[Lustre-discuss] Reclaiming ext3 reserved space failed

[Kalpak Shah]

On Fri, 2008-06-27 at 12:23 +0200, Timh Bergström wrote:
> Hi all,
> 
> Im trying to reclaim the 5% space reserved for root from my osts,
> which the manual says I should be able to do with tune2fs. So I
> downloaded the latest version, tune2fs 1.40.11 (17-June-2008) and im
> trying to run as stated in the manual $tune2fs -m 1 /dev/sdXY.
> 
> This gives me :
> tune2fs: Filesystem has unsupported feature(s) while trying to open /dev/sda1
> Couldn't find valid filesystem superblock.
> 
> Is there any special patches i need to apply or is there another
> version of e2fsprogs i should download?
> 

The upstream e2fsprogs will not always work with Lustre filesystems. You
need a Lustre patched e2fsprogs available at:

http://downloads.lustre.org/public/tools/e2fsprogs/1.40.7.sun3/

Thanks,
Kalpak

> It's quite annoying to loose close to 5TB just because of this. :-)
>