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TS1440: A flashing question mark or globe appears when you start your Mac

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TS1440 Mac OS X Installer doesn't show HD.

804 Views 8 Replies Latest reply: Dec 8, 2012 2:41 PM by MTC13 RSS
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Dec 7, 2012 3:23 PM

My iMac crashed.  When I try to boot I get a flashing "?".  Now, I'm trying to reboot from cd but the installer doesn't recognize the HD.  I've tried Disk Utility and Restore System, but "Macintosh HD" isn't visible in the menu.  The only disk in the menu is the MacOsX Install Disc.

Bad, yes?

iMac, Mac OS X (10.6.8)
  • tzbikowski Level 4 Level 4 (1,945 points)
    Currently Being Moderated
    Dec 7, 2012 3:25 PM (in response to MTC13)

    right, quite bad.

    trip to Apple Genius or DIY hard drive replacement.

  • Kappy Level 10 Level 10 (221,095 points)
    Currently Being Moderated
    Dec 7, 2012 3:27 PM (in response to MTC13)

    Your drive has apparently crashed badly. When you open DU do you see anything listed in the sidebar? Most likely you will have to try reformatting the drive before you will know if the drive has failed completely.

     

    Drive Preparation

     

    1. Boot from your Snow Leopard Installer Disc. After the installer loads select your language and click on the Continue button.  When the menu bar appears select Disk Utility from the Utilities menu.

     

    2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area.  If it does not say "Verified" then the drive is failing or has failed and will need replacing.  SMART info will not be reported  on external drives. Otherwise, click on the Partition tab in the DU main window.

     

    3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.

     

    4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.

     

    5. Set the format type to Mac OS Extended (Journaled.) Click on the Security button, check the button for Zero Data and click on OK to return to the Erase window.

     

    6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.

     

    After formatting has completed quit DU. Complete the installation of Snow Leopard.

  • Kappy Level 10 Level 10 (221,095 points)
    Currently Being Moderated
    Dec 8, 2012 9:07 AM (in response to MTC13)

    A local store is fine for buying a new hard drive. But if you have them install the drive be sure they know how to do that on an iMac. Taking one apart is not a trivial task. A shop manual would be needed or prior experience with iMacs.

  • LexSchellings Level 5 Level 5 (5,505 points)
    Currently Being Moderated
    Dec 8, 2012 10:47 AM (in response to MTC13)

    I am still thinking your disk may be dying slowly. Make sure that you make backups even more regularly.

    When the disk is going down the next time, do not bother too much about trying to revive it: harddisks are very cheap, you just buy the right size and replace the old one. An old revived disk will sonn die again.

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