1) Start with ddrescue http://www.gnu.org/software/ddrescue/ to image the
drive as best as possible. Afterwards you can run multiple tools if you
want against the image without provoking the I/O error monster.

2) If the image can't be mounted then use testdisk as suggested.

Testdisk has saved me more times than I'd like to admin (mostly corrupt SD
cards). The downside is that files lose their original names. That's not so
bad if you've got a directory of photos, but if you're trying to associate
financial files or other private data, you're in for a tedious slog.

--
Michael Moore


On Wed, Nov 6, 2013 at 11:39 AM, <tclug at freakzilla.com> wrote:

> You can try testdisk (http://www.cgsecurity.org/wiki/TestDisk).
>
>
>
> On Wed, 6 Nov 2013, Raymond Norton wrote:
>
>  I am helping a school attempt to recover data from a failed raid on a Win
>> 2003 server. The server blue screens when it boots, complaining of
>> corruption. I am hoping the data raid 1 is still recoverable.
>>
>> Booting to a Mint 15 Live CD, I see 2 HP Logical volumes, but get the
>> following in dmesg:
>>
>> What tools or commands can I run, in hopes of gaining access to the data?
>>
>> d
>> [  884.779258] end_request: I/O error, dev cciss/c0d1, sector 427918552
>> [  884.825085] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  884.825089] end_request: I/O error, dev cciss/c0d1, sector 427918552
>> [  884.870915] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  884.916744] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  945.361377] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  945.361391] blk_update_request: 2 callbacks suppressed
>> [  945.361397] end_request: I/O error, dev cciss/c0d0, sector 0
>> [  945.407202] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  945.407224] end_request: I/O error, dev cciss/c0d0, sector 432128896
>> [  945.453033] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  945.453060] end_request: I/O error, dev cciss/c0d0, sector 432129104
>> [  945.498863] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  945.498883] end_request: I/O error, dev cciss/c0d0, sector 0
>> [  945.544692] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  945.544715] end_request: I/O error, dev cciss/c0d0, sector 8
>> [  945.590518] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  945.590542] end_request: I/O error, dev cciss/c0d0, sector 0
>> [  945.636349] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  945.636368] end_request: I/O error, dev cciss/c0d1, sector 0
>> [  945.682177] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  945.682199] end_request: I/O error, dev cciss/c0d1, sector 427918336
>> [  945.728006] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  945.728037] end_request: I/O error, dev cciss/c0d1, sector 427918544
>> [  945.773836] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  945.773856] end_request: I/O error, dev cciss/c0d1, sector 0
>> [  945.819669] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  945.865493] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  975.755832] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  975.755844] blk_update_request: 2 callbacks suppressed
>> [  975.755847] end_request: I/O error, dev cciss/c0d0, sector 0
>> [  975.801660] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  975.801673] end_request: I/O error, dev cciss/c0d0, sector 432128896
>> [  975.847484] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  975.847498] end_request: I/O error, dev cciss/c0d0, sector 432129104
>> [  975.893321] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  975.893338] end_request: I/O error, dev cciss/c0d0, sector 0
>> [  975.939148] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  975.939158] end_request: I/O error, dev cciss/c0d0, sector 8
>> [  975.984978] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  975.984993] end_request: I/O error, dev cciss/c0d0, sector 0
>> [  976.030804] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  976.030817] end_request: I/O error, dev cciss/c0d1, sector 0
>> [  976.076636] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  976.076649] end_request: I/O error, dev cciss/c0d1, sector 427918336
>> [  976.122469] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  976.122481] end_request: I/O error, dev cciss/c0d1, sector 427918544
>> [  976.168297] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  976.168310] end_request: I/O error, dev cciss/c0d1, sector 0
>> [  976.214122] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> [  976.259947] cciss 0000:13:08.0: cciss: cmd ffff88007fb00000 is reported
>> invalid
>> mint at mint /dev/cciss $
>>
>>
>> --
>> Raymond Norton
>> LCTN
>> 952.955.7766
>>
>> --
>> Sent From My Desktop
>>
>>
> _______________________________________________
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> tclug-list at mn-linux.org
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>
>


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