[Simh] Problems install RSX-11M+ v4.6

[Johnny Billquist]

On 2017-05-07 23:01, Alan Frisbie wrote:
> On 05/07/2017 01:21 PM, Ray Jewhurst wrote:
>>
>> RSX-11M-PLUS V4.6  BL87 128.KW <http://128.KW>  System:"Baseline"
>>  >RED DU:=SY:
>>  >RED DU:=LB:
>>  >RED DU:=SP:
>>  >MOU DU0:"RSX11MPBL87"
>>  >@[2,54]BASTART.CMD
>> 12:46:19  *** GEN    Checkpoint space allocation failure
>> 12:46:19  *** GEN    Checkpoint space allocation failure
>> 12:46:19  *** GEN    Checkpoint space allocation failure
>> 12:46:19  *** GEN    Checkpoint space allocation failure
>> 12:46:19  *** GEN    Checkpoint space allocation failure
>> 12:46:19  *** GEN    Checkpoint space allocation failure
>
>
> This means that the disk you are running from (DU0:) does not
> have enough free space for RSX to allocate a checkpoint file.

Ah! Yes, of course. Thanks for that, Alan. Didn't even think about the 
possibility that the disk would be that small, since he was using MSCP.

Ray, start over, and create disk image files that are larger.

> Start over and tell SIMH to make DU0: (rq0) larger.   I would
> suggest at least 32 MB if you plan to do anything useful with
> the system.   Don't go above 500 MB, however, as the ODS-1 disk
> structures can't handle anything that large.

No, ODS-1 handles larger disks fine. The limit is 8G. If you go above 
that, there is no harm, but the disk will just be truncated to 8G 
anyway, so no point in going larger.
I would suggest something around 2G or so, and you're set for life.
(Personally I run with four 8G drives, but then again, I'm not exactly 
normal when it comes to RSX...)

	Johnny

-- 
Johnny Billquist                  || "I'm on a bus
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