Debian12 sources.list换源

/etc/apt/sources.list

deb http://mirrors.ustc.edu.cn/debian stable main contrib non-free non-free-firmware

# deb-src http://mirrors.ustc.edu.cn/debian stable main contrib non-free non-free-firmware

deb http://mirrors.ustc.edu.cn/debian stable-updates main contrib non-free non-free-firmware

# deb-src http://mirrors.ustc.edu.cn/debian stable-updates main contrib non-free non-free-firmware

# deb http://mirrors.ustc.edu.cn/debian stable-proposed-updates main contrib non-free non-free-firmware

# deb-src http://mirrors.ustc.edu.cn/debian stable-proposed-updates main contrib non-free non-free-firmware

# deb http://security.debian.org bookworm-security main contrib

deb http://mirrors.ustc.edu.cn/debian-security/ stable-security main non-free contrib

# deb-src http://mirrors.ustc.edu.cn/debian-security/ stable-security main non-free contrib