[ale] SD card access fails with ddrescue

Fri May 20 13:31:40 EDT 2011

DroidX suddenly lost access to SD card.  Rebooted after reseating card and
phone says SD card is blank.  I attempted to access the card via a USB SD
card reader on my Ubuntu 10.04 system.  The kernel tells me a bunch of SCSI
messages I've put below.  However, my question is when trying to use dd or
ddrescue to access the device I get these messages:

dd_rescue: (fatal): open "/dev/sdc" failed: No medium found

dd: opening `/dev/sdc': No medium found

So here are the kernel messages when the SD card is sensed:
May 20 12:07:58 arwen kernel: [172595.490118] usb 1-4.3: new high speed USB
device using ehci_hcd and address 5
May 20 12:07:58 arwen kernel: [172595.614760] usb 1-4.3: configuration #1
chosen from 1 choice
May 20 12:07:58 arwen kernel: [172595.615694] scsi5 : SCSI emulation for USB
Mass Storage devices
May 20 12:07:58 arwen kernel: [172595.616034] usb-storage: device found at 5
May 20 12:07:58 arwen kernel: [172595.616039] usb-storage: waiting for
device to settle before scanning
May 20 12:08:03 arwen kernel: [172600.610708] usb-storage: device scan
complete
May 20 12:08:03 arwen kernel: [172600.611545] scsi 5:0:0:0:
Direct-Access     Generic  STORAGE DEVICE   9412 PQ: 0 ANSI: 0
May 20 12:08:03 arwen kernel: [172600.612780] sd 5:0:0:0: Attached scsi
generic sg3 type 0
May 20 12:08:04 arwen kernel: [172600.674639] sd 5:0:0:0: [sdc] Very big
device. Trying to use READ CAPACITY(16).
May 20 12:08:04 arwen kernel: [172600.675893] sd 5:0:0:0: [sdc] Using
0xffffffff as device size
May 20 12:08:04 arwen kernel: [172600.675905] sd 5:0:0:0: [sdc] 4294967296
512-byte logical blocks: (2.19 TB/2.00 TiB)
May 20 12:08:04 arwen kernel: [172600.677017] sd 5:0:0:0: [sdc] Write
Protect is off
May 20 12:08:04 arwen kernel: [172600.677024] sd 5:0:0:0: [sdc] Mode Sense:
03 00 00 00
May 20 12:08:04 arwen kernel: [172600.677027] sd 5:0:0:0: [sdc] Assuming
drive cache: write through
May 20 12:08:04 arwen kernel: [172600.679018] sd 5:0:0:0: [sdc] Very big
device. Trying to use READ CAPACITY(16).
May 20 12:08:04 arwen kernel: [172600.680259] sd 5:0:0:0: [sdc] Using
0xffffffff as device size
May 20 12:08:04 arwen kernel: [172600.681394] sd 5:0:0:0: [sdc] Assuming
drive cache: write through
May 20 12:08:08 arwen kernel: [172600.681405]  sdc:
May 20 12:08:08 arwen kernel: [172605.382610] sd 5:0:0:0: [sdc] Device not
ready
May 20 12:08:08 arwen kernel: [172605.382616] sd 5:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 20 12:08:08 arwen kernel: [172605.382621] sd 5:0:0:0: [sdc] Sense Key :
Not Ready [current]
May 20 12:08:08 arwen kernel: [172605.382627] sd 5:0:0:0: [sdc] Add. Sense:
Medium not present
May 20 12:08:08 arwen kernel: [172605.382634] sd 5:0:0:0: [sdc] CDB:
Read(10): 28 00 00 00 00 00 00 00 08 00
May 20 12:08:08 arwen kernel: [172605.382648] end_request: I/O error, dev
sdc, sector 0
May 20 12:08:08 arwen kernel: [172605.382654] __ratelimit: 6 callbacks
suppressed
May 20 12:08:08 arwen kernel: [172605.382658] Buffer I/O error on device
sdc, logical block 0
May 20 12:08:08 arwen kernel: [172605.383974] sd 5:0:0:0: [sdc] Device not
ready
