Mounting a MS-DOS ZIP-disk ?

[Ingmar Sittl <pizzaboy%earthling.net@localhost>]

Hello everyone out there,
after installing NETBSD-1.3_ALPHA I was trying to mount an MS-Dos
formatted ZIP-disk, with which I transfer files from my Internet account
at the University, but when I try mount_msdos, I get an error message:
mount: no rdb found. Is there a different way to mount it, or did I just
get anything done wrong ?
My config:
Amiga 1200, Blizzard 1240/40, 32 MB Fast, IOmega SCSI ZIP, 850 MB IDE
HD, NETBSD-1.3_ALPHA
Bye,
Ingmar aka Pizzaboy