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Thread: [SOLVED] External HDD suddenly fails to mount

  1. #1
    Join Date
    Jan 2006
    Beans
    51

    [SOLVED] External HDD suddenly fails to mount

    Hello. Im using ubuntu 8.04 on an Acer aspire 3000 laptop. I have been using an external hard drive for a couple of years and no probs. Today using as nrmal and suddenly can't open file on it. Turn it off and on and I get the error message in the screenshot. Tried it with a 7.10 live cd and got the same error. Output of dmesg | tail is

    marcus@marcus-laptop:~$ dmesg | tail
    [ 769.804763] sd 2:0:0:0: [sdb] Mode Sense: 00 38 00 00
    [ 769.804766] sd 2:0:0:0: [sdb] Assuming drive cache: write through
    [ 769.806002] sd 2:0:0:0: [sdb] 625142448 512-byte hardware sectors (320073 MB)
    [ 769.807006] sd 2:0:0:0: [sdb] Write Protect is off
    [ 769.807014] sd 2:0:0:0: [sdb] Mode Sense: 00 38 00 00
    [ 769.807017] sd 2:0:0:0: [sdb] Assuming drive cache: write through
    [ 769.807024] sdb: sdb1
    [ 769.823706] sd 2:0:0:0: [sdb] Attached SCSI disk
    [ 769.823750] sd 2:0:0:0: Attached scsi generic sg2 type 0
    [ 867.135786] EXT3-fs: journal inode is deleted.
    marcus@marcus-laptop:~$
    Any help would be appreciated as most of my files are on this drive.
    Thankyou for your time


    Edit After reading other posts by people with a similar problem tried this
    The superblock could not be read or does not describe a correct ext2
    filesystem. If the device is valid and it really contains an ext2
    filesystem (and not swap or ufs or something else), then the superblock
    is corrupt, and you might try running e2fsck with an alternate superblock:
    e2fsck -b 8193 <device>

    marcus@marcus-laptop:~$ /dev/sd1
    bash: /dev/sd1: No such file or directory
    marcus@marcus-laptop:~$ e2fsck -b 8193 /dev/sda1
    e2fsck 1.40.8 (13-Mar-2008)
    /dev/sda1 is mounted.

    WARNING!!! Running e2fsck on a mounted filesystem may cause
    SEVERE filesystem damage.

    Do you really want to continue (y/n)?
    Should I continue? I don't really understand how e2fscuk works and am not keen to wipe my entire drive.

    contents of etc/fstab are
    # /etc/fstab: static file system information.
    #
    # <file system> <mount point> <type> <options> <dump> <pass>
    proc /proc proc defaults 0 0
    # /dev/sda1
    UUID=6c1b8ed8-ca98-4a89-bc70-e438bacb5898 / ext3 defaults,errors=remount-ro 0 1
    # /dev/sda5
    UUID=fe52cd99-8ab6-4854-8114-9898f4d610ca none swap sw 0 0
    /dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec 0 0
    Attached Images Attached Images
    Last edited by goathunter; June 15th, 2008 at 04:22 AM.

  2. #2
    Join Date
    Jan 2006
    Beans
    51

    Re: External HDD suddenly fails to mount

    Problem solved. Opened up gpartd from a 7.10 live cd. Opened up the drive in that (/dev/sdb1/) Clicked check and repair. Took about 14 minutes. Drive still failed to detect in the live cd so I rebooted and took it out. After booting 8.04 from my harddrive, the external drive was being detected again no worries.

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