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From: lsr@apple.UUCP (Larry Rosenstein)
Newsgroups: net.micro.mac
Subject: Re: A 128K ROM and HFS Question
Message-ID: <20073@apple.UUCP>
Date: Fri, 14-Feb-86 19:56:56 EST
Article-I.D.: apple.20073
Posted: Fri Feb 14 19:56:56 1986
Date-Received: Sun, 16-Feb-86 04:53:46 EST
References: <346@infsc3.hatpoly.UUCP> <694@harvard.UUCP> <636@well.UUCP> <9417@amdcad.UUCP>
Reply-To: lsr@apple.UUCP (Larry Rosenstein)
Organization: Advanced Development Group, Apple Computer
Lines: 36

In article <9417@amdcad.UUCP> jimb@amdcad.UUCP (Jim Budler) writes:
>I booted a Mac disk in a Mac Plus at the dealer the other day, if that
>answers your question.  4.1 finder and all.
>
>But, why not run the new finder? If you leave your hard disk configured
>as several MFS volumes, finder 5.x will still treat them as such while
>allowing you to use HFS on the 800k floppy.

You have to be careful with this because there are patches to the ROM that
are in the new System file but not in old System files.  If you boot from a
disk without the patches then you may run into serious problems.

The orginal question asked whether you could update to the 800K drives and
128K ROM and not use Finder 5.1 or HFS.  

The version of the Finder does not matter.  Finder 5.1 will run on machines
with either ROM, so you might as well use the later version (it is as
reliable as 4.1 and more reliable than 5.0).  The other system software
(Imagewriter driver, DA,s etc.) are much improved over previous versions
and so it is worthwhile to upgrade to them.

This leaves HFS.  I think that the HFS has gotten an undeserved bad
reputation.  It is very reliable (doesn't crash), and MOST applications work
unchanged or with minor changes in the way you use them.  Jim is right in
that any incompatibilities caused by HFS occur only if you are using an HFS
volume.  If you run an application off of an old (MFS) volume then you
should have no problems.

I will have more to say about HFS in a future message.

-- 
Larry Rosenstein
Apple Computer

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