本文参考 树莓派4B新手2023保姆级入门指南-更换国内APT源及全局更新-后篇-5 - 知乎

目录

1  树莓派系统情况

2  换源

---

1  树莓派系统情况

用的是树莓派4，系统情况如下

2  换源

sudo vim /etc/apt/source.list

屏蔽掉之前的所有内容（红框部分），填入新的内容（绿框部分），之前就屏蔽的东西不用动（蓝框部分）

绿框部分的内容如下 

deb https://mirrors.aliyun.com/debian/ bullseye main non-free contrib
deb-src https://mirrors.aliyun.com/debian/ bullseye main non-free contrib
deb https://mirrors.aliyun.com/debian-security/ bullseye-security main
deb-src https://mirrors.aliyun.com/debian-security/ bullseye-security main
deb https://mirrors.aliyun.com/debian/ bullseye-updates main non-free contrib
deb-src https://mirrors.aliyun.com/debian/ bullseye-updates main non-free contrib
deb https://mirrors.aliyun.com/debian/ bullseye-backports main non-free contrib
deb-src https://mirrors.aliyun.com/debian/ bullseye-backports main non-free contrib

保存退出后，输入 sudo apt-get update

换源完毕