ubuntu 19.10将系统下载配制成清华

系统：Ubuntu 19.10.0

清华源镜像配置信息网址：https://mirror.tuna.tsinghua.edu.cn/help/ubuntu/

操作：将ubuntu系统中的软件源配置文件是/etc/apt/sources.list，信息进行修改，

步骤如下：

1. step1：先获取root权限

   sudo -s

    

2. step2:备份原始的软件源配置文件/etc/apt/sources.list.bat

   cp /etc/apt/sources.list.bat /etc/apt/sources.list.bat/

    

3.  修改配置文件sources.list.bat

   vi sources.list.bat

    

4.  将里面的配置文件修改成：https://mirror.tuna.tsinghua.edu.cn/help/ubuntu/

# 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/ubuntu/ bionic main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-security main restricted universe multiverse

# 预发布软件源，不建议启用
# deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse

5.执行编辑，更新

sudo apt-get update