估计大部分人都用Windows操作系统，少部分人用Mac OS系统。但今天要分享的是Linux 的一个发行版Ubuntu。

Ubuntu（友帮拓、乌班图）是一个以桌面应用为主的Linux操作系统，Ubuntu基于Debian发行版和GNOME桌面环境，而从11.04版起，Ubuntu发行版放弃了Gnome桌面环境，改为Unity，与Debian的不同在于它每6个月会发布一个新版本。

下载地址：

桌面版X86：http://pan.baidu.com/s/1mgsqXAw

服务器版X86：http://pan.baidu.com/s/1sj0UqWP

桌面版X64：http://pan.baidu.com/s/1jGorplW

服务器版X64：http://pan.baidu.com/s/1bnnjFf5

另附Ubuntu 14.10国内源：

请把 /etc/apt/sources.list打开，将下面这段文字粘贴进去

sohu源

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

aliyun源

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

163源

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