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From: goldman@apple.com (Phil Goldman)
Newsgroups: comp.sys.mac.programmer,comp.sys.mac
Subject: Re: Checking for MF (was Re: Need some MF help)
Message-ID: <1235@internal.Apple.COM>
Date: 6 Apr 89 23:55:32 GMT
Sender: usenet@Apple.COM
Distribution: comp.sys.mac.programmer,comp.sys.mac
Organization: Apple Computer, Inc.
Lines: 28
References:<1562@neoucom.UUCP> <28689@ucbvax.BERKELEY.EDU> <1179@internal.Apple.COM> <43465@XAIT.Xerox.COM>

In article <43465@XAIT.Xerox.COM> dee@XAIT.Xerox.COM (Donald Eastlake) 
writes:
> Thanks for reminding me.  There is another place I "check for 
MultiFinder".
> My program allows a user to Unmount volumes.  Unfortunately, there is a 
bug
> in MultiFinder, which is supposed to close the DeskTop file when an
> application does an Unmount, where it fails to do this on flat file
> system volumes and you get a busy error message.  Things are a bit
> complicated because a volume could be legitamately busy but if I get
> this error when trying to unmount a volume and its non-hierarchial and
> MF (actually the temp mem traps) is present I suggest the user try
> switching to the Finder and drag the volume to the trash, which will
> work if this MF bug is their problem.

This is a bug, albeit a minor one, in the system.  The problem is that it 
is extremely difficult to find the Desktop file on an MFS disk, because 
the FCB does not contain a name.  There are gross ways to do it, but the 
feeling was that it was unimportant since there is no reason to use MFS 
disks in any case.

Anway...if you are convinced that this is a serious bug, you should 
probably tell Mac Tech support.  If enough developers complain then we 
would reevaluate the priority of the bug fix.  You might also inform them 
if you can think of a clever fix.

-Phil Goldman
Apple Computer