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Thread: Primary master (HD) not detected

  1. #1
    Join Date
    Dec 2008
    Beans
    106

    Primary master (HD) not detected

    Hello,

    Today I had to reboot my system and while booting I noticed the slowness of the booting process. In the end it complained it could not find the HD. It stopped with the following message
    Code:
    Error: no such device 848 [...etc...] 1f5c
    Grub rescue
    I then put my rescue DVD with Live Ubuntu in the CDRom drive, and found out I only had one HD, the one with only data on it. The one with my bootloader and OS'es was lost. Next I went to the shop, came back to try to rescue my system, and I had my normal Grbub bootloader again.

    Only within six months I had to replace the partition with my home directory as it was riddled with bad blocks. I cleaned out another partition, and copied all my files and directories to that new partition. Anyway, you would think the harddisk is suspect. Should I buy myself an new HD (and Windows OS, sigh) and copy everything to the new HD?

    Macamba

  2. #2
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
    Beans
    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Primary master (HD) not detected

    Do you regularly run chkdsk on all NTFS partitions. Ubuntu will run fsck on every 40 to 60 reboots.

    What does Smart data show. You can see it from Disks or Disk Utility, click on drive. All I know is passed is good and anything else is not. But it can run a variety of tests. Growing number of bad blocks usually is a bad sign, but just a few is not abnormal.
    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.







  3. #3
    Join Date
    Dec 2008
    Beans
    106

    Re: Primary master (HD) not detected

    Looking at the 'Disk Utility' the SMART Status gives a 'Disk has a few bad sectors'. Pressing the 'SMART Data' opened a window with problems in:
    • Reallocated Sector Count (Normalized/Worst 96, Threshold 10, Value 182 sectors)
    • Current Pending Sector Count (Normalized/Worst 87, Threshold 0, Value 529 sectors)


    The 'Disk Utility' was looking at the HD with the Windows and Linux partitions. Selecting the volumes with the root partition and so on did not alter the status of the 'SMART Data'.

    Am I correct in concluding my HD is slowly dying?

  4. #4
    Join Date
    Dec 2008
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    106

    Re: Primary master (HD) not detected

    I also performed a CHKDSK on the OS partition of Windows and found two damaged clusters. So, should I conclude my HD is dying?

  5. #5
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
    Beans
    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Primary master (HD) not detected

    If it says passed it should still be a working drive. But is starting to go. It could last years or fail in 5 minutes.
    And even good drives something crash unexpectedly. Good backups are the only solution.

    I just looked at my drives. Two passed and have no issues. One 7 year old drive shows one bad sector but still says passed. Once one of my drives gets past about 3 years (no matter what warrantee is) it is demoted to less important activity, so data may be on-line, but is also backed up somewhere else also. And I have had a one year old drive totally fail.
    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.







  6. #6
    Join Date
    Dec 2008
    Beans
    106

    Re: Primary master (HD) not detected

    Thanks. So I better look for a new HD (and what makes it more expensive Windows 7).

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