May 20 12:08:08 arwen kernel: [172605.383977] sd 5:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 20 12:08:08 arwen kernel: [172605.383982] sd 5:0:0:0: [sdc] Sense Key :
Not Ready [current]
May 20 12:08:08 arwen kernel: [172605.383986] sd 5:0:0:0: [sdc] Add. Sense:
Medium not present
May 20 12:08:08 arwen kernel: [172605.383991] sd 5:0:0:0: [sdc] CDB:
Read(10): 28 00 00 00 00 00 00 00 08 00
May 20 12:08:08 arwen kernel: [172605.384003] end_request: I/O error, dev
sdc, sector 0
May 20 12:08:08 arwen kernel: [172605.384008] Buffer I/O error on device
sdc, logical block 0
May 20 12:08:08 arwen kernel: [172605.385224] sd 5:0:0:0: [sdc] Device not
ready
May 20 12:08:08 arwen kernel: [172605.385227] sd 5:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 20 12:08:08 arwen kernel: [172605.385231] sd 5:0:0:0: [sdc] Sense Key :
Not Ready [current]
May 20 12:08:08 arwen kernel: [172605.385236] sd 5:0:0:0: [sdc] Add. Sense:
Medium not present
May 20 12:08:08 arwen kernel: [172605.385241] sd 5:0:0:0: [sdc] CDB:
Read(10): 28 00 00 00 00 00 00 00 08 00
May 20 12:08:08 arwen kernel: [172605.385252] end_request: I/O error, dev
sdc, sector 0
May 20 12:08:08 arwen kernel: [172605.385256] Buffer I/O error on device
sdc, logical block 0
May 20 12:08:08 arwen kernel: [172605.386473] sd 5:0:0:0: [sdc] Device not
ready
May 20 12:08:08 arwen kernel: [172605.386476] sd 5:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 20 12:08:08 arwen kernel: [172605.386480] sd 5:0:0:0: [sdc] Sense Key :
Not Ready [current]
May 20 12:08:08 arwen kernel: [172605.386485] sd 5:0:0:0: [sdc] Add. Sense:
Medium not present
May 20 12:08:08 arwen kernel: [172605.386490] sd 5:0:0:0: [sdc] CDB:
Read(10): 28 00 00 00 00 00 00 00 08 00
May 20 12:08:08 arwen kernel: [172605.386501] end_request: I/O error, dev
sdc, sector 0
May 20 12:08:08 arwen kernel: [172605.386505] Buffer I/O error on device
sdc, logical block 0
May 20 12:08:08 arwen kernel: [172605.387723] sd 5:0:0:0: [sdc] Device not
ready
May 20 12:08:08 arwen kernel: [172605.387726] sd 5:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 20 12:08:08 arwen kernel: [172605.387730] sd 5:0:0:0: [sdc] Sense Key :
Not Ready [current]
May 20 12:08:08 arwen kernel: [172605.387735] sd 5:0:0:0: [sdc] Add. Sense:
Medium not present
May 20 12:08:08 arwen kernel: [172605.387740] sd 5:0:0:0: [sdc] CDB:
Read(10): 28 00 00 00 00 00 00 00 08 00
May 20 12:08:08 arwen kernel: [172605.387751] end_request: I/O error, dev
sdc, sector 0
May 20 12:08:08 arwen kernel: [172605.387755] Buffer I/O error on device
sdc, logical block 0
May 20 12:08:08 arwen kernel: [172605.387768]
ldm_validate_partition_table(): Disk read failed.
May 20 12:08:08 arwen kernel: [172605.388972] sd 5:0:0:0: [sdc] Device not
ready
May 20 12:08:08 arwen kernel: [172605.388975] sd 5:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 20 12:08:08 arwen kernel: [172605.388979] sd 5:0:0:0: [sdc] Sense Key :
Not Ready [current]
May 20 12:08:08 arwen kernel: [172605.388984] sd 5:0:0:0: [sdc] Add. Sense:
Medium not present
May 20 12:08:08 arwen kernel: [172605.388989] sd 5:0:0:0: [sdc] CDB:
Read(10): 28 00 00 00 00 00 00 00 08 00
May 20 12:08:08 arwen kernel: [172605.389000] end_request: I/O error, dev
sdc, sector 0
