Re: Erased start of voulme...

["E.Gryaznova" <grev@namesys.com>]

Alex Zarochentsev wrote:

>Hello,
>
>On Thu, Jan 13, 2005 at 05:03:30PM -0800, Louis Erickson wrote:
>  
>
>>I don't know how it happened, but the start of the /var partition of one 
>>of the machines I run has gotten itself zeroed out.  Only the first little 
>>bit - 4k or so - is nulls, then a large amount of very plausible data 
>>appears.
>>
>>I can't get reiserfsck to even think this is a reiserfs volume - the 
>>program doesn't think this is a reiserfs volume any more.
>>    
>>
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>  
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>>Is there any chance of getting the data back off of this disk?  Can 
>>reiserfsck be told to look harder and recover more deeply or something?  
>>Or is this a lesson in why backups are important?
>>
>>Any suggestions you can give are welcome.
>>    
>>
>
>reiserfsck --rebuild-sb can re-create the super block.
>  
>
I would prefer to do the following :
dd if=/dev/problem_partition of=/dev/sparedevice
sparedevice can be usual disk partition
then
reiserfsck --rebuild-sb /dev/sparedevice
reiserfsck --check /dev/sparedevice

Thanks,
Lena.

>  
>
>>I'm currently running dd from the mangled partition to a file to be able 
>>to try some things without losing my only copy of the data.  If there's 
>>anything special I have to do to make that work, please let me know.
>>
>>Thank you!
>>
>>-- 
>>Louis Erickson - lerickson@rdwarf.net - http://www.rdwarf.com/~wwonko/
>>
>>Oh Dad!  We're ALL Devo!
>>    
>>
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