[TUHS] Tracing origins of errno names/numbers

Larry McVoy lm at bitmover.com
Fri Apr 1 13:40:23 AEST 2011


If people wish to discuss RFS vs NFS, I was there are Sun when all this 
happened.

On Thu, Mar 31, 2011 at 08:26:04PM -0700, Michael Davidson wrote:
> Regardless of its technical merits (and I suspect that the implementation may have been pretty bad) RFS was doomed by AT&T's licensing policies and general ineptitude at marketing UNIX.  Similarly the widespread adoption of NFS was driven by the fact that Sun made it a de facto standard.
> 
> On Thu Mar 31st, 2011 7:51 PM PDT Nick Downing wrote:
> 
> >I also looked up EDOTDOT and found reference to RFS but not much info about
> >it.  Why was it not used?  Not reliable enough?  I have often thought that
> >the stateless, idempotent NFS protocol leaves a lot to be desired due to its
> >inability to implement unix semantics (as discussed in the wikipedia stub
> >article on RFS), has this been improved with NFS4?  Should RFS be revived
> >and used?  Some of its features sounded quite attractive (location
> >transparency, etc).  It does appear to have the ability to execute a program
> >remotely??  What happens with regard to PIDs, home directory etc in this
> >case?  Does anyone know?
> >cheers, Nick
> >
> >On Fri, Apr 1, 2011 at 1:23 PM, Michael Davidson <
> >michael_davidson at pacbell.net> wrote:
> >
> >> --- On *Thu, 3/31/11, Random832 <random832 at fastmail.us>* wrote:
> >>
> >>
> >> EDOTDOT caught my eye for some reason - maybe because it's the only one
> >> you attributed to linux in a long list of SVr1 ones... what were 72
> >> through 76 in SVR1?
> >>
> >>
> >> As the comment indicates, EDOTDOT came from "RFS" - the almost never used
> >> "remote file system" that was (optionally, I think) part of System V Release
> >> 3.
> >>
> >> As best I can recall, that is also where several of the other error numbers
> >> in the 72 - 79 range probably came from.
> >>
> >> Michael Davidson
> >>
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> >>
> >>
> 
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-- 
---
Larry McVoy                lm at bitmover.com           http://www.bitkeeper.com



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