? 1. 首先備份源列表

首先備份源列表
sudo cp /etc/apt/sources.list /etc/apt/sources.list_backup

? 2. 而后打開sources.list文件修改

sudo vim /etc/apt/sources.list

? 3. 用下面阿里原替換掉文件中所有的內容，保存編輯好的文件

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

? 4. 然后刷新列表，注意一定要執行刷新

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install build-essential

參考：http://blog.csdn.net/u010053463/article/details/49300625
?

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