[Tux3] mkfs.tux3: wiping other fs signatures

Szabolcs Szakacsits szaka at ntfs-3g.org
Sat Dec 13 06:33:02 PST 2008

On Fri, 12 Dec 2008, Ph. Marek wrote:
> OGAWA Hirofumi <hirofumi at mail.parknet.co.jp> wrote:
> > Daniel Phillips <phillips at phunq.net> writes:
> > > Set the first 4K and last sector to zero?
> > 
> > Ah, I was forgetting about it. I think, first 1024bytes (FAT, NTFS, and
> > EFI), and last 64kbytes (EFI, and MD RAID), should be enough. Right?
> Please, let us be on the safe side, and do the first 256k or even 1M each.
> FAT stores a backup boot sector, and that is typically in the 11th sector, but
> it can be nearly anywhere else.
> So I'd beg for the minimum of 64kB at start at end - and if it doesn't cost
> too much, please 1M.

Afair, reiserfs puts signature at 128 kB. NTFS may also have a backup at 
the middle of the volume.


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