Data recovery emergency on a downed server... Help please!!

Tom Legrady legrady-bJEeYj9oJeDQT0dZR+AlfA at public.gmane.org
Mon Dec 29 23:30:07 UTC 2003


Don't use zcat to decompress a file ... use the appropriate tool,  gunzip:

gunzip file.tar.gz
ls file.tar

NB. gunzip -c file.tar.gz is identical to zcat/


He already has a backup of the tar.gz ... it's called a tape

Tom

Walter Dnes wrote:

>On Mon, Dec 29, 2003 at 10:51:45AM -0500, Madison Kelly wrote
>
>  
>
>>PS - I got a dd of th last tape that ran (finally) and it is about 3.6GB
>>(about right). I extracted it as a tar.gz (which should work) but it fails
>>claiming to not be a gzip archive... Any ideas on that front by chance?
>>    
>>
>
>  *MAKE A BACKUP COPY OF THE TAR.GZ FILE FIRST* !!!
>
>  Straight from the man page...
>  
>
>>       tar -xvvzf foo.tar.gz
>>              extract gzipped foo.tar.gz
>>    
>>
>..did you remember the "z" parameter ?
>
>  I've had similar problems with tar.bz2 archives.  I find that doing it
>one step at a time works.  Note, you will need a *LOT* more diskspace.
>
>Step 1) zcat filename.tar.gz > filename.tar
>  The "zcat" executable is named "gzcat" in some versions.  Use whichever
>one works on your system.
>
>Step 2) tar -xvf filename.tar
>
>  
>

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