[Info-vax] Migrated VMS 5.X to simh - TCPWare error

gregor.oelze gregor.oelze at gmail.com
Thu Feb 17 12:14:47 EST 2011


Hello there,

once upon a time, there was a VAX 3100 running VMS 5.1 until these
days but then the hardware crashed. We managed to attach the harddrive
(400MB-SCSI) to a random

linux computer and made a dump of the harddrive with dd. At first we
just wanted to recover the files, but by the time we were searching
for a way to mount it, we

found the solution to emulate the VAX Hardware, using simh for linux.

So we bought a new computer, installed the latest server(x64) version
of ubuntu, installed simh from the current repositories of ubuntu and
copy'n'pasted the

configuration file (vms.ini) from a tutorial that we found in the www:

(http://www.wherry.com/gadgets/retrocomputing/vax-simh.html). After
renaming the .dd file in a .dsk file, we bootet up simh and it worked.
So we have a runnin

machine with ethernet support.

But: We cant get the TCPWare TCP-IP Stack to run on the simulated vax.
The goal is to communicate with a GenRad Testappliance which is
running fine in a BNC-Network.

There are some scripts in the VMS System !ftp which automatically
initiates a ftp-connection to the Genrad-Machine-but since the tcp-
stack isnt running-its not

working. Note: The Network is fine. We can access the Genrad-Machine
with the Ubuntu Host with a PCI BNC-Nic successfully.

The error, which appears after booting the virtual Vax is:

---|
SNIP|---------------------------------------------------------------------------------------

%STARTNET-F-ERROR, error during execution (NETCU START/IP SVA-0
192.9.201.130 /FLAGS=NOTRAILERS)
-STARTNET-I-SHUTNET, shutting down TCPware ...

%SET-I-INTSET, login interactive limit = 64, current interactive value
= 0
  17-FEB-2011 14:15:35
  SYSTEM       job terminated at 17-FEB-2011 14:15:37.82

  Accounting information:
  Buffered I/O count:            1605         Peak working set
size:     690
  Direct I/O count:               787         Peak page file
size:      3447
  Page faults:                   8171         Mounted
volumes:             0
  Charged CPU time:           0 00:00:05.09   Elapsed time:     0
00:00:10.09

---|
SNIP|---------------------------------------------------------------------------------------

The IP-Address of the GenRad machine: 192.9.201.131 the former ip of
the VAX: 192.9.201.130-the IP of the Ubuntu-machine: 192.9.201.130.

The vms.ini file:

---|SNIP|--------------------------
set cpu 32m
set tto 7b
set tti 7b
set cr dis
set lpt dis
set rl dis
set rq0 ra81
att rq0 vms2.dsk
set rq1 dis
set rq2 dis
set rq3 dis
set ry dis
set ts dis
set tq tk50
att tq0 tape.tap
set tq1 dis
set tq2 dis
set tq3 dis
set xq enabled
set xq type=DEQNA
set xq mac=00-4f-49-03-1a-93
att xq eth1
;set console telnet=23
;att nvr vms.nvr
;dep bdr 0
boot cpu
---|SNIP|--------------------------

Simh says that the second nic, was attached properly. But with, or
without the right network configuration, the error message, mentioned
above is appearing at

startup.

Our best guess at the moment is, that the System is refering to paths
which dont exist anymore. The 400MB drive used to be DKA0 , but the
simh-hdd is recognized as

DUA0. Could it be, that the system should be "reroutet" internally to
the new HDD-Device name.

If we can't get the internal TCPIP communication to run - is there a
way to get binary files out of the simh-simulated vms system? I read
about kermit, enabled

telnet in simh, started the kermit-server in vms and typed "telnet
127.0.0.1" on c-kermit on the ubuntu-machine - but the connection
could not be established.

So. It would be great if you could give me/us some points where we
cant start-because I am not really used to the VMS System at all (even
if I can now "browse"

through the file-system, edit and show files" - and understand the
help system).

best regards

Anaxagoras
aka. Gregor Oelze




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