[Info-vax] Alternative _legal_ operating systems for VAX ?

[Bill Gunshannon]

On 1/2/22 1:36 PM, Johnny Billquist wrote:
> On 2022-01-02 16:11, Arne Vajhøj wrote:
>> On 1/2/2022 3:39 AM, Simon Clubley wrote:
>>> Before deleting my simh instances, I thought I would look for
>>> other operating systems which ran on VAX and try them out.
>>>
>>> The only current one I have found is NetBSD (which certainly has
>>> a _very_ retro 1980s Unix feel to it. :-)).
>>>
>>> OpenBSD dropped VAX as an architecture a number of years ago.
>>>
>>> Does anyone know of any other operating systems (including any
>>> experimental ones) for VAX that are still legal to run under simh ?
>>>
>>> If so, do you have any links to them ?
>>
>> Wikipedia lists BSD 4.3, NetBSD, OpenBSD and something called Xinu
>> as open source options for VAX.
> 
> As far as I know Mt. Xinu (read it backwards? ;-) ) wasn't free. I ran 
> it on an 8650 for a while. I think I still know where the manuals are, 
> but I'm unsure if I know where the tapes are...

Mt. Xinu and Xinu are not the same thing.  Mt. Xinu is a commercial
version of BSD.  Xinu is  an OS developed by Doug Comer.


bill