原文参考:http://mirrors.aliyun.com/help/centos?spm=5176.bbsr150321.0.0.d6ykiD

    这里我下载的是 mini 版的 Centos 所以没有 wget 这里我用的是 curl

    1、备份

    1. 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

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

    或者

    1. curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo

    CentOS 6

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

    或者

    1. curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

    CentOS 7

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

    或者

    1. curl -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