Re: xfs_repair leaves empty but undeletable dirs in lost+found

[Martin Steigerwald <Martin@lichtvoll.de>]

Am Dienstag 10 April 2007 schrieb Lars Ellenberg:

> > Would it be possible for you apply the patch I posted to xfs@oss
> > in Feb http://oss.sgi.com/archives/xfs/2007-02/msg00072.html
> > to the latest xfsprogs source, make and install it and run:
> >
> > # xfs_metadump /dev/md1 - | bzip2 > /tmp/bad_xfs.bz2
> >
> > And make the image available for me to download and analyse?
>
> uhm. probably. I'll talk with the guy who owns the data :)
>
> out of curiosity: what exactly would you do with it?
> I mean, would that be sufficient to restore the "badness",
> with the files all filled with zero,
> and you'd be able to reproduce locally?

Hi Lars!

As far as I understand a meta data dump does not contain the actual data 
in the files. That would be sufficient als xfs_repair is for repairing 
metadata corruption. For analysing the reason why a file is undeleteable 
its actual contents should be quite irrelevant. Only thing that could 
possibly matter is the amount and location, not the contents of blocks a 
file occupies. But that doesn't seem to matter here either.

It would contain meta data information on the directory and file names as 
well as timestamps, owner and rights - if you are concerned about the 
privacy of your customer you may want to try to reproduce the problem 
with different meta data information.

Regards,
-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
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