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Thread: USB HDD not recognized

  1. #1
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    Mar 2006
    Location
    North Carolina
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    USB HDD not recognized

    I have a Seagate HDD that I have been using for system backups/restores with Clonezilla. It has always worked. I started a backup today. During the backup, we had a power glitch. Now the system nor Clonezilla and Gparted Live CDs will recognize the drive. However, the system powers the drive up, but lsusb does not list it. My assumption is the disk has no partition on it (or at least no clean partition on it), and therefore it is not showing up. Is there any way I can format this HDD with a live cd or special software of which I am not aware? I am runnung Ubuntu 12.04.4 with Gnome Classic (or Fallback or Whatever it's called now) DE.

  2. #2
    Join Date
    Jul 2010
    Location
    ozarks, Arkansas, USA
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    6,088
    Distro
    Lubuntu 14.04 Trusty Tahr

    Re: USB HDD not recognized

    cscj01; Hi !

    With the external disk connected, power up and boot up -> does bios see the hard drive ?
    What format is used on that external drive ? EXT4, NTFS, other ?

    Does the tool 'fdisk' see that external drive "
    Code:
    sudo fdisk -lu
    Else, may see what the utility 'testdisk' can do.
    Code:
    sudo apt-get install testdisk
    http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step
    http://www.cgsecurity.org/wiki/Menu_Analyse
    http://ubuntuforums.org/showthread.php?t=2112112 <- Cheesemill post #7

    Spare off the superblock ??
    Maybe:
    http://www.cyberciti.biz/tips/surviv...-failures.html

    There are those times a loss of power is real bad. But ->

    where there is life
    there is hope
    Last edited by Bashing-om; May 4th, 2014 at 07:21 PM. Reason: superblock
    THE current(cy) in Documentation:
    https://help.ubuntu.com/community/PopularPages

    Happy ubutu'n !

  3. #3
    Join Date
    Mar 2006
    Location
    North Carolina
    Beans
    303

    Re: USB HDD not recognized

    I tried lsusb -v and this showed up in the list
    Code:
    Bus 001 Device 009: ID 0bc2:3001 Seagate RSS LLC 
    Device Descriptor:
      bLength                18
      bDescriptorType         1Bus 001 Device 009: ID 0bc2:3001 Seagate RSS LLC Bus 001 Device 009: ID 0bc2:3001 Seagate RSS LLC 
    Device Descriptor:
      bLength                18
      bDescriptorType         1
      bcdUSB               2.00
      bDeviceClass            0 (Defined at Interface level)
      bDeviceSubClass         0 
      bDeviceProtocol         0 
      bMaxPacketSize0        64
      idVendor           0x0bc2 Seagate RSS LLC
      idProduct          0x3001 
      bcdDevice            0.00
      iManufacturer           1 Seagate
      iProduct                2 FreeAgent
      iSerial                 3 2GEVDW9L
      bNumConfigurations      1
      Configuration Descriptor:
        bLength                 9
        bDescriptorType         2
        wTotalLength           32
        bNumInterfaces          1
        bConfigurationValue     1
        iConfiguration          5 Config0
        bmAttributes         0xc0
          Self Powered
        MaxPower                0mA
        Interface Descriptor:
          bLength                 9
          bDescriptorType         4
          bInterfaceNumber        0
          bAlternateSetting       0
          bNumEndpoints           2
          bInterfaceClass         8 Mass Storage
          bInterfaceSubClass      6 SCSI
          bInterfaceProtocol     80 Bulk-Only
          iInterface              4 Interface0
          Endpoint Descriptor:
            bLength                 7
            bDescriptorType         5
            bEndpointAddress     0x01  EP 1 OUT
            bmAttributes            2
              Transfer Type            Bulk
              Synch Type               None
              Usage Type               Data
            wMaxPacketSize     0x0200  1x 512 bytes
            bInterval               0
          Endpoint Descriptor:
            bLength                 7
            bDescriptorType         5
            bEndpointAddress     0x81  EP 1 IN
            bmAttributes            2
              Transfer Type            Bulk
              Synch Type               None
              Usage Type               Data
            wMaxPacketSize     0x0200  1x 512 bytes
            bInterval               0
    Device Qualifier (for other device speed):
      bLength                10
      bDescriptorType         6
      bcdUSB               2.00
      bDeviceClass            0 (Defined at Interface level)
      bDeviceSubClass         0 
      bDeviceProtocol         0 
      bMaxPacketSize0        64
      bNumConfigurations      1
    Device Status:     0x0001
      Self Powered
    
