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From: chh9@quads.uchicago.edu (Conrad Halton Halling)
Newsgroups: comp.sys.mac.hypercard
Subject: Re: Bug in HyperCard 1.2.5
Message-ID: <1990Aug22.213451.17972@midway.uchicago.edu>
Date: 22 Aug 90 21:34:51 GMT
References: <1990Aug22.182827.15045@midway.uchicago.edu>
Sender: news@midway.uchicago.edu (News Administrator)
Organization: University of Chicago
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In a previous article, I discribed a bug in HyperCard 1.2.5 involving
a stack on a single-sided floppy disk.

I have been told that the problem is that HFS (hierarchical filing system)
is not placed on single-sided floppy disks during formatting or erasing
a disk UNLESS you hold down the option key after clicking the "one-sided"
button and keep holding it down until the dialog window reports "creating
directory...".  I have tried this and confirmed it.

[You can tell if you have HFS on your single-sided floppies with the
following simple test:
     o  Create two new folders on the disk.
     o  Drag a file icon from another drive window to the first folder.
     o  Drag the same file icon from the other drive window to the
        second folder.  If you get a dialog window that asks if you want
        to replace items of the same name, then the disk DOESN'T have
        HFS.  Without HFS, you can't have two files with the same name on
        a disk, even if they're in different folders.]

Indeed, the bug goes away as long as HFS has been installed on the 400K
floppy.

I can find nowhere in the HyperCard User's Guide or in the Macintosh 
Reference (describing HyperCard 1.2.5 and System 6.0.5, received with
our Mac IIcx) any description of this "undocumented feature" :-).

Such an undocumented feature should not be present, of course.
--
Conrad Halling
chh9@midway.uchicago.edu