[ILUG] e2fsck, testdisk - failure to find superblocks?

[Conor Wynne]

If you are in rescue mode, and it is part of an LVM volume set, then you
will always get this error unless you

# lvm vgchange -ay /dev/xxx

Then you can fsck /dev/volume_group_name/lv_name

Vicente Werner wrote:
> mmm if test disk is able to see the files you should be able to recover
> them. Anyway It happened to me once something similar and what I ended doing
> was to get a superblock that will fit the partition and keep on changing
> it's parameters until it let me recover it. Another option is to follow
> this:
> http://kezhong.wordpress.com/2009/06/27/linux-ext2ext3-superblock-recovery/
>
> On Thu, Jul 9, 2009 at 12:07 PM, kae at verens.com <kae at verens.com> wrote:
>
>   
>> I've lost a partition on a hard-drive.
>>
>> Using testdisk, I can navigate around it, see the files and all that, but I
>> can't recover it because there is apparently no superblock backup.
>>
>> Is there any way to recover the damned thing? I have a backup of the
>> partition, and am willing to try possibly destructive stuff on it.
>>
>> I'm tempted to run mkfs on it, but am fairly sure that will write a blank
>> FAT with no entries. Or maybe it will see that there's already one there,
>> and will just regenerate the superblocks? anyone know?
>>
>> kae
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