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86Box setup (Users)

posted by boeckmann, Aachen, Germany, 05.02.2024, 09:36

> > I had some problems with CF Cards so I just managed to try it a 5
> minutes
> > ago.
> >
> > And it works!
>
>
> Glad you got it to work.
>
>
> I did some more testing and noticed some weird behavior. My Dell 316SX
> won't boot the drives w/it's native BIOS. XT-IDE r624 in my NIC's ROM
> socket is required for some reason. Instead I booted a floppy (MS DOS 7.1)
> to run some tests.
>

Some BIOSes report the disk sizes a few cylinders (mostly one) smaller than the disk actually is to store "hidden" information or simply for compatibility reasons and when calling INT 13 CHS functions. This is "by design" and not an error per se.

Free FDISK may be told to actively test for such hidden sectors via altering its INI file or via environment variable set FFD_CHECKEXTRA=ON. But it is disabled by default.

To make sure no problems arise I recommend FDISKing the disk with the combination yielding the smaller cylinder count, if you plan to transfer the CF from system to system.

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