虚拟机更新为阿里数据源

阿里数据源官网

http://mirrors.aliyun.com/

a)

yum install wget

b) 帮助文档路径

http://mirrors.aliyun.com/help/centos

c)

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

d) 

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

e)

yum makecache