#deb http://mirrors.aliyun.com/debian/ buster main non-free contrib
#deb-src http://mirrors.aliyun.com/debian/ buster main non-free contrib
#deb http://mirrors.aliyun.com/debian-security buster/updates main
#deb-src http://mirrors.aliyun.com/debian-security buster/updates main
#deb http://mirrors.aliyun.com/debian/ buster-updates main non-free contrib
#deb-src http://mirrors.aliyun.com/debian/ buster-updates main non-free contrib
#deb http://mirrors.aliyun.com/debian/ buster-backports main non-free contrib
#deb-src http://mirrors.aliyun.com/debian/ buster-backports main non-free contrib

# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释
deb https://mirrors.bfsu.edu.cn/debian/ bullseye main contrib non-free
# deb-src https://mirrors.bfsu.edu.cn/debian/ bullseye main contrib non-free
deb https://mirrors.bfsu.edu.cn/debian/ bullseye-updates main contrib non-free
# deb-src https://mirrors.bfsu.edu.cn/debian/ bullseye-updates main contrib non-free

deb https://mirrors.bfsu.edu.cn/debian/ bullseye-backports main contrib non-free
# deb-src https://mirrors.bfsu.edu.cn/debian/ bullseye-backports main contrib non-free

deb https://mirrors.bfsu.edu.cn/debian-security bullseye-security main contrib non-free
# deb-src https://mirrors.bfsu.edu.cn/debian-security bullseye-security main contrib non-free
deb http://httpredir.debian.org/debian/ bullseye main contrib non-free