思路: 把光盘内容全拷到linux本地上,用时再挂载那映像文件即可
dd if=/dev/cdrom of=/path/cdromfile.img
mount -o loop /path/cdromfile.img /path
把光盘文件复制到/tmp/cd目录下
umount /dev/cdrom
mkdir -p /mnt/cdrom
mkdir -p /tmp/cd
mount /dev/cdrom /mnt/cdrom
cp -rf /mnt/cdrom/* /tmp/cd
先mount光盘到某目录,然后cp拷贝么