I'm feeling a bit befuddled here.  How can I access the
Iomega drive on my i386 NetBSD 1.4.2 machine?

Am I missing a driver or something?

I can see it at boot:

Aug 17 13:37:50 host /netbsd: atapibus0 at pciide0 channel 1
Aug 17 13:37:50 host /netbsd: cd0 at atapibus0 drive 0: <CRD-8482B, , 1.05> type 5 cdrom removable
Aug 17 13:37:50 host /netbsd: cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2
Aug 17 13:37:50 host /netbsd: sd0 at atapibus0 drive 1: <IOMEGA  ZIP 250       ATAPI, , 51.G> type 0 direct removable
Aug 17 13:37:50 host /netbsd: sd0: 239MB, 239 cyl, 64 head, 32 sec, 512 bytes/sect x 489532 sectors
Aug 17 13:37:50 host /netbsd: sd0: drive supports PIO mode 3, DMA mode 0

But I cannot create a filesystem on the disk:

host# newfs -m 1 /dev/sd0a 
newfs: /dev/sd0a: open: Device not configured

I must be missing something incredibly stupid.  How do I 
"configure" the device?

Thanks in advance for any enlightening insight.

Nancy