更换CentOS7的下载源为阿里云

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安装epel

rpm -ivh http://mirrors.ustc.edu.cn/fedora/epel/7/x86_64/e/epel-release-7-7.noarch.rpm

1、备份

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

2、下载新的CentOS-Base.repo 到/etc/yum.repos.d/

CentOS 5

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo

CentOS 6

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

CentOS 7

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

3、之后运行yum makecache生成缓存

参考:

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

更换CentOS7的下载源为阿里云

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原文地址：http://www.cnblogs.com/itcomputer/p/5622026.html