I have some questions and an error I need help with..

first question: I am installing NetBSD on an old compaq laptop (233mhz/32mb ram)
and it has a swappable cd/floppy drive ( both cannot be in at the same time )

I was wondering how I would get the install to work? as it says after the second boot floppy is done, specify the CD drive with the NetBSD install cd in it.

now the error, first boot floppy ran fine, and said insert second boot floppy, I did so, and it started going through stuff and then it stopped at this..

uvm_fault(0xc0634ee0, 0x0, 0, 1) -> e
kernal: page fault trap, code=0
Stopped in pid 0 (swapper) at 0xc02e908a: movl 0x14(%edx).%eax

any help would be appreciated, thanks.