[HECnet] Bringing up a MicroVAX 3100-80

[Supratim Sanyal]

On 3/31/20 12:25 AM, John H. Reinhardt wrote:
> On 3/30/2020 10:59 PM, Ray Jewhurst wrote:
>> I haven't tried burning but I used p7z through File Roller on a Linux 
>> Mint system. I have only used it as an image on Simh. I am not at my 
>> computer tonight but if you need it tomorrow I can get you a checksum 
>> on the unzipped image.
>>
>> Ray
>
>
> Okay. Maybe it's a difference between Linux and macOOS.  I downloaded 
> the file from WInWorldPC.  The actual file came from someone named 
> "Ricky" in Germany.  The file downloaded was "DEC VMS 5.5-2H4 (Jul 
> 1993) [VAX] (ISO).7z"  I ran it through "TheUnarchiver" and it 
> produced a folder with two files.  A txt file and "VMS 552h4 VAX.iso". 
> I tried burning that ISO file but then I get the disk image is invalid 
> error.
>
> I'll have to get a copy of SimH running on my Mac and see it it can 
> read the ISO.
>

Vaxhaven's AG-PXL1A-RE.iso is 236013792 bytes, Winworld's "VMS 552h4 
VAX.iso" is 205508764. Neither can be burnt by MacOS directly from the 
GUI. The following command line results in a "raw" burn (remove the 
-testburn switch to enable the laser).

$ hdiutil burn -testburn -imagekey diskimage-class=CRawDiskImage -speed 
2 Downloads/DEC\ VMS\ 5.5-2H4\ \(Jul\ 1993\)\ \[VAX\]\ \(ISO\)/VMS\ 
552h4\ VAX.iso

The Vaxhaven raw burn does not boot. I will try the Winworld version 
next. BUT, just to make sure the RRD42 is not the problem, here's a 
couple of questions about it:

1) I have connected the SCSI cable at the bottom and a terminator at the 
top. Is this okay?

2) When I insert the caddie in (with the CD in the caddy), the green 
light turns on for a few seconds and then turns off. Nothing else 
happens. MicroVAX comes back to ">>>" prompt after a few minutes, no 
other messages. Should I expect to hear some noises of the plate at the 
bottom of the caddie moving sideways to expose the CD to the laser, etc?

Also, even if I get to a point where I boot into standalone backup, how 
am I to fix the problem with DKA100's contiguity issue?

The previous owner said he had actual PAKs that he could not find, but 
are loaded in the LMF databse. I would very much like to at least be 
able to copy the LMF and am averse to reinstalling a fresh copy of VMS 
on DKA100 (everyobdy here will understand exactly why this is 
super-important now).






>>
>> On Mon, Mar 30, 2020, 11:53 PM John H. Reinhardt 
>> <johnhreinhardt at thereinhardts.org 
>> <mailto:johnhreinhardt at thereinhardts.org>> wrote:
>>
>>     On 3/30/2020 10:46 PM, Ray Jewhurst wrote:
>>     > I have tried both the VAXHaven and WinWorldPC copies of 5.5-2H4 
>> and I tend to agree that the VAXHaven one is corrupted (at least it's 
>> never worked for me). But the WinWorldPC copy works great. Also, 
>> corrupt is the MicroVMS 4.7 TK50 image on VAXHaven.
>>     >
>>     > Ray
>>
>>     The file I got from WinWorldPC came as a ".7z" archive.  and I 
>> unpacked it with "TheUnarchiver".  Does that match what you did? The 
>> file I get from that always gets the "Could not burn "VMS 552h4 
>> VAX.iso". The disk image is invalid." error from the Mac disk burn 
>> software.
>>
>>
>>     Did you do something differently?
>>
>>
>>     Thanks.
>>
>>
>>     John H. Reinhardt
>>
>
-- 
Supratim Sanyal, W1XMT
39.19151 N, 77.23432 W
QCOCAL::SANYAL via HECnet

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