Re: Sweet16

[Sheppy <the.sheppy@gmail.com>]

On May 30, 1:41 am, Steven Nelson <steven-nel...@uiowa.edu> wrote:
> On May 29, 8:55 pm, gids...@sasktel.net wrote:
>
>
>
> > > 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.
>
> > You created the 32 MB disk image using the "custom" option in the
> > "volume size" menu, correct?
> > Once the disk image has been created, on the left hand side in disk
> > utility, you should see the .dmg file and indented just below it is
> > the volume for that disk image.  click on the .dmg file first and
> > check the Total Capacity at the bottom middle of the window.  Next,
> > click on the volume name, and again check the capacity.  These should
> > be equal.
>
> > Whenever I create a custom image, the sizes do not match.  I am unable
> > to use that disk with Sweet 16.  With the preselects in the "volume
> > size" menu, both sizes match and are useable with Sweet 16.
>
> > Hope that is clearer.
>
> > rob
>
> Ok, I did some more digging - kind of.  Using KEGS instead of Sweet16.
>
> KEGS will mount my 40MB and 32MB HFS images.  The 40MB is standard -
> just give KEGS the file image name.
> eg, s7d9 = /Users/snelson/Desktop/Sweet40.dmg
>
> The 32MB requires a partition name as well.  The config menu offers /
> Apple and /Apple_HFS_Untitled_1  (or something like that) so to mount
> the 32MB image I need to give partition as well
>
> eg, s7d10 = :Apple_HFS_Untitled_1:/Users/snelson/Desktop/Sweet32.dmg
>
> So, the partitions explain the difference in image and volume
> capacities.
>
> Eric, how does Sweet16 account for the difference in partitioning of
> the .dmg files?  Could this 'feature' of .dmg files be confusing
> Sweet16?

Yes; Sweet16 assumes there is no partition map at all (so did Bernie).

Sheppy