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Re: XFS: SB validate failed

To: "Stefan Smietanowski" <stesmi@xxxxxxxxxx>
Subject: Re: XFS: SB validate failed
From: "Spam Magnet" <spam.wax@xxxxxxxxx>
Date: Thu, 5 Jun 2008 12:16:17 -0400
Cc: "Timothy Shimmin" <tes@xxxxxxx>, "Eric Sandeen" <sandeen@xxxxxxxxxxx>, xfs@xxxxxxxxxxx
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On Tue, Jun 3, 2008 at 4:23 PM, Stefan Smietanowski <stesmi@xxxxxxxxxx> wrote:

>> I think they are but I used -u option of fdisk:
>> $ fdisk -ul jaz7.img
>> Disk jaz7.img (SGI disk label): 255 heads, 63 sectors, 0 cylinders
>> Units = sectors of 1 * 512 bytes
>> ----- partitions -----
>> Pt#    Device  Info     Start       End   Sectors  Id  System
>>  8: jaz7.img1            3072   2091007   2087936   a  SGI xfs
>>  9: jaz7.img2               0      3071      3072   0  SGI volhdr
>> 11: jaz7.img3               0   2091007   2091008   6  SGI volume
>>
>> which lists partitions in sector units. As oppose to:
>>
>> $ fdisk -l jaz7.img
>>
>> Disk jaz7.img (SGI disk label): 255 heads, 63 sectors, 0 cylinders
>> Units = cylinders of 16065 * 512 bytes
>>
>> ----- partitions -----
>> Pt#    Device  Info     Start       End   Sectors  Id  System
>>  8: jaz7.img1               1       130   2087936   a  SGI xfs
>>  9: jaz7.img2               0         0      3072   0  SGI volhdr
>> 11: jaz7.img3               0       130   2091008   6  SGI volume
>
> I'd give it a shot regardless as I don't remember if the sector size is
> actually IN the partition table and if it's NOT then it'll show the
> native blocksize of the device, which is 512bytes!
>
> Just try it, what do you have to lose? I mean do the od ..
> Worst case you get garbage or zeroes.

3072*2048=6,291,456 (30000000 octal)

$ od -t c jaz7.img | grep 30000000
30000000 377 377 367 371  \0  \0   0 365  \0  \0   ?   y  \0  \0 004 016
130000000 201 244  \0 001  \0  \0  \0  \0  \0  \0 006 201   B 373 306 307

So I guess that didn't work either :(


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