ubuntu16.04换源

写在前面：本文摘录自网上，经过验证，大胆使用。

一、ubuntu16.04更换国内源

1.备份原始源文件source.list

桌面打开终端，执行命令：sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak

2.修改源文件source.list

（1）终端执行命令：sudo chmod 777 /etc/apt/sources.list 更改文件权限使其可编辑；

（2）执行命令：sudo gedit /etc/apt/sources.list 打开文件进行编辑；

（3）删除原来的文件内容，复制下面的任意一个到其中并保存（常用的是阿里源和清华源，推荐阿里源）；

阿里源：

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

 

3.更新

sudo apt-get update