# 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.tuna.tsinghua.edu.cn/debian/ jessie main contrib non-free # deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ jessie main contrib non-free deb https://mirrors.tuna.tsinghua.edu.cn/debian/ jessie-updates main contrib non-free # deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ jessie-updates main contrib non-free deb https://mirrors.tuna.tsinghua.edu.cn/debian/ jessie-backports main contrib non-free # deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ jessie-backports main contrib non-free deb https://mirrors.tuna.tsinghua.edu.cn/debian-security jessie/updates main contrib non-free # deb-src https://mirrors.tuna.tsinghua.edu.cn/debian-security jessie/updates main contrib non-free
恢复
/etc/apt/sources.list
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deb http://deb.debian.org/debian jessie main deb http://security.debian.org/debian-security jessie/updates main deb http://deb.debian.org/debian jessie-updates main