Ubuntu14.04更新源

Ubuntu14.04更新源

Ubuntu14.04默认的源都是国外的，所以我们下载东西十分的慢，更新一下中国源，让下载速度可以更快，这里有两种方法更新源的方法，一种是图形界面操作，另一种是命令操作。

点击右上角的”搜索“图标，在搜索框中输入update，在显示的应用列表中，点击”Software&Updates（软件&更新）“。

在弹出的”Software&Updates“窗口中，选择”Ubuntu Software“，你可以看到”Download from（下载源）“是”Server for United States(美国服务器)“。点击”Server for United States“下拉菜单，选择”Other...（其他）“。

在弹出”Choose a Download Server（选择下载服务器）“窗口中向上拉，找到China（中国）,然后，选择中国的服务器，这里可以选择教育源，网易、阿里等等。（我在这里选的是163（网易）的），然后点击”Choose Server（选择服务）“按钮。

然后，弹出”Authenticate（认证）“窗口，输入系统密码（ubuntu上由于安全性安装软件，需要输入密码），然后点击”Authenticate（认证）“按钮。

此时，你会发现”Software&Updates“窗口中的”Download from（下载源）“已经变成你设置的中国源。点击”Close(关闭)“按钮。

然后，会弹出一个提示,大概意思是”安装软件和更新添加的源或修改源，必须要重新加载可用软件的信息“，点击”Reload（重载）“按钮。进入”Updating cache(更新缓存)“界面，等待更新完过后，下载源就真正变成中国的了。以后下载东西就更快了。

（1）首先备份官方源，以免设置错误可恢复。

（2）用编辑器打开/etc/apt/sources.list文件。

（3）删除原有的源，在编辑器中添加新源。如图所示：

（4）添加的源有很多，可根据自己的情况选择。

#163

deb http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse

deb http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse

deb http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse

deb http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse

deb http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse

deb-src http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse

deb-src http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse

deb-src http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse

deb-src http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse

deb-src http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse

#中科大

deb http://debian.ustc.edu.cn/ubuntu/ trusty main multiverse restricted universe

deb http://debian.ustc.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe

deb http://debian.ustc.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe

deb http://debian.ustc.edu.cn/ubuntu/ trusty-security main multiverse restricted universe

deb http://debian.ustc.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe

deb-src http://debian.ustc.edu.cn/ubuntu/ trusty main multiverse restricted universe

deb-src http://debian.ustc.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe

deb-src http://debian.ustc.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe

deb-src http://debian.ustc.edu.cn/ubuntu/ trusty-security main multiverse restricted universe

deb-src http://debian.ustc.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe

#sohu

deb http://mirrors.sohu.com/ubuntu/ trusty main restricted universe multiverse

deb http://mirrors.sohu.com/ubuntu/ trusty-security main restricted universe multiverse

deb http://mirrors.sohu.com/ubuntu/ trusty-updates main restricted universe multiverse

deb http://mirrors.sohu.com/ubuntu/ trusty-proposed main restricted universe multiverse

deb http://mirrors.sohu.com/ubuntu/ trusty-backports main restricted universe multiverse

deb-src http://mirrors.sohu.com/ubuntu/ trusty main restricted universe multiverse

deb-src http://mirrors.sohu.com/ubuntu/ trusty-security main restricted universe multiverse

deb-src http://mirrors.sohu.com/ubuntu/ trusty-updates main restricted universe multiverse

deb-src http://mirrors.sohu.com/ubuntu/ trusty-proposed main restricted universe multiverse

deb-src http://mirrors.sohu.com/ubuntu/ trusty-backports main restricted universe multiverse

#oschina

deb http://mirrors.oschina.net/ubuntu/ trusty main restricted universe multiverse

deb http://mirrors.oschina.net/ubuntu/ trusty-backports main restricted universe multiverse

deb http://mirrors.oschina.net/ubuntu/ trusty-proposed main restricted universe multiverse

deb http://mirrors.oschina.net/ubuntu/ trusty-security main restricted universe multiverse

deb http://mirrors.oschina.net/ubuntu/ trusty-updates main restricted universe multiverse

deb-src http://mirrors.oschina.net/ubuntu/ trusty main restricted universe multiverse

deb-src http://mirrors.oschina.net/ubuntu/ trusty-backports main restricted universe multiverse

deb-src http://mirrors.oschina.net/ubuntu/ trusty-proposed main restricted universe multiverse

deb-src http://mirrors.oschina.net/ubuntu/ trusty-security main restricted universe multiverse

deb-src http://mirrors.oschina.net/ubuntu/ trusty-updates main restricted universe multiverse

#北京交通大学

deb http://mirror.bjtu.edu.cn/ubuntu/ trusty main multiverse restricted universe

deb http://mirror.bjtu.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe

deb http://mirror.bjtu.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe

deb http://mirror.bjtu.edu.cn/ubuntu/ trusty-security main multiverse restricted universe

deb http://mirror.bjtu.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe

deb-src http://mirror.bjtu.edu.cn/ubuntu/ trusty main multiverse restricted universe

deb-src http://mirror.bjtu.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe

deb-src http://mirror.bjtu.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe

deb-src http://mirror.bjtu.edu.cn/ubuntu/ trusty-security main multiverse restricted universe

deb-src http://mirror.bjtu.edu.cn/ubuntu/ trusty-updates main multiverse

# 北京理工

deb http://mirror.bjtu.edu.cn/ubuntu/ precise main multiverse restricted universe

deb http://mirror.bjtu.edu.cn/ubuntu/ precise-backports main multiverse restricted universe

deb http://mirror.bjtu.edu.cn/ubuntu/ precise-proposed main multiverse restricted universe

deb http://mirror.bjtu.edu.cn/ubuntu/ precise-security main multiverse restricted universe

deb http://mirror.bjtu.edu.cn/ubuntu/ precise-updates main multiverse restricted universe

deb-src http://mirror.bjtu.edu.cn/ubuntu/ precise main multiverse restricted universe

deb-src http://mirror.bjtu.edu.cn/ubuntu/ precise-backports main multiverse restricted universe

deb-src http://mirror.bjtu.edu.cn/ubuntu/ precise-proposed main multiverse restricted universe

deb-src http://mirror.bjtu.edu.cn/ubuntu/ precise-security main multiverse restricted universe

deb-src http://mirror.bjtu.edu.cn/ubuntu/ precise-updates main multiverse restricted universe

restricted universe

#上海交大

deb http://ftp.sjtu.edu.cn/ubuntu/ trusty universerestricted multiverse maindeb http://ftp.sjtu.edu.cn/ubuntu/ trusty-securityuniverse restricted multiverse maindeb http://ftp.sjtu.edu.cn/ubuntu/ trusty-updatesuniverse restricted multiverse maindeb http://ftp.sjtu.edu.cn/ubuntu/ trusty-proposeduniverse restricted multiverse maindeb http://ftp.sjtu.edu.cn/ubuntu/ trusty-backportsuniverse restricted multiverse main

#阿里云服务器

deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse

deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse

deb-src http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse

（5）更新。