[Info-vax] OT: obscure PDP11 OSes (even more dinosaury)

[Jan-Erik Soderholm]

Johnny Billquist skrev den 2015-06-22 18:19:
> On 2015-06-22 17:51, Jan-Erik Soderholm wrote:
>> Browsing around in our development system, I found a MAR
>> file with the following as a comment at the top:
>>
>> ;
>> ; FUNCTIONAL DESCRIPTION:
>> ;
>> ; DOWN_LINE_LOAD.
>> ; THE ALLOCATED TT_LINE IS DEALLOCATED. A MAILBOX IS CREATED TO BE
>> ; USED TO COMMUNICATE WITH A SUBPROCESS, WHO TAKES CARE OF
>> ; THE COMMUNICATION WITH THE PDP-11/23 AND LOADS THE 11/23 WITH
>> ; A RSX-11/S SYSTEM...
>> ;
>>
>> So you could "load" a PDP with an RSX system over a serial line!?
>> And the VMS system must have had a RSX-11/S "image" available?
>>
>> Maybe I read to much into that comment, they might just be saying
>> that the PDP actualy is running a RSX-11/S system... :-)
>
> No, you understand this right. PDP-11s can downline load RSX-11S. RSX-11S
> is a diskless system that needs a host to boot from.
>
> The host can can be either RSX-11M, RSX-11M-PLUS or VMS.
>
> The loading is done with MOP, and can be done over serial lines using
> DDCMP, or over Ethernet.
>
>      Johnny
>

B.t.w, someone might recognise the writer of that MACRO source:

;
;       AUTHOR : Mikael Rolfhamre, DEC STO
;       DATE   : 13-MAY-1982 ( a Thursday )
;