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Re: trying to repair a bad header block

From: gherzig(at)fmed(dot)uba(dot)ar
To: "Scott Marlowe" <scott(dot)marlowe(at)gmail(dot)com>
Cc: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-sql(at)postgresql(dot)org
Subject: Re: trying to repair a bad header block
Date: 2008-10-30 10:26:34
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Lists: pgsql-sql
> On Wed, Oct 29, 2008 at 6:36 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> "Scott Marlowe" <scott(dot)marlowe(at)gmail(dot)com> writes:
>>> On Wed, Oct 29, 2008 at 4:23 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>>>> If you can tolerate losing the data on that page, just zero out the
>>>> entire 8K page.  dd from /dev/zero is the usual tool.
>>> Would zero_damaged_pages work here?  I know it's a shotgun to kill a
>>> flea, but it's also easier and safer for a lot of folks than dding a
>>> page in their table.
>> It would work, but if you have any *other* damaged pages you might
>> lose more than you were expecting ...
> Agreed.  OTOH, on slip of the fingers for a newbie with dd and the
> whole table is gone.  I guess it's always a trade off.
Thanks Tom and Scott! I just use dd for simply creating big files (oh, and
once to screw up a entire disk :)

Im going to man it in order to zero out that page(s).

Wish me lucks, dudes.


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