Hello.  What am I missing?
I'm trying to get 1.1 running on a 3/280 but not having much luck.

 - sd0a and sd0g were newfs-ed under sunos4.1.
 - base.tar, etc.tar and netbsd-gen were manually unpacked and installed
   into the usual places on sd0a and sd0g   (no easy access to a tape
   drive nor to nfs boot to do the standard install paths, so everything
   was loaded/copied/etc from a 2nd disk (xy0) while running sunos4.1)
 - ran ./MAKEDEV in /mnt/dev while under sunos4.1

I've also tried manually installing the sun3/install/miniroot into sd0b
(dd bs=8k if=miniroot of=/dev/rsd0b) and then tried booting from that,
just like it says in INSTALL_txt, but that also stops with:
	panic: cannot mount root

Where'd I go wrong?  Should I try something else?
Thanks in advance. Paul Kern.

===== ===== ===== ===== ===== ===== ===== ===== ===== ===== ===== =====

	>b sd()netbsd -s
	Boot: sd(0,0,0)netbsd -s
	>> NetBSD ufsboot [$Revision: 1.2 $]
	631924+29992+95784+[53832+60330]=0xd4dba
	Starting program at 0x4000
	sun3_save_symtab:  found 53832 + 60330
	console on zs0 (ttya)
	[ preserving 114166 bytes of netbsd symbol table ]
	Copyright (c) 1982, 1986, 1989, 1991, 1993
		The Regents of the University of California.  All rights reserved.

	NetBSD 1.1 (GENERIC) #23: Tue Nov 28 16:18:05 EST 1995
	    gwr@venus:/home/gwr/src/sys/arch/sun3/compile/GENERIC
	Model: Sun 3/260
	real mem = 16760832
	avail mem = 14680064
	using 115 buffers containing 942080 bytes of memory
	cache enabled
	mainbus0 (root)
	obctl0 at mainbus0
	idprom0 at obctl0 hostid 0x1300...
	fpu0 at mainbus0 (mc68881)
	obmem0 at mainbus0
	bwtwo0 at obmem0 addr 0xff000000 (1152x900)
	obio0 at mainbus0
	zs0 at obio0 addr 0x20000 level 6 softpri 3
	zs1 at obio0 addr 0x0 level 6 softpri 3
	eeprom0 at obio0 addr 0x40000
	clock0 at obio0 addr 0x60000 level 5
	ie0 at obio0 addr 0xc0000 level 3 hwaddr 08:00:20:...
	vmes0 at mainbus0
	vmel0 at mainbus0
	rd0 at mainbus0
	rd1 at mainbus0
	root on sd0a
	swap on sd0b
	dump on sd0b
	panic: cannot mount root
	Stopped at      _Debugger+0x6:  unlk    a6
	db>