Debian 配置apt-get源为网络源

Debian 默认apt-get源为从cd介质安装

⒈备份官方默认更新源文件

cp /etc/apt/sources.list /etc/apt/sources.list.bak        备份官方更新源文件

⒉编辑

　　1.打开　　

vi /etc/apt/sources.list

　　2.清空内容

　　ESC后进入命令模式输入

:.,$d

　　也可以注释以下内容

# deb cdrom:[Debian GNU/Linux 10.7.0 _Buster_ - Official amd64 DVD Binary-1 20201205-11:17]/ buster contrib main

　　3.复制以下内容（清华大学镜像站）https://mirrors.tuna.tsinghua.edu.cn/help/debian/

# 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/ buster main contrib non-free
# deb-src 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-src 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-src 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
# deb-src https://mirrors.tuna.tsinghua.edu.cn/debian-security buster/updates main contrib non-free

　　4.保存

　　ESC后进入命令模式输入　　　