When mounting the CD-ROM drive, the following error is displayed: you must specify the filesystem type

[root@carlton ]# mount /dev/cdrom /mnt

mount: you must specify the filesystem type

Treatment method:

Check the box in front of virtual machine –> setting – &> CD/DVD –> device status -. Connected

If it is a physical machine:

Run the command LS dev | grep CDROM

Or LS dev | grep SR

See if there is cdrom1 or Sr1