    Device Descriptor:
      bLength                18
      bDescriptorType         1
      bcdUSB               2.00
      bDeviceClass            0 (Defined at Interface level)
      bDeviceSubClass         0 
      bDeviceProtocol         0 
      bMaxPacketSize0        64
      idVendor           0x0bc2 Seagate RSS LLC
      idProduct          0x3001 
      bcdDevice            0.00
      iManufacturer           1 Seagate
      iProduct                2 FreeAgent
      iSerial                 3 2GEVDW9L
      bNumConfigurations      1
      Configuration Descriptor:
        bLength                 9
        bDescriptorType         2
        wTotalLength           32
        bNumInterfaces          1
        bConfigurationValue     1
        iConfiguration          5 Config0
        bmAttributes         0xc0
          Self Powered
        MaxPower                0mA
        Interface Descriptor:
          bLength                 9
          bDescriptorType         4
          bInterfaceNumber        0
          bAlternateSetting       0
          bNumEndpoints           2
          bInterfaceClass         8 Mass Storage
          bInterfaceSubClass      6 SCSI
          bInterfaceProtocol     80 Bulk-Only
          iInterface              4 Interface0
          Endpoint Descriptor:
            bLength                 7
            bDescriptorType         5
            bEndpointAddress     0x01  EP 1 OUT
            bmAttributes            2
              Transfer Type            Bulk
              Synch Type               None
              Usage Type               Data
            wMaxPacketSize     0x0200  1x 512 bytes
            bInterval               0
          Endpoint Descriptor:
            bLength                 7
            bDescriptorType         5
            bEndpointAddress     0x81  EP 1 IN
            bmAttributes            2
              Transfer Type            Bulk
              Synch Type               None
              Usage Type               Data
            wMaxPacketSize     0x0200  1x 512 bytes
            bInterval               0
    Device Qualifier (for other device speed):
      bLength                10
      bDescriptorType         6
      bcdUSB               2.00
      bDeviceClass            0 (Defined at Interface level)
      bDeviceSubClass         0 
      bDeviceProtocol         0 
      bMaxPacketSize0        64
      bNumConfigurations      1
    Device Status:     0x0001
      Self Powered
    
      bcdUSB               2.00
      bDeviceClass            0 (Defined at Interface level)
      bDeviceSubClass         0 
      bDeviceProtocol         0 
      bMaxPacketSize0        64
      idVendor           0x0bc2 Seagate RSS LLC
      idProduct          0x3001 
      bcdDevice            0.00
      iManufacturer           1 Seagate
      iProduct                2 FreeAgent
      iSerial                 3 2GEVDW9L
      bNumConfigurations      1
      Configuration Descriptor:
        bLength                 9
        bDescriptorType         2
        wTotalLength           32
        bNumInterfaces          1
        bConfigurationValue     1
        iConfiguration          5 Config0
        bmAttributes         0xc0
          Self Powered
        MaxPower                0mA
        Interface Descriptor:
          bLength                 9
          bDescriptorType         4
          bInterfaceNumber        0
          bAlternateSetting       0
          bNumEndpoints           2
          bInterfaceClass         8 Mass Storage
          bInterfaceSubClass      6 SCSI
          bInterfaceProtocol     80 Bulk-Only
          iInterface              4 Interface0
          Endpoint Descriptor:
            bLength                 7
            bDescriptorType         5
            bEndpointAddress     0x01  EP 1 OUT
            bmAttributes            2
              Transfer Type            Bulk
              Synch Type               None
              Usage Type               Data
            wMaxPacketSize     0x0200  1x 512 bytes
            bInterval               0
          Endpoint Descriptor:
            bLength                 7
            bDescriptorType         5
            bEndpointAddress     0x81  EP 1 IN
            bmAttributes            2
              Transfer Type            Bulk
              Synch Type               None
              Usage Type               Data
            wMaxPacketSize     0x0200  1x 512 bytes
            bInterval               0
    Device Qualifier (for other device speed):
      bLength                10
      bDescriptorType         6
      bcdUSB               2.00
      bDeviceClass            0 (Defined at Interface level)
      bDeviceSubClass         0 
      bDeviceProtocol         0 
      bMaxPacketSize0        64
      bNumConfigurations      1
    Device Status:     0x0001
      Self Powered
    Also, fdisk -lu did not show the disk.

    I installed testdisk and ran it, and it did show the HDD, but it was not able to correct any disk issues. I first did an Analyze and had many read areas. Then I tried to recover a partition, but to no avail. I could not write a new MBR or clear the partition table. So I think I need some tool to format the HDD.

  4. #4
    Join Date
    Jul 2010
    Location
    ozarks, Arkansas, USA
    Beans
    6,088
    Distro
    Lubuntu 14.04 Trusty Tahr

    Re: USB HDD not recognized

    cscj01; Umph;

    Sorry, if GParted and/or testdisk can not handle the job, I am sorta grasping here.
    Might try and download and burn the testdisk CD, and see what "photorec" can do for you.

    this too would be
    a learning experience for me
    THE current(cy) in Documentation:
    https://help.ubuntu.com/community/PopularPages

    Happy ubutu'n !

  5. #5
    Join Date
    Mar 2006
    Location
    North Carolina
    Beans
    303

    Re: USB HDD not recognized

    Well, I decided if I would use dd to write zeros to the drive. Although it took 4 1/2 days, it completed successfully. However, I still get I/O errors if I attempt to create a partition table. That doesn't seem right to me. If dd can write to all of the drive, why can I not create a partition table on it. Perhaps there is something about dd that I do not understand.

    BTW, every application sees the drive now; Disk Utils, Gparted, parted, Testdisk. However none can do anything with it. I'm going to try to use it as the target in a Clonezilla operation again. Perhaps Clonezilla can work with it. I hope I do not get a power glitch during this attempt.

  6. #6
    Join Date
    Jul 2010
    Location
    ozarks, Arkansas, USA
    Beans
    6,088
    Distro
    Lubuntu 14.04 Trusty Tahr

    Re: USB HDD not recognized

    cscj01; Humm,

    I have had good results reclaiming hard drives with 'dd' !
    Code:
    sudo dd if=/dev/zero of=/dev/sda bs=1M
    That the code you ran ?
    By the way you can get a status of dd, see the man page for the procedure.
    Code:
    man dd
    In my experience with the arguments given, should take an hour per gig.
    I format and partition from terminal:
    https://help.ubuntu.com/community/In...gANewHardDrive

    And I am set to go.

    hope your results are similar
    THE current(cy) in Documentation:
    https://help.ubuntu.com/community/PopularPages

    Happy ubutu'n !

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