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partition recovery

To: linux-xfs@xxxxxxxxxxx
Subject: partition recovery
From: Arkadiusz Miskiewicz <misiek@xxxxxxxxxx>
Date: Thu, 8 Nov 2001 16:38:55 +0100
Organization: Polish(ed) Linux Distribution Team
Sender: owner-linux-xfs@xxxxxxxxxxx
User-agent: Mutt/1.3.18i
Hi,

Recently I've crashed both partition tables (1 and 2 copy).
My setup was:
        start           end
hda1        0.031       10001.250       fat
        10001.404       29313.918       extended lba
hda5    10001.435       20002.807       xfs
hda6    20002.838       20198.913       swap
hda7    20198.944       20598.969       ext2
hda8    20599.000       23603.312       xfs
hda9    23603.344       29313.918       lvm
(values in MB as shown by parted)

Now I'm trying to recover xfs partitions. Unfortunately
I can't create exactly same partition with same positions
as previously. Now fdisk, cfdisk, parted always create
partition like this:

2      10001.250  20002.992  primary
(rounding to cylinder?)

So I'm trying to use xfs_repair (1.2.0) on such (not exacly
same as in original) partition but. 

xfs_repair -n /dev/hda2
Phase 1 - find and verify superblock...
bad primary superblock - bad magic number !!!
......................................
...
attempting to find secondary superblock...
nable to verify superblock, continuing...
...

It found more than 5 backup superblocks but it was
unable to verify all superblocks.

Any hints how to recover data from these partitions?

i686, 2.4.13, xfs-20011026
-- 
Arkadiusz Miśkiewicz, AM2-6BONE    [ PLD GNU/Linux IPv6 ]
http://www.t17.ds.pwr.wroc.pl/~misiek/ipv6/   [ enabled ]


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