AI摘要

本文介绍了Ubuntu系统更换国内软件源的方法。通过编辑`/etc/apt/sources.list`文件，将阿里云镜像源地址添加至首行，并执行`apt-get update`和`apt-get upgrade`命令更新缓存与系统，从而提升软件包的下载与更新速度。

此内容根据文章生成，仅用于文章内容的解释与总结

ubuntu apt-get更换国内源

1.修改sources.list配置文件

vi /etc/apt/sources.list

在首行添加阿里云源

deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse

保存退出

2.更新缓存

apt-get update
apt-get upgrade