May 20 12:08:08 arwen kernel: [172605.389004] Buffer I/O error on device
sdc, logical block 0
May 20 12:08:08 arwen kernel: [172605.390223] sd 5:0:0:0: [sdc] Device not
ready
May 20 12:08:08 arwen kernel: [172605.390227] sd 5:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 20 12:08:08 arwen kernel: [172605.390231] sd 5:0:0:0: [sdc] Sense Key :
Not Ready [current]
May 20 12:08:08 arwen kernel: [172605.390236] sd 5:0:0:0: [sdc] Add. Sense:
Medium not present
May 20 12:08:08 arwen kernel: [172605.390240] sd 5:0:0:0: [sdc] CDB:
Read(10): 28 00 00 00 00 00 00 00 08 00
May 20 12:08:08 arwen kernel: [172605.390252] end_request: I/O error, dev
sdc, sector 0
May 20 12:08:08 arwen kernel: [172605.390256] Buffer I/O error on device
sdc, logical block 0
May 20 12:08:08 arwen kernel: [172605.391472] sd 5:0:0:0: [sdc] Device not
ready
May 20 12:08:08 arwen kernel: [172605.391475] sd 5:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 20 12:08:08 arwen kernel: [172605.391479] sd 5:0:0:0: [sdc] Sense Key :
Not Ready [current]
May 20 12:08:08 arwen kernel: [172605.391484] sd 5:0:0:0: [sdc] Add. Sense:
Medium not present
May 20 12:08:08 arwen kernel: [172605.391488] sd 5:0:0:0: [sdc] CDB:
Read(10): 28 00 00 00 00 00 00 00 08 00
May 20 12:08:08 arwen kernel: [172605.391500] end_request: I/O error, dev
sdc, sector 0
May 20 12:08:08 arwen kernel: [172605.391503] Buffer I/O error on device
sdc, logical block 0
May 20 12:08:08 arwen kernel: [172605.392725] sd 5:0:0:0: [sdc] Device not
ready
May 20 12:08:08 arwen kernel: [172605.392728] sd 5:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 20 12:08:08 arwen kernel: [172605.392732] sd 5:0:0:0: [sdc] Sense Key :
Not Ready [current]
May 20 12:08:08 arwen kernel: [172605.392737] sd 5:0:0:0: [sdc] Add. Sense:
Medium not present
May 20 12:08:08 arwen kernel: [172605.392742] sd 5:0:0:0: [sdc] CDB:
Read(10): 28 00 00 00 00 00 00 00 08 00
May 20 12:08:08 arwen kernel: [172605.392755] end_request: I/O error, dev
sdc, sector 0
May 20 12:08:08 arwen kernel: [172605.392759] Buffer I/O error on device
sdc, logical block 0
May 20 12:08:08 arwen kernel: [172605.392776] Dev sdc: unable to read RDB
block 0
May 20 12:08:08 arwen kernel: [172605.393971] sd 5:0:0:0: [sdc] Device not
ready
May 20 12:08:08 arwen kernel: [172605.393974] sd 5:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 20 12:08:08 arwen kernel: [172605.393978] sd 5:0:0:0: [sdc] Sense Key :
Not Ready [current]
May 20 12:08:08 arwen kernel: [172605.393983] sd 5:0:0:0: [sdc] Add. Sense:
Medium not present
May 20 12:08:08 arwen kernel: [172605.393988] sd 5:0:0:0: [sdc] CDB:
Read(10): 28 00 00 00 00 00 00 00 08 00
May 20 12:08:08 arwen kernel: [172605.393999] end_request: I/O error, dev
sdc, sector 0
May 20 12:08:08 arwen kernel: [172605.394003] Buffer I/O error on device
sdc, logical block 0
May 20 12:08:08 arwen kernel: [172605.395223] sd 5:0:0:0: [sdc] Device not
ready
May 20 12:08:08 arwen kernel: [172605.395227] sd 5:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 20 12:08:08 arwen kernel: [172605.395231] sd 5:0:0:0: [sdc] Sense Key :
Not Ready [current]
May 20 12:08:08 arwen kernel: [172605.395235] sd 5:0:0:0: [sdc] Add. Sense:
Medium not present
