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Thread: Can't mount internal hard disks Ubuntu 12.04

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  1. #1
    Join Date
    Apr 2010
    Beans
    8

    Can't mount internal hard disks Ubuntu 12.04

    I'm running Ubuntu 12.04 and am fairly new to it. My machine has 3 hard disks, 1 (ext4) 2.0 TB for Ubuntu and home directories, 1 (ext4) 1.5 TB to be used presently when I relocate all /home/ directories for the whole /home/ tree, and a third drive for backup (ext4, 1.0TB). The machine picked right up on the first disk, did the Ubuntu install, etc. 1.5TB and 1.0TB disks are shown at upper end of directory tree when I use the built-in directory tree traverser (icon is a couple of folders, don't know program's name). Yet when I try to mount either disk 2 or disk 3 by right cliking them and picking "mount" they won't do it. If I use fstab to automount them with lines at the end of the file like:
    UUID=long--string-here, gotten by blkid /media/ ...
    the machine during boot says there's a problem mounting the drive, and asks if I want to skip it.

    I also tried using "mount" to mount the disks, but with no more success.

    I also have similar problem with external 1TB drive, but it's NTFS.

    Any helpful guidance would be much appreciated.

  2. #2
    Join Date
    Apr 2011
    Location
    Maryland
    Beans
    1,461
    Distro
    Kubuntu 12.04 Precise Pangolin

    Re: Can't mount internal hard disks Ubuntu 12.04

    Would you mind posting the contents of your fstab file along with the results of the following two commmands:

    Code:
    sudo blkid; ls -l /media/
    That will help to determine the mount data is correctly configured in fstab.

  3. #3
    Join Date
    Apr 2010
    Beans
    8

    Re: Can't mount internal hard disks Ubuntu 12.04

    Output of sudo blkid:
    [sudo] password for wmg:
    /dev/sda1: UUID="7f3d522a-dfa3-45f6-b831-1b933901284e" TYPE="ext4"
    /dev/sda5: UUID="01573ec3-c61e-42d0-96ea-789af673ea4f" TYPE="swap"
    /dev/sdb1: LABEL="2nd_drive" UUID="b98c2b87-209c-4bc3-b144-f892e8c0feed" TYPE="ext4"
    /dev/sdc1: LABEL="3rd_disk" UUID="99d6d64d-16d3-40ba-9082-e347280cb8a7" TYPE="ext4"
    /dev/sdd1: LABEL="Lexar" UUID="7CE8C832E8C7E88A" TYPE="ntfs"

    Output of ls -l /media:
    total 16
    drwxr-xr-x 2 root root 4096 Aug 30 21:20 2nd_disk
    drwxr-xr-x 2 root root 4096 Aug 29 14:43 3rd_disk
    drwx------ 1 wmg wmg 8192 Aug 29 12:22 Lexar

    Contents of my /etc/fstab:
    # /etc/fstab: static file system information.
    #
    # Use 'blkid' to print the universally unique identifier for a
    # device; this may be used with UUID= as a more robust way to name devices
    # that works even if disks are added and removed. See fstab(5).
    #
    # <file system> <mount point> <type> <options> <dump> <pass>
    proc /proc proc nodev,noexec,nosuid 0 0
    # / was on /dev/sda1 during installation
    UUID=7f3d522a-dfa3-45f6-b831-1b933901284e / ext4 errors=remount-ro 0 1
    /dev/sda/media/2nd_disk was on /dev/sdb1 during installation
    # UUID=b98c2b87-209c-4bc3-b144-f892e8c0feed /media/2nd_disk ext4 0 2
    # /dev/sda/media/3rd_disk was on /dev/sdc1 during installation
    UUID=99d6d64d-16d3-40ba-9082-e347280cb8a7 /media/3rd_disk ext4 defaults 0 2
    # swap was on /dev/sda5 during installation
    UUID=01573ec3-c61e-42d0-96ea-789af673ea4f none swap sw 0 0

    Note that the last text line in fstab ends with an EOL character.

    Regards,
    Will Grove

  4. #4
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
    Beans
    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Can't mount internal hard disks Ubuntu 12.04

    You have comment uncommented and the mount commented. And on the first you are missing the default.

    #/dev/sda/media/2nd_disk was on /dev/sdb1 during installation
    # UUID=b98c2b87-209c-4bc3-b144-f892e8c0feed /media/2nd_disk ext4 defaults 0 2
    # /dev/sda/media/3rd_disk was on /dev/sdc1 during installation
    UUID=99d6d64d-16d3-40ba-9082-e347280cb8a7 /media/3rd_disk ext4 defaults 0 2
    Add first red #, remove second red # and add the defaults.
    sudo cp /etc/fstab /etc/fstab.backup
    gksu gedit /etc/fstab

    run this to see if you get any errors. If it just returns then it is ok.

    sudo mount -a
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







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