> 
> Is the RX50 drive supported *after* NetBSD is installed?  I just wanted
> to try making RX50 NetBSD boot/miniroot diskettes for others without a 
> means of creating them.  But when I try to dd to the raw floppy device
> (/dev/rra2c in this case), I get a bunch of 
> 
[...]
> which seems to suggest that the floppy isn't really supported beyond
> booting the system.
> 
Quite right; RX floppies does not work from NetBSD, but the standalone
routines can  use them. I haven't thought so much about it; and it is
probably something easy to fix. Feel free to look for it if you want.
I have written RX50 floppies from a PRO380 when I checked that it
worked with installation from them.

-- Ragge