Ubuntu更新源设置

编辑Ubuntu的源文件

#gedit /etc/apt/sources.list

清空该文件并加入：（国内网易更新源，速度快）

debhttp://mirrors.163.com/ubuntu/ precise main universe restricted multiverse

deb-srchttp://mirrors.163.com/ubuntu/ precise main universe restricted multiverse

debhttp://mirrors.163.com/ubuntu/ precise-security universe main multiverserestricted

deb-srchttp://mirrors.163.com/ubuntu/ precise-security universe main multiverserestricted

debhttp://mirrors.163.com/ubuntu/ precise-updates universe main multiverserestricted

debhttp://mirrors.163.com/ubuntu/ precise-proposed universe main multiverserestricted

deb-srchttp://mirrors.163.com/ubuntu/ precise-proposed universe main multiverserestricted

debhttp://mirrors.163.com/ubuntu/ precise-backports universe main multiverserestricted

deb-srchttp://mirrors.163.com/ubuntu/ precise-backports universe main multiverserestricted

deb-srchttp://mirrors.163.com/ubuntu/ precise-updates universe main multiverserestricted

然后#sudo apt-get update 命令,以后就可以在线更新或安装软件包了。