armbian常见的镜像源配置
清华大学镜像站：
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ buster main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-updates main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-backports main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian-security/ buster/updates main contrib non-free中科大镜像站：
deb https://mirrors.ustc.edu.cn/debian/ buster main contrib non-free
deb https://mirrors.ustc.edu.cn/debian/ buster-updates main contrib non-free
deb https://mirrors.ustc.edu.cn/debian/ buster-backports main contrib non-free
deb https://mirrors.ustc.edu.cn/debian-security/ buster/updates main contrib non-free阿里云镜像站：
deb http://mirrors.aliyun.com/debian/ buster main contrib non-free
deb http://mirrors.aliyun.com/debian-security buster/updates main
deb http://mirrors.aliyun.com/debian/ buster-updates main contrib non-free
deb http://mirrors.aliyun.com/debian/ buster-backports main contrib non-free上海交大镜像站：
deb https://mirror.sjtu.edu.cn/debian/ buster main contrib non-free
deb https://mirror.sjtu.edu.cn/debian/ buster-updates main contrib non-free
deb https://mirror.sjtu.edu.cn/debian/ buster-backports main contrib non-free
deb https://mirror.sjtu.edu.cn/debian-security/ buster/updates main contrib non-free