ISO image can be mounted by using:
mdconfig -a -t vnode -f image.iso -u 0
mdconfig configures and enables memory disks. -a attaches the disk, -t defines the type (in this case, vnode which means you can use -f option to specify a file as a backstore for this disk), and -u requests a specific unit number for device (md0 in this case).
mount -t cd9660 /dev/md0 /mnt
This part is pretty self-explanatory, mount it as any other regular device. You can unmount the image with
umount /mnt
and
mdconfig -d -u 0
-d detaches the memory disk, device unit 0 (-u 0).
The same can be done on Linux by using:
mount -o loop -t iso9660 image.iso /mnt
