[TUHS] Can't load split I&D files (in one PDP-11/23 PLUS)

Lyle Bickley lbickley at bickleywest.com
Fri Jun 26 07:12:54 AEST 2009


On Thursday 25 June 2009, Wilko Bulte wrote:
> Quoting SPC, who wrote on Thu, Jun 25, 2009 at 08:57:47PM +0200 ..
> > Well, the matter is simple: I'm trying to install 2.11 BSD in one PDP-11/23
> > PLUS with 4MB of ram, and the 'restor' and 'icheck' utilities don't load in
> > he PDP, returning this message:
> > 
> >   "Can't load split I&D files"
> > 
> > I tried with the diverse distributions of Vtserver and diverse versions of
> > 'restor'. In the case of the 2.9BSD this don't happen but the utility can't
> > understand what is the 'vt' device.
> > 
> > Someone has encountered and solved this problem ?
> 
> I could be wrong, but I think the 11/23 is not a split ID CPU?

That's correct. The 11/23 supported 256K memory and separate Kernel and User but not separate
I&D.

An 11/73 does support separate I&D...

Regards,
Lyle

> 
> Wilko
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> 


-- 
Lyle Bickley
Bickley Consulting West Inc.
http://bickleywest.com
"Black holes are where God is dividing by zero"



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