How to recover an integer ext3 partition from a disk with a damaged partition table ?
Andrea Mastellone
andrea.mastellone at fastwebnet.it
Wed Sep 24 15:12:10 UTC 2008
Hi,
I have a broken solid state disk, in facts badblocks has found about a
hundred of damaged blocks. The most shortcoming is that I have lost the
partition table too, and I suspect that some bad blocks are in relation
with the partition table data since testdisk can not write the recovered
partition table to the disk. Now, I need to rescue a 10 GB ext3
partition (that is the last one on device).
So, I would like to use dd (or dd_rescue) to physically transfer the
partition in a file on an ext3 USB disk, and then mount the file as an
ext3 partition (like an iso file by means of loopback device, is it
possible ? how ?).
Since I am poor experienced with the CHS and LBA notations, someone can
me confirm this: testdisk signals that the partition begins at 6403, 1
,1 and ends at 7798, 254, 63 in CHS notation. Since the disk has 255
heads and 63 sectors, the corrispective LBA addresses would be 102864258
and 125290810, isn't it ?
And, what of these data can I pass to dd (or dd_rescue) in order to
transfer the partition ?
Or can you suggest a better way to rescue the partition ?
Thanks in advance,
Andrea
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