测试通过：redhat/centos 6.5, 6.6, 7.2 ■准备操作系统iso文件，mount到/mnt/iso mount -o loop /soft/CentOS-6.5-x86_64-bin-DVD1.iso /mnt/iso ■屏蔽默认配置目录/etc/yum.repos.d mv /etc/yum.repos.d /etc/yum.repos.d.old ■修改/etc/yum.conf，添加文件位置，并启用enabled [server] name=server baseurl=file:///…