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Floppy formatting on MacOS8 vs. MacOSX

Apfelmus

New Member
Joined
Mar 1, 2024
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1
Hi all,

recently I ran into a problem when trying to use a floppy drive in a Tektronix Audio Analyzer that had to be "DOS formatted".

I tried to DOS-format a floppy many times on my OSX with the USB floppy and it failed, the Tek did not even see the floppy. Finally I tried out my old 3400c laptop running MacOS8 and this time the floppy was accepted by the Tek (and by OSX, too)!

Apparently there is a difference in DOS-formatting a floppy on MacOS8 and MacOSX. My guess is it has something to do with partitions that are created by OSX. That never bothered other instruments and PCs before, though.

Anyone knows if there are subtle differences in PC-formatting between Mac OSs, and if there is a way to make the OSX format a floppy like OS8?

Thanks,
Martin
 
Welcome to the forum @Apfelmus .

My guess is that the floppy is being formatted in a non-MBR fashion by Mac OS X. Do you have any screenshots of the formatting process?

Mac OS X is fully capably of formatting normal MBR FAT12 1.44mb floppy disks.

- Alex
 
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