Centos7安装本地yum源 把光盘镜像文件复制到linux/tmp/目录下mount -t iso9660 /dev/cdrom /mnt/cdrom 2 mount -t iso9660 -o ro /tmp/CentOS-7-x86_64-DVD-1511.iso /mnt/cdrom 3 cp /mnt/cdrom/* -r /tmp/aaa/