.list 文件

   sudo nano /etc/apt/sources.list
   

   将原内容注释并复制一下内容

   deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bullseye main contrib non-free
   deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bullseye-updates main contrib non-free
   deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bullseye-backports main contrib non-free
   deb https://mirrors.tuna.tsinghua.edu.cn/debian-security bullseye-security main contrib non-free
   

   ctrl+o, 然后回车, 最后ctrl+x退出即可

3. 编辑 /etc/apt/sources.list.d/raspi.list 文件

   sudo nano /etc/apt/sources.list.d/raspi.list
   

   将原内容注释并复制一下内容

   deb http://mirrors.tuna.tsinghua.edu.cn/raspberrypi/ bullseye main
   

   ctrl+o, 然后回车, 最后ctrl+x退出即可

4. 更新

   sudo apt-get update
   

   sudo apt-get upgrade
   

5. 完毕