/etc/apt/sources.list 文件
deb http://mirrors.tuna.tsinghua.edu.cn/debian buster main contrib non-free
deb http://mirrors.tuna.tsinghua.edu.cn/debian-security/ buster/updates main contrib non-free
deb http://mirrors.tuna.tsinghua.edu.cn/debian buster-updates main contrib non-free
# Uncomment deb-src lines below then 'apt-get update' to enable 'apt-get source'
#deb-src http://mirrors.tuna.tsinghua.edu.cn/debian buster main contrib non-free
#deb-src http://mirrors.tuna.tsinghua.edu.cn/debian-security/ buster/updates main contrib non-free
#deb-src http://mirrors.tuna.tsinghua.edu.cn/debian buster-updates main contrib non-free
/etc/apt/sources.list.d/raspi.list 文件
deb http://mirrors.tuna.tsinghua.edu.cn/raspberrypi/ buster main ui
# Uncomment line below then 'apt-get update' to enable 'apt-get source'
#deb-src http://mirrors.tuna.tsinghua.edu.cn/raspberrypi/ buster main ui
