Re: Recover stupid mistake

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Tom H wrote:
> On Thu, May 27, 2010 at 5:00 PM, Aaron Konstam <akonstam@xxxxxxxxxxxxx>
wrote:
>> 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@xxxxxxxxxxxxxx> 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.
>
> You can try to use gpart to determine the partition boundaries and
> sizes and then use fdisk to restore them.
You may want to try testdisk.

http://www.cgsecurity.org/wiki/TestDisk_Download


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