Recover stupid mistake

[Aaron Konstam]

On Thu, 2010-05-27 at 08:07 -0500, Bruno Wolff III wrote: 
> On Thu, May 27, 2010 at 13:32:51 +0100,
>   Mike Martin <redtux1 at googlemail.com> wrote:
> > Hi when I was trying (and failing) to get a bootable pen-drive, with
> > the F13 live image I accidentally did the following
> > 
> > dd if=/dev/zero of=/dev/sdb bs=512 count=1
> > 
> > which returned nearly immediately and now I have no data on the disk.
> > 
> > The disk is 750 gig , of which about 400 is used. I am hoping that
> > only the partition table is gone, if not is there any way to recover
> > from my disaster
> 
> I believe that command just changed the first 512 bytes. If you know how
> it was partitioned you can probably get things back by making a new
> partition table.

The MBR and the partition tablrhave been destroyed. If you know what the
partition table looked like fdisk can restore it. Restoring grub might
also restore the MBR.
--
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Some circumstantial evidence is very strong, as when you find a trout in
the milk. -- Thoreau
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Aaron Konstam telephone: (210) 656-0355 e-mail: akonstam at sbcglobal.net