Re: ext2 anomaly when making filesystem?

From: Andreas Dilger (adilger@clusterfs.com)
Date: Tue Sep 03 2002 - 12:04:16 EST


On Sep 03, 2002 08:22 +0200, Ulrich Windl wrote:
> Being curious, I dumped the metadata after creation and found some odd
> thing: For several allocation groups there was a gap in the free
> blocks. First I thought it is intentional; maybe to put administrative
> data in the moddle of the allocation group, but then I found that other
> groups had no such gap. I'll attach the dump at the end.
>
> If it's intentional, maybe add some documentation about the layout to
> the manual pages; if it's a bug, it would be nice to see it fixed.

It _is_ intentional. The groups which have a gap do not have a backup
superblock or group descriptor table.

Cheers, Andreas

--
Andreas Dilger
http://www-mddsp.enel.ucalgary.ca/People/adilger/
http://sourceforge.net/projects/ext2resize/

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