# 编辑 `/etc/apt/sources.list` 文件，删除原文件所有内容，用以下内容取代：

#debian10
deb http://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/ buster main non-free contrib
#deb-src http://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/ buster main non-free contrib

#根据自己的发行版debian11选择：
deb http://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/ bullseye main non-free contrib rpi

#debian12（armv7l）
deb https://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/ bookworm main non-free contrib rpi
# deb-src https://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/ bookworm main non-free contrib rpi

deb [arch=arm64] https://mirrors.tuna.tsinghua.edu.cn/raspbian/multiarch/ bookworm main

# 编辑 `/etc/apt/sources.list.d/raspi.list` 文件，删除原文件所有内容，用以下内容取代：

deb http://mirrors.tuna.tsinghua.edu.cn/raspberrypi/ buster main ui
or 
deb http://mirrors.tuna.tsinghua.edu.cn/raspberrypi/ bullseye main
or
deb https://mirrors.tuna.tsinghua.edu.cn/raspberrypi/ bookworm main