"Raspberry Pi-raspbian" System Exchange Update source

A. Edit/etc/apt/source.list

Command: sudo nano/etc/apt/source.list

or sudo vim/etc/apt/source.list

or sudo gedit/etc/apt/source.list

Which command to use depends on which one you have installed and what you are familiar with

I use the nano command here to see Raspbian comes with the following source:

Then delete them all or comment them all out, continue ...

B. Adding a Xinyuan

Deb < source address > wheezy main contrib non-free

DEB-SRC < source address > wheezy main contrib non-free

Give me a chestnut:

The source address is Tsinghua Mirror: http://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/

Deb Http://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/wheezy main contrib Non-free

DEB-SRC Http://mirrors.tuna.tsinghua.edu.cn/raspbian/raspbian/wheezy Main contrib Non-free

Give the official image link: http://www.raspbian.org/RaspbianMirrors

Our Chinese Mirror:

C. Successful source change

The old routine, the first thing you have to do

sudo apt update

And then

sudo apt upgrade

Reference: https://www.ncnynl.com/archives/201607/255.html