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From: lsr@Apple.COM (Larry Rosenstein)
Newsgroups: comp.sys.mac
Subject: Re: SafeEject and 6.0.4
Message-ID: <4910@internal.Apple.COM>
Date: 26 Oct 89 17:23:30 GMT
Sender: usenet@Apple.COM
Organization: Objects-R-Us,  Apple Computer, Inc.
Lines: 19
References:<9989@pucc.Princeton.EDU> <16360@dartvax.Dartmouth.EDU> <11081@phoenix.Princeton.EDU>

On AppleLink there's a memo that says the following (paraphrasing):

SafeEject is not needed and should not be used on the Mac IIx, IIcx, 
SE/30, IIci, and Portable, or any machine upgraded with the FDHD upgrade 
kit.  There's code in the ROM of these machines to move the heads to track 
79 before ejecting the disk.

In System 6.0.4, the resource ptch=7 patches the disk driver on the Mac 
Plus, SE and II to provide the same fix.  I disassembled this resource, 
and a quick glance at it show that it installs some new code in the low 
level I/O vectors, so I believe that the fix is in 6.0.4.

I hope this answers the question once and for all.

Larry Rosenstein, Apple Computer, Inc.
Object Specialist

Internet: lsr@Apple.com   UUCP: {nsc, sun}!apple!lsr
AppleLink: Rosenstein1