孤城浪子的地盘

把 /etc/apt/sources.list 里面的内容全部注释掉，增加以下 Debian 12 的软件源：

国内常见镜像站点

Debian全球镜像站列表：https://www.debian.org/mirror/list 。

下面列出国内常用的镜像站点及 /etc/apt/sources.list 中的具体对应内容：

阿里云镜像站

deb https://mirrors.aliyun.com/debian/ bookworm main non-free non-free-firmware contrib
deb-src https://mirrors.aliyun.com/debian/ bookworm main non-free non-free-firmware contrib
deb https://mirrors.aliyun.com/debian-security/ bookworm-security main
deb-src https://mirrors.aliyun.com/debian-security/ bookworm-security main
deb https://mirrors.aliyun.com/debian/ bookworm-updates main non-free non-free-firmware contrib
deb-src https://mirrors.aliyun.com/debian/ bookworm-updates main non-free non-free-firmware contrib
deb https://mirrors.aliyun.com/debian/ bookworm-backports main non-free non-free-firmware contrib 
deb-src https://mirrors.aliyun.com/debian/ bookworm-backports main non-free non-free-firmware contrib 

腾讯云镜像站

deb https://mirrors.tencent.com/debian/ bookworm main non-free non-free-firmware contrib 
deb-src https://mirrors.tencent.com/debian/ bookworm main non-free non-free-firmware contrib 
deb https://mirrors.tencent.com/debian-security/ bookworm-security main 
deb-src https://mirrors.tencent.com/debian-security/ bookworm-security main 
deb https://mirrors.tencent.com/debian/ bookworm-updates main non-free non-free-firmware contrib 
deb-src https://mirrors.tencent.com/debian/ bookworm-updates main non-free non-free-firmware contrib 
deb https://mirrors.tencent.com/debian/ bookworm-backports main non-free non-free-firmware contrib 
deb-src https://mirrors.tencent.com/debian/ bookworm-backports main non-free non-free-firmware contrib 

网易镜像站

deb https://mirrors.163.com/debian/ bookworm main non-free non-free-firmware contrib 
deb-src https://mirrors.163.com/debian/ bookworm main non-free non-free-firmware contrib 
deb https://mirrors.163.com/debian-security/ bookworm-security main 
deb-src https://mirrors.163.com/debian-security/ bookworm-security main 
deb https://mirrors.163.com/debian/ bookworm-updates main non-free non-free-firmware contrib 
deb-src https://mirrors.163.com/debian/ bookworm-updates main non-free non-free-firmware contrib 
deb https://mirrors.163.com/debian/ bookworm-backports main non-free non-free-firmware contrib 
deb-src https://mirrors.163.com/debian/ bookworm-backports main non-free non-free-firmware contrib 

华为镜像站

deb https://mirrors.huaweicloud.com/debian/ bookworm main non-free non-free-firmware contrib 
deb-src https://mirrors.huaweicloud.com/debian/ bookworm main non-free non-free-firmware contrib 
deb https://mirrors.huaweicloud.com/debian-security/ bookworm-security main 
deb-src https://mirrors.huaweicloud.com/debian-security/ bookworm-security main 
deb https://mirrors.huaweicloud.com/debian/ bookworm-updates main non-free non-free-firmware contrib 
deb-src https://mirrors.huaweicloud.com/debian/ bookworm-updates main non-free non-free-firmware contrib 
deb https://mirrors.huaweicloud.com/debian/ bookworm-backports main non-free non-free-firmware contrib 
deb-src https://mirrors.huaweicloud.com/debian/ bookworm-backports main non-free non-free-firmware contrib 

清华大学镜像站

deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm main contrib non-free non-free-firmware 
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm main contrib non-free non-free-firmware 
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware 
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware 
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-backports main contrib non-free non-free-firmware 
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-backports main contrib non-free non-free-firmware 
deb https://mirrors.tuna.tsinghua.edu.cn/debian-security bookworm-security main contrib non-free non-free-firmware 
deb-src https://mirrors.tuna.tsinghua.edu.cn/debian-security bookworm-security main contrib non-free non-free-firmware 

中科大镜像站

deb https://mirrors.ustc.edu.cn/debian/ bookworm main contrib non-free non-free-firmware 
deb-src https://mirrors.ustc.edu.cn/debian/ bookworm main contrib non-free non-free-firmware 
deb https://mirrors.ustc.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware 
deb-src https://mirrors.ustc.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware 
deb https://mirrors.ustc.edu.cn/debian/ bookworm-backports main contrib non-free non-free-firmware 
deb-src https://mirrors.ustc.edu.cn/debian/ bookworm-backports main contrib non-free non-free-firmware 
deb https://mirrors.ustc.edu.cn/debian-security/ bookworm-security main contrib non-free non-free-firmware 
deb-src https://mirrors.ustc.edu.cn/debian-security/ bookworm-security main contrib non-free non-free-firmware