打开 http://mirrors.kernel.org/fedora-epel/ Index of /fedora-epel/
../ 4/ 11-Apr-2017 15:28 - 4AS/ 11-Apr-2017 15:28 - 4ES/ 11-Apr-2017 15:28 - 4WS/ 11-Apr-2017 15:28 - 5/ 11-Apr-2017 15:31 - 5Client/ 11-Apr-2017 15:31 - 5Server/ 11-Apr-2017 15:31 - 6/ 26-Oct-2017 09:49 - 6Server/ 26-Oct-2017 09:49 - 7/ 26-Oct-2017 00:25 - 7Server/ 26-Oct-2017 00:25 - testing/ 30-Aug-2014 16:49 - RPM-GPG-KEY-EPEL 03-Mar-2007 14:11 1698 RPM-GPG-KEY-EPEL-4 03-Mar-2007 14:11 1698 RPM-GPG-KEY-EPEL-5 03-Mar-2007 14:11 1698 RPM-GPG-KEY-EPEL-6 12-May-2010 01:25 1649 RPM-GPG-KEY-EPEL-6Server 12-May-2010 01:25 1649 RPM-GPG-KEY-EPEL-7 20-Jun-2014 18:54 1662 RPM-GPG-KEY-EPEL-7Server 20-Jun-2014 18:54 1662 epel-release-latest-6.noarch.rpm 05-Nov-2012 15:31 14K epel-release-latest-7.noarch.rpm 02-Oct-2017 17:52 15K fullfilelist 25-Apr-2018 22:32 7M fullfilelist.AwiES3LjSB 26-Oct-2017 14:00 13M fullfilelist.KDUVzc9WPK 26-Oct-2017 13:40 13M fullfiletimelist-epel 25-Apr-2018 22:32 9M fullfiletimelist-epel.WaO7KUHvYz 26-Oct-2017 14:06 17M imagelist-epel 23-Nov-2016 18:20 0
二，选择合适的版本： 例如centos7
1，#rpm -Uvh http://mirrors.kernel.org/fedora-epel/epel-release-latest-7.noarch.rpm
#yum clean all 把之前的yum缓存清理一下
#yum makecache 生成新的缓存
#yum update 更新一下 这里可以执行更新一下，也可以不执行 不影响； 选择
2 安装epel repo源：aliyun epel(RHEL 7) wget -O /etc/yum.repos.d/epel.repo/http://mirrors.aliyun.com/repo/epel-7.repo epel(RHEL 6) wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo epel(RHEL 5) wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-5.repo
3.清理缓存 yum clean all
4.重新生成缓存 yum makecache yum update
