yum安装软件失败,yum源没有要安装的软件

1.备份/etc/yum.repos.d/epel.repo文件

2.下载新repo 到/etc/yum.repos.d/

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

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

epel(RHEL 5)
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel.repo

3.编辑epel.repo文件,把里面的baseurl地址改成官网地址https://archivefedora.mirror.angkasa.id/epel/6/