本地yum源配置方法
备份/etc/yum.repos.d中的文件
cd /etc/yum.repos.d
touch CentOS-Base.repo
vim CentOS-Base.repo
mnt /dev/cdrom /mnt/cdrom 挂载镜像文件
[BaseOS]
name=CentOS-BaseOS
baseurl=file:///mnt/cdrom/BaseOS
gpgcheck=0
enabled=1
[APP]
name=CentOS-APP
baseurl=file:///mnt/cdrom/AppStream
gpgcheck=0
enabled=1
原文:https://www.cnblogs.com/jet-chen/p/13041668.html