ubuntu 12.04 LTS 更换软件源

手动修改方式：

163源

deb http://mirrors.163.com/ubuntu/ precise main restricted
deb-src http://mirrors.163.com/ubuntu/ precise main restricted
deb http://mirrors.163.com/ubuntu/ precise-updates main restricted 
deb-src http://mirrors.163.com/ubuntu/ precise-updates main restricted 
deb http://mirrors.163.com/ubuntu/ precise universe 
deb-src http://mirrors.163.com/ubuntu/ precise universe 
deb http://mirrors.163.com/ubuntu/ precise-updates universe 
deb-src http://mirrors.163.com/ubuntu/ precise-updates universe 
deb http://mirrors.163.com/ubuntu/ precise multiverse 
deb-src http://mirrors.163.com/ubuntu/ precise multiverse 
deb http://mirrors.163.com/ubuntu/ precise-updates multiverse 
deb-src http://mirrors.163.com/ubuntu/ precise-updates multiverse 
deb http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiverse 
deb-src http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiverse 
deb http://mirrors.163.com/ubuntu/ precise-security main restricted 
deb-src http://mirrors.163.com/ubuntu/ precise-security main restricted 
deb http://mirrors.163.com/ubuntu/ precise-security universe 
deb-src http://mirrors.163.com/ubuntu/ precise-security universe 
deb http://mirrors.163.com/ubuntu/ precise-security multiverse 
deb-src http://mirrors.163.com/ubuntu/ precise-security multiverse 
deb http://extras.ubuntu.com/ubuntu precise main 
deb-src http://extras.ubuntu.com/ubuntu precise main

sohu源

deb http://mirrors.sohu.com/ubuntu/ precise main restricted 
deb-src http://mirrors.sohu.com/ubuntu/ precise main restricted 
deb http://mirrors.sohu.com/ubuntu/ precise-updates main restricted 
deb-src http://mirrors.sohu.com/ubuntu/ precise-updates main restricted 
deb http://mirrors.sohu.com/ubuntu/ precise universe 
deb-src http://mirrors.sohu.com/ubuntu/ precise universe 
deb http://mirrors.sohu.com/ubuntu/ precise-updates universe 
deb-src http://mirrors.sohu.com/ubuntu/ precise-updates universe 
deb http://mirrors.sohu.com/ubuntu/ precise multiverse 
deb-src http://mirrors.sohu.com/ubuntu/ precise multiverse 
deb http://mirrors.sohu.com/ubuntu/ precise-updates multiverse 
deb-src http://mirrors.sohu.com/ubuntu/ precise-updates multiverse 
deb http://mirrors.sohu.com/ubuntu/ precise-backports main restricted universe multiverse deb-src http://mirrors.sohu.com/ubuntu/ precise-backports main restricted universe multiverse deb http://mirrors.sohu.com/ubuntu/ precise-security main restricted deb-src http://mirrors.sohu.com/ubuntu/ precise-security main restricted 
deb http://mirrors.sohu.com/ubuntu/ precise-security universe 
deb-src http://mirrors.sohu.com/ubuntu/ precise-security universe 
deb http://mirrors.sohu.com/ubuntu/ precise-security multiverse 
deb-src http://mirrors.sohu.com/ubuntu/ precise-security multiverse 
deb http://extras.ubuntu.com/ubuntu precise main 
deb-src http://extras.ubuntu.com/ubuntu precise main

使用方式：

sudo cp /etc/apt/sources.list  /etc/apt/sources.list.old

sudo gedit /etc/apt/sources.list

然后把里面的列表替换成上面的列表，保存退出即可，修改完之后最好刷新一下系统的源：

sudo apt-get update 系统修改方式：

事实上，Ubuntu 已经收录了国内大部分知名的源，所以无需上网查找。

打开软件中心 – 编辑 – 软件源 ，然后点击源的列表 – 其他站点：

然后可以自己选择一个源，建议163源，比较稳定

选中后，点击右下角的选择服务器即可！