yum 源配置
mkdir /mnt/iso
mount /dev/cdrom /mnt/iso
cd /etc/yum.repos.d/
touch iso.repo
vim iso.repo
配置文档cat iso.repo
[yumsrc]
name=iso source
baseurl=file:///mnt/iso
gpgcheck=0
enabled=1
启动yum源
yum clean all
yum repolist all
原文：https://www.cnblogs.com/zhmsos/p/14879167.html