From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Buesch <mbuesch@freenet.de>
Date: Mon, 06 Mar 2006 21:59:31 +0000
Subject: Re: Libvolume incorrectly detects FAT32
Message-Id: <200603062259.32462.mbuesch@freenet.de>
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To: linux-hotplug@vger.kernel.org

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On Monday 06 March 2006 21:57, iSteve wrote:
> Hello,
> I'm having one silly partition, which has remnants of previous FAT32 file=
system
> on it, a LILO bootloader on it and ext2 filesystem spaning all over the
> partition.
>=20
> The first 512B look exactly like a valid FAT partition header would, exce=
pt the
> magic is "LILO".=20
>=20
> I've looked at the sources for FAT detection, and I noted that when a FAT=
=2Dlike
> filesystem misses magic, it's still considered valid, since as comment sa=
ys,
> some old floppies may lack it. I consider this point valid, however, this
> causes my partition to be detected, incorrectly, as FAT32.
>=20
> My proposed solution is to compare magic if FAT32 is assumed, and if magi=
c will
> not match for FAT32, consider it a failure; floppies that old that they l=
ack
> any magic will most likely not be formatted in FAT32.
>=20
> Trivial patch is attached, comments/complaints?:)

Yes, I fear users of stupid digicams may get hit by this.
The Formating option on cheap digicams may sometimes be buggy implemented.
I think you should instead do a
dd if=3D/dev/zero of=3D/dev/partition bs=3D512 count=3D1
and reformat your partition.

=2D-=20
Greetings Michael.

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