简介
Ubuntu缺省的配置的源并不是国内的服务器，下载更新软件都比较慢，本文介绍如何设置源列表，选择比较快的源以节省下载时间。
配置步骤
1. 备份源列表
sudocp/etc/apt/sources.list/etc/apt/sources.list_backup
以阿里云更新服务器为例（从实际测试上结果分析，个人认为阿里云比网易和搜狐的服务器要快）：
deb http://mirrors.aliyun.com/ubuntu/ XXXXX main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ XXXXX-security main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ XXXXX-updates main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ XXXXX-proposed main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ XXXXX-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ XXXXX main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ XXXXX-security main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ XXXXX-updates main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ XXXXX-proposed main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ XXXXX-backports main restricted universe multiverse
根据具体使用的Ubuntu的版本不同，将上述文本中XXXXX替换为下面对应版本的字符串:
Utopic(14.10): utopic
Trusty(14.04): trusty
Precise(12.04): precise
Lucid(10.04): lucid
3. 刷新列表
sudoapt-getupdate
更新完毕后，再次安装源时，将从新服务器上下载源包。
4.示例
阿里云：
deb http://mirrors.aliyun.com/ubuntu trusty main restricted deb-src http://mirrors.aliyun.com/ubuntu trusty main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://mirrors.aliyun.com/ubuntu trusty-updates main restricted deb-src http://mirrors.aliyun.com/ubuntu trusty-updates main restricted ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also,please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://mirrors.aliyun.com/ubuntu trusty universe deb-src http://mirrors.aliyun.com/ubuntu trusty universe deb http://mirrors.aliyun.com/ubuntu trusty-updates universe deb-src http://mirrors.aliyun.com/ubuntu trusty-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team,and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also,please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://mirrors.aliyun.com/ubuntu trusty multiverse deb-src http://mirrors.aliyun.com/ubuntu trusty multiverse deb http://mirrors.aliyun.com/ubuntu trusty-updates multiverse deb-src http://mirrors.aliyun.com/ubuntu trusty-updates multiverse ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release,although it includes ## newer versions of some applications which may provide useful features. ## Also,please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. deb http://mirrors.aliyun.com/ubuntu trusty-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu trusty-backports main restricted universe multiverse deb http://security.ubuntu.com/ubuntu trusty-security main restricted deb-src http://security.ubuntu.com/ubuntu trusty-security main restricted deb http://security.ubuntu.com/ubuntu trusty-security universe deb-src http://security.ubuntu.com/ubuntu trusty-security universe deb http://security.ubuntu.com/ubuntu trusty-security multiverse deb-src http://security.ubuntu.com/ubuntu trusty-security multiverse
163：
add by Crifan Li 2013-08-08,added 163 source deb http://mirrors.163.com/ubuntu/ precise main restricted universe multiverse deb http://mirrors.163.com/ubuntu/ precise-security main restricted universe multiverse deb http://mirrors.163.com/ubuntu/ precise-updates main restricted universe multiverse deb http://mirrors.163.com/ubuntu/ precise-proposed main restricted universe multiverse deb http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ precise main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ precise-security main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ precise-updates main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ precise-proposed main restricted universe multiverse deb-src http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiverse
