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From: randy@umn-cs.UUCP (Randy Orrison)
Newsgroups: comp.unix.wizards
Subject: Re: multiple-machine executables for Suns?
Message-ID: <2035@umn-cs.UUCP>
Date: Tue, 18-Aug-87 12:59:00 EDT
Article-I.D.: umn-cs.2035
Posted: Tue Aug 18 12:59:00 1987
Date-Received: Fri, 21-Aug-87 07:20:31 EDT
References: <1853@megaron.arizona.edu> <639@ima.ISC.COM> <1080@ttidca.TTI.COM> <1931@umn-cs.UUCP> <36b9fbe5.c366@apollo.uucp>
Reply-To: randy@umn-cs.UUCP (Randy Orrison)
Organization: UofM Math Department
Lines: 35
Keywords: apollos, environment

In article <36b9fbe5.c366@apollo.uucp> mishkin@apollo.UUCP (Nathaniel Mishkin) writes:
-In article <1931@umn-cs.UUCP> randy@umn-cs.UUCP (Randy Orrison) writes:
->	/bin     is a link to /$(systype)/bin
->and they have /bsd? and /sys5.  The same system could be easily adapted for
->multiple processor types.
-
-Not a bad idea.  However, in standard Apollo over-engineering mode (:-)
-I will raise the following concern with this solution:  I might be
-surprised when I do the following from my Sun 3:
-
-    cp //one_sun_4/bin/cat //another_sun_4/bin/cat
-
-(Use your imagination about what "//" means.) I will end up with a copy
-of the Sun 3 binaries sitting on my Sun 4.

Ah, but that's not a problem.  Remember that /bin is a link to /$(systype)/bin,
so what you're doing is:

    cp //one_sun_4/sun3/bin/cat //another_sun_4/sun3/bin/cat

If you don't have directories for sun3 binaries on your sun4s, it doesn't work,
and if you do, it ends up right where it belongs.  (If you're using the type
of the source/target node, however there's a problem with sun4 -> sun3, but
using the type of the node you're on keeps it consistent, and is probably what
you want.)

-                    -- Nat Mishkin
-                       Apollo Computer Inc.
-                       Chelmsford, MA
-                       {wanginst,yale,mit-eddie}!apollo!mishkin
-- 
Randy Orrison, University of Minnesota School of Mathematics
UUCP:	{ihnp4, seismo!rutgers!umnd-cs, sun}!umn-cs!randy
ARPA:	randy@ux.acss.umn.edu		 (Yes, these are three
BITNET:	randy@umnacvx			 different machines)