[Simh] FW: VAX780 ini file ...

[Ian King]

Oops - repeating for the list -- Ian 
________________________________________
From: Ian King
Sent: Wednesday, January 13, 2010 10:26 PM
To: John Welsh
Subject: RE: [Simh] FW:  VAX780 ini file ...

FWIW, I have successfully booted a VAX780 emulator from an OpenVMS 7.2 distribution and completed installation.  While 6.2 was the last 'officially' supported version, later versions can boot.  However, VMS 8+ DID NOT SUPPORT VAX.  To my knowledge, VMS 7.3 was the last version built for VAX.  <sob....>

Yes, the VAX780 emulation needs VMB.exe, because it does not emulate the mechanism by which real VAX-11/780s boot: an RX01.  (I am not criticizing, only making note.)

We run OpenVMS 6.2 on our VAX-11/780-5: rosencrantz.pdpplanet.com, thanks to the generous grant of a license from HP.  -- Ian

________________________________________
From: simh-bounces at trailing-edge.com [simh-bounces at trailing-edge.com] On Behalf Of John Welsh [johnwelsh at optusnet.com.au]
Sent: Wednesday, January 13, 2010 8:22 PM
To: simh at trailing-edge.com
Subject: [Simh] FW:  VAX780 ini file ...

Thanks Jason,

        The ini file that I have shown below was correct.
        I was attempting to boot a VMS7.3 vdisk !!!!! ( VAX780 last supported
        VMS Version was V6.2). I built a fresh V6.2 vdisk using Charon VAX 3900
        Demo and this booted fine with SIMH VAX780. Yes it needs VMB.exe
        from the SIMH distribution in the same directory as the SIMH VAX780.exe.

        Now I will disable most of the devices and try to build again straight
        from CD as the VMS I built was for the VAX3900 with much more memory.

Best Regards,
John Welsh.
============


>>> On Thurs Jan 14, 2010 at 12:35 PM Sydney time,
>>> Jason Stevens[neozeed at gmail.com] wrote:
>>>
>>>you probably need the vmb.exe file in there too, as im sure VMS likes to
load from >>>that...
>>>
>>>I don't recall having anything 'special' to do otherwise....


>>On Wed, Jan 13, 2010 at 8:28 PM, John Welsh <johnwelsh at optusnet.com.au>
wrote:

>>Hi Guys,
>>       This may have been covered before here but does anyone have an
>>       example of a working VAX780.ini file for V8.3-1 that will boot VMS.
>>
>>       I am having difficulties with VMB.exe and "unable to locate boot
file"
>>       after starting the emulator. I would think it is trying to find
SYSBOOT.exe.
>>
>>       My ini file is very basic so far:
>>
>>       set rq0 ra82
>>       attach rq0 C:\SIMH-VAX780\dua0.dsk
>>       boot rq0
>>
>>       Possibly I need to extract the VMB.exe from my VMS image disk
>>       (dua0.dsk) and place that in the SIMH directory so that VMB then
knows where >>       to locate SYSBOOT.
>>
>>      Thanks in advance.
>>
>>    John Welsh.
>>    Sydney, Australia.
>>    ==============


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