Question on the images in /miniroot

[<dross00%hotmail.com@localhost>]

I'm going to be installing NetBSD on a TT030 a little later this week. 
After reading through the install doc, I'm still unclear on the differences 
between the three filesystem images (miniroot.fs, prepare.fs, sysinst.fs).

I'm guessing that I first boot off of miniroot.fs and then I'll be prompted 
for the other two as necessary.  Is this correct?

It's also unclear to me if the boot floppy supports the Riebl NIC so I can 
install off the net, or if I'll need to go find a SCSI CD-ROM drive to 
install from.

Sure I could find out by experimentation but I'd just like to save a little 
time.  =)

David Ross
dross%pobox.com@localhost