• 1. 首先备份源列表
首先备份源列表
sudo cp /etc/apt/sources.list /etc/apt/sources.list_backup
• 2. 而后打开sources.list文件修改
sudo vim /etc/apt/sources.list
• 3. 用下面阿里原替换掉文件中所有的内容，保存编辑好的文件
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，注意一定要执行刷新
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install build-essential
