Re: [Bug-ddrescue] Rescued: 0 , what next?

[David Balažic]

OK, I patched the kernel to not read the partition tables on connect,
but there is something still doing IO to the last sector of the drive.
And it fails with error as before and the drive is unreadable again.

Any idea what next?

I asked on LKML, but no reply as of now:
https://lkml.org/lkml/2016/9/3/251


Regards,
David


On 26 August 2016 at 23:49, David Balažic <address@hidden> wrote:
> The kernel is ruining this plan by trying to read the partition table
> each time I connect the drive (USB cable).
> Can it be prevented from that (besides by patching it)?
>
> Regards,
> David
>
> On 23 August 2016 at 15:21, Paul Daniels <address@hidden> wrote:
>> I'd try power cycling and see if you can get a sample of data from various
>> points on the drive ( try every 50GB).  Some drives, once they go in to fail
>> mode, you can't get anything more off them without cycling.  I ended up
>> building a USB controllable SATA power switch just so I can handle such
>> drives.
>>
>> something like....    ddrescue -v -f -i 50G -s 1G /dev/sde clone log
>>
>> ( and then -i 100G,  etc )
>>
>>
>>
>>
>>
>> On 23/08/16 23:08, David Balažic wrote:
>>>
>>> I put the files on external servers:
>>>
>>> hdparm -I output : http://pasted.co/d61d1570
>>> dmesg: http://pasted.co/a2481e14
>>> smartctl -a : http://pasted.co/aead2cc3
>>>
>>>
>>> On 23 August 2016 at 01:38, Antonio Diaz Diaz <address@hidden> wrote:
>>>>
>>>> Hi David,
>>>>
>>>> Please, don't attach large uncompressed files:
>>>>
>>>> -rw-r--r-- 1 205619 2016-08-23 01:01 dmesg
>>>> -rw-r--r-- 1   8791 2016-08-23 01:01 dmesg.lz
>>>>
>>>>
>>>> David Balažic wrote:
>>>>>
>>>>> I tried to save some data from a broken HDD with ddrescue, but after 8
>>>>> days it still says rescued: 0
>>>>>
>>>>> What options are left?
>>>>
>>>>
>>>> It seems this HDD is totally dead. Have you tried to put it in the
>>>> freezer?
>>>>
>>>>
>>>> Best regards,
>>>> Antonio.
>>>>
>>>>
>>>> _______________________________________________
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>>>
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>>
>>