linux 挂载光盘:mount: you must specify the filesystem type
尝试挂载光盘镜像时出现mount: you must specify the filesystem type
[root@primary dev]# mount /dev/cdrom /mnt/cdrom
mount: you must specify the filesystem type
处理方法：
虚拟机－〉setting->cd/dvd－〉device status-.connected前面的勾打上
