Re: partitions missing on my external hard drive
arno renevier, 8.11.2011:
> Hi,
> I have a hard drive which does not work any more. It's a scsi hard drive over
> usb. I don't remember the numbers of partitions it had, but at least one which
> was crypted with cryptsetup.
>
> Currently, the drive looks correctly recognized by the system, and it appears
> correctly in /dev/sdb.
>
> But it seems like no partition at all is recognized. Nothing appears in
> /dev/sdb*, and fdisk -l outputs nothing.
>
> Do you have any idea on what could possibly be wrong, and how I could debug
> this problem more ?
>
> Regards,
> arno
>
>
>
> dmesg output when connecting the drive:
>
> [334008.507212] usb 1-2: USB disconnect, address 4
> [334297.396189] usb 1-2: new high speed USB device using ehci_hcd and address 5
> [334297.532165] usb 1-2: New USB device found, idVendor=04fc, idProduct=0c25
> [334297.532183] usb 1-2: New USB device strings: Mfr=2, Product=3, SerialNumber=1
> [334297.532196] usb 1-2: Product: USB to Serial-ATA bridge
> [334297.532206] usb 1-2: Manufacturer: Sunplus Technology Co.,Ltd.
> [334297.532217] usb 1-2: SerialNumber: 000000000000000000000000000005
> [334297.532516] usb 1-2: configuration #1 chosen from 1 choice
> [334297.534530] scsi5 : SCSI emulation for USB Mass Storage devices
> [334297.535075] usb-storage: device found at 5
> [334297.535082] usb-storage: waiting for device to settle before scanning
> [334302.532535] usb-storage: device scan complete
> [334302.533378] scsi 5:0:0:0: Direct-Access Sunplus USB2SATA bridge 0407 PQ: 0 ANSI: 2
> [334302.538188] sd 5:0:0:0: [sdb] Attached SCSI removable disk
>
> fdisk -l output:
>
> $ fdisk -l /dev/sdb
> $
>
> (nothing was output)
Have you tried running it as root? I'm not sure if it's needed but in
case it is...
You might also try cfdisk. I seem to remember that once I had a problem
with seeing the partitions with fdisk but cfdisk worked, though I'm not
absolutely sure.
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