更换yum源

1、备份yum源

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

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

yum clean all && yum makecache

更换阿里云epel源

备份epel源

1、备份(如有配置其他epel源)

mv /etc/yum.repos.d/epel.repo /etc/yum.repos.d/epel.repo.bak mv /etc/yum.repos.d/epel-testing.repo /etc/yum.repos.d/epel-testing.repo.bak

2、下载新repo 到/etc/yum.repos.d/

epel(RHEL 6)：
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo

epel(RHEL 7)：
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

3、之后运行yum makecache生成缓存

yum clean all && yum makecache

 

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