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From: gourdol@imag.imag.fr (Gourdol Arnaud)
Newsgroups: comp.sys.mac.misc
Subject: Re: System v.??System v ?.? between machines
Message-ID: <19903@imag.imag.fr>
Date: 30 Mar 91 14:03:25 GMT
References: <11670001@hpmwmat.HP.COM> <DUBACH1.91Mar29165157@husc9.harvard.edu>
Organization: IMAG Institute, University of Grenoble, France
Lines: 47

In article <DUBACH1.91Mar29165157@husc9.harvard.edu> dubach1@husc9.harvard.edu (joev dubach) writes:
>In article <11670001@hpmwmat.HP.COM> mikep@hpmwtd.HP.COM (Mike Powell) writes:
>
>	   Are the System and Finder files compatible between the
>	   MacII's and the MacSE's??? I have a friend that might have
>	   a higher System Version than I, and I'd like to 'move-up',
>	   but since he has a MacII, I'm not sure if it will work with
>	   my SE...
>
>In response:
>	You can use any system on an SE that can be used on a II, but
>the reverse is not the case; the si, for instance, will not allow
>anything less than 6.0.7.
>	This said, I would advise that you upgrade to 6.0.5 (if you
>need to) BUT GO NO FURTHER.  6.0.5 is clean.  Only upon the owners of
>IIsi's (and other such newer models) is bestowed the martyrdom of
>using the hellishly buggy 6.0.7.
>
>Joev Dubach


Not quite true. (No, this is not another System Version War :-)
I let you decide which version of the System Software you want to
use. And that's true that any version that can run on a Mac II 
should run on a SE.

Now there are others things than system versions to consider.
When you install a system on your Mac, you can choose a universal
version that will work on any Macintosh. That's the prefered solution
for diskettes, so that you can boot your system disk on any Mac.
But if you choose (and I think that's the default option with
the Easy Installer) to install a version specific to YOUR Mac, then
installing the system on another Mac by dragging icons will not
work. The reason is that the specific version installation puts
in your system only what is needed for your Mac, and omits 
system patches that may be necessary for other Macs.
The result will be that your Mac won't boot, and display a nice
alert box explaining you the situation.

Conclusion: Find a set of system disks and use the installer to
install it.

Arnaud.-- 
   /======================//==========================================/
  / Arnaud Gourdol.      // On the Netland:         Gourdol@imag.fr  /
 /                      // Via AppleLink: Gourdol@imag.fr@INTERNET# /
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