Raspberry pie change source

First, judge the architecture and version , There are commands under the architecture , Enter a command to determine , Then judge your version , According to the version, Tsinghua source will have different editing contents , My tutorial is relatively simple , See the official website of Tsinghua source for details raspbian | Mirror station help | Tsinghua University open source software image station | Tsinghua Open Source Mirror

framework ：

• armhf

edition ：

• stretch
• buster
• bullseye

notes ：Raspbian The system is based on （ in order to armhf, It must also be based on ） At that time or testing Version of 7.0/wheezy, therefore Raspbian Not inclined to use stable/testing Represents version .

Instructions

First, through  uname -m  Determine the architecture of the system you use .

Choose your Raspbian Corresponding Debian edition :  Debian 9 (stretch) Debian 10 (buster) Debian 11 (bullseye) 

# armv7l  user ： edit  `/etc/apt/sources.list`  file , Delete all contents of the original file , Replace... With the following 
deb http://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/ bullseye main non-free contrib rpi
# deb-src http://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/ bullseye main non-free contrib rpi

# armv7l  If the user needs to open  multi-arch  Use  arm64  Software sources , Need to be in  `/etc/apt/sources.list`  Medium plus 
deb [arch=arm64] http://mirrors.tuna.tsinghua.edu.cn/raspbian/multiarch/ bullseye main

# aarch64  user ： edit  `/etc/apt/sources.list`  file , Replace... With the following ：
#  The source image is annotated by default to improve  apt update  Speed , If necessary, please cancel the comment 
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bullseye main contrib non-free
# deb-src 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-src 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-src 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
# deb-src https://mirrors.tuna.tsinghua.edu.cn/debian-security bullseye-security main contrib non-free

#  For both architectures , edit  `/etc/apt/sources.list.d/raspi.list`  file , Delete all contents of the original file , Replace... With the following ：
deb http://mirrors.tuna.tsinghua.edu.cn/raspberrypi/ bullseye main