On Tue, Aug 17, 2021, 6:46 AM Dennis Grevenstein via cctech < cct...@classiccmp.org> wrote:
> Bill Gunshannon wrote: > > > > With 3.1 available why would you want to run 2.0? Someone mentioned > > a 4.0. I don't remember there ever being anything after 3.1 (promised, > > but never saw it delivered) Would be fun to look at. Yea. I've not seen anything survive on any of the abandonware sites. But another way to ask: what is fixed between 2.0 and 3.1 that prompts Bill to ask me why I'd want 2.0 like it was nuts... But I suspect > > anything beginning with 4 is actually Ultrix-32 which I think went as > > far as 4.5. > > That seems likely, because AFAIR Ultrix-11 never got past 3.X. > In any way I would like to point out that Ultrix-11 and Ultrix-32 are > completely different: Ultrix-11 based on V7 (+addons) and Ultrix-32 > based on 4.2BSD (+addons). > Having looked at the sources to both and running diffs with tuhs, I can confirm this is the case. And ultrix-32 had different version numbers than ultrix-11. But the vax and mips versions shared the same sources as far as I can tell (though I don't know if it is common ancestor or operationally the same repo). Also, the addons to ultrix-11 include BSD networking. It has the feel of 2.9BSD with a more polished installer and sysgen (alien name in unix world, but common for DEC OSes). Warner I actually still have Ultrix-32 3.1 running on a DECstation. It really > is nothing like running Ultrix-11 3.1, which I did many years ago. > > Dennis >