Re: Sweet16

[Steven Nelson <steven-nelson@uiowa.edu>]

On May 29, 7:30 pm, gids...@sasktel.net wrote:
> > Does anyone besides me have a problem with 32MB disk images created
> > with Sweet16 IIGS emulator?  If I create/format a 32MB image with
> > Sweet16, it won't mount on the OSX desktop.  I I create a 32MB image
> > with OSX (Disk Utility), it won't mount in Sweet16.  The closest thing
> > I can offer as diagnostic is that a Sweet16 created image has
> > blocksize allocation error when 'repair' is attempted with Disk
> > Utility.  Disk size of 20MB works fine.  And at some point I created a
> > 40MB image which works fine.
>
> If you create a disk image with disk utility, and do a "Get Info" on a
> 32 MB .dmg file and the same with a 40 MB .dmg file, you will notice
> that on the 32 MB disk image there is a discrepancy between the image
> and the volume, but on the 40 MB disk image they are exactly the same
> number of bytes.  This overhead on the 32 file may be causing the
> malfunction.
>
> When selecting any of the preselects in the menu, they are always
> equal, but when you choose custom, there always seems to be a
> difference in the image size and volume size.  You may have to stick
> with the preselected sizes (10-40-100).
>
> Rob
>
> Rob

I am not quite following your logic.  I have two images created with
Disk Utility, one 32MB, one 40MB.  Get info returns the correct size
(bytes) for both.  32*1024^2=33,554,432 bytes=32MB.
40*1024^2=41,943,040 bytes=40MB.
I do know that a Sweet16 32MB image is slighty smaller (don't have one
created at the moment to check).  I figured that Sweet16 is a block or
two shorter because it is initially created with a ProDOS format and
IIRC that is just shy of the full 32MB.

My 40MB disk works with both Sweet16 and OSX.  The 32MB mounts only in
OSX.  GS/OS can't recognize and asks to reformat.  If I reformat in GS/
OS, OSX can't mount image.  Catch 22.

Thanks for feedback!

  --Steve