how to save back partition table

NoOp glgxg at
Mon Oct 4 17:18:34 UTC 2010

On 10/04/2010 05:38 AM, loody wrote:
> Dear all:
> I accidentally dd about 7MBytes to /dev/sda1, and it cause my HD
> cannot be recognized by ubuntu.
> Is there any way to save it back, no matter use any tool under XP or ubuntu?
> appreciate your help,
> miloody

dd it back from a liveCD?

In addition to what Franz provided:

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