May 20 12:08:08 arwen kernel: [172605.395240] sd 5:0:0:0: [sdc] CDB:
Read(10): 28 00 00 00 00 00 00 00 08 00
May 20 12:08:08 arwen kernel: [172605.395252] end_request: I/O error, dev
sdc, sector 0
May 20 12:08:08 arwen kernel: [172605.396474] sd 5:0:0:0: [sdc] Device not
ready
May 20 12:08:08 arwen kernel: [172605.396477] sd 5:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 20 12:08:08 arwen kernel: [172605.396481] sd 5:0:0:0: [sdc] Sense Key :
Not Ready [current]
May 20 12:08:08 arwen kernel: [172605.396485] sd 5:0:0:0: [sdc] Add. Sense:
Medium not present
May 20 12:08:08 arwen kernel: [172605.396490] sd 5:0:0:0: [sdc] CDB:
Read(10): 28 00 00 00 00 18 00 00 08 00
May 20 12:08:08 arwen kernel: [172605.396502] end_request: I/O error, dev
sdc, sector 24
May 20 12:08:08 arwen kernel: [172605.397721] sd 5:0:0:0: [sdc] Device not
ready
May 20 12:08:08 arwen kernel: [172605.397725] sd 5:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 20 12:08:08 arwen kernel: [172605.397729] sd 5:0:0:0: [sdc] Sense Key :
Not Ready [current]
May 20 12:08:08 arwen kernel: [172605.397733] sd 5:0:0:0: [sdc] Add. Sense:
Medium not present
May 20 12:08:08 arwen kernel: [172605.397738] sd 5:0:0:0: [sdc] CDB:
Read(10): 28 00 00 00 00 18 00 00 08 00
May 20 12:08:08 arwen kernel: [172605.397750] end_request: I/O error, dev
sdc, sector 24
May 20 12:08:08 arwen kernel: [172605.398971] sd 5:0:0:0: [sdc] Device not
ready
May 20 12:08:08 arwen kernel: [172605.398974] sd 5:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 20 12:08:08 arwen kernel: [172605.398978] sd 5:0:0:0: [sdc] Sense Key :
Not Ready [current]
May 20 12:08:08 arwen kernel: [172605.398983] sd 5:0:0:0: [sdc] Add. Sense:
Medium not present
May 20 12:08:08 arwen kernel: [172605.398988] sd 5:0:0:0: [sdc] CDB:
Read(10): 28 00 00 00 00 00 00 00 08 00
May 20 12:08:08 arwen kernel: [172605.398999] end_request: I/O error, dev
sdc, sector 0
May 20 12:08:08 arwen kernel: [172605.400221] sd 5:0:0:0: [sdc] Device not
ready
May 20 12:08:08 arwen kernel: [172605.400224] sd 5:0:0:0: [sdc] Result:
hostbyte=DID_OK driverbyte=DRIVER_SENSE
May 20 12:08:08 arwen kernel: [172605.400228] sd 5:0:0:0: [sdc] Sense Key :
Not Ready [current]
May 20 12:08:08 arwen kernel: [172605.400233] sd 5:0:0:0: [sdc] Add. Sense:
Medium not present
May 20 12:08:08 arwen kernel: [172605.400238] sd 5:0:0:0: [sdc] CDB:
Read(10): 28 00 00 00 00 00 00 00 08 00
May 20 12:08:08 arwen kernel: [172605.400249] end_request: I/O error, dev
sdc, sector 0
May 20 12:08:08 arwen kernel: [172605.400263]  unable to read partition
table
May 20 12:08:08 arwen kernel: [172605.401391] sd 5:0:0:0: [sdc] Attached
SCSI removable disk

Does this mean that the card's circuitry is damaged?  I just want to recover
an image of whatever data is on the flash card.  It is a 16GB card with some
photos, applications, and videos.  I had downloaded most of the photos but
don't have the last month or so.  Recorded some video from two different
concerts I went to that I wanted to save.  A bit frustrated that dd won't
access the card.  Google search isn't giving me much info on how to know
when a card is truly inaccessible.

Best wishes,
Dow Hurst
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