[Simh] Netbooting the SIMH VAX emulator

[Joel Heikkila]

> I know the netboot bootloader was broken for a while, but I'm sure I
> netbooted a 4000/90 using the 6.0 bootloader. Its *possible* it was
> fixed sometime after 6.0 so it could have been in 6.1. Do you get the
> same error trying the 6.1 bootloader?

With the 6.1 bootloader I'm not getting anywhere.

The emulator spits out
>>>b xqa0
(BOOT/R5:0 XQA0
  2..
-XQA0
  1..0..
HALT instruction, PC: 00005201 (HALT)

(Some whitespace removed).  mopd with the -d flag shows:

MOP RC 802.3 8:0:2b:aa:bb:cc   > ab:0:0:2:0:0      len   45 code 07 SID
MOP RC 8:0:2b:aa:bb:cc   > ab:0:0:2:0:0      len   37 code 07 SID
MOP DL 802.3 8:0:2b:aa:bb:cc   > ab:0:0:1:0:0      len   47 code 08 RPR
MOP DL 802.3 1c:6f:65:af:9:ba  > 8:0:2b:aa:bb:cc   len    9 code 03 ASV
MOP DL 802.3 8:0:2b:aa:bb:cc   > 1c:6f:65:af:9:ba  len   47 code 08 RPR
MOP DL 802.3 1c:6f:65:af:9:ba  > 8:0:2b:aa:bb:cc   len   14 code 02 MLD
MOP DL 802.3 8:0:2b:aa:bb:cc   > 1c:6f:65:af:9:ba  len   11 code 0a RML
MOP DL 802.3 1c:6f:65:af:9:ba  > 8:0:2b:aa:bb:cc   len   40 code 14 PLT
MOP DL 802.3 8:0:2b:aa:bb:cc   > 1c:6f:65:af:9:ba  len   11 code 0a RML

and that's it.  I'm using this file
http://mirror.csclub.uwaterloo.ca/NetBSD/NetBSD-6.1/vax/installation/netboot/boot

This configuration still works with the 1.5.2 bootloader.
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