nuttsy_5

Q: Trying to reboot from external hard drive after failure to upgrade

I Had tried to upgrade to the latest op sys but it crashed. Now I have held the option key down during boot and it finds the install disc but not the ext hd. I tried to run the install disc but it doesn't do anything. Can anyone help?!!!

MacBook Pro

Posted on Aug 22, 2014 10:22 PM

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Q: Trying to reboot from external hard drive after failure to upgrade

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  • by Kappy,Solvedanswer

    Kappy Kappy Aug 22, 2014 10:48 PM in response to nuttsy_5
    Level 10 (271,482 points)
    Desktops
    Aug 22, 2014 10:48 PM in response to nuttsy_5

    You do not have a bootable backup on your external drive or there is a problem with the USB connection between the computer and the external drive. This seems to be a particular problem for some models once upgraded to Mavericks.

  • by nuttsy_5,

    nuttsy_5 nuttsy_5 Aug 22, 2014 11:13 PM in response to Kappy
    Level 1 (2 points)
    Aug 22, 2014 11:13 PM in response to Kappy

    Is there any way tI do it with what I have?

  • by Kappy,

    Kappy Kappy Aug 22, 2014 11:24 PM in response to nuttsy_5
    Level 10 (271,482 points)
    Desktops
    Aug 22, 2014 11:24 PM in response to nuttsy_5

    Well, I don't know what you have to work with. I don't know what computer model you have. What version of OS X was installed before you upgraded? I don't know when the upgrade crashed. I don't know if you have the Mavericks installer. Until you provide a lot more information I'm as in the dark as you are.

  • by nuttsy_5,

    nuttsy_5 nuttsy_5 Aug 23, 2014 12:33 AM in response to nuttsy_5
    Level 1 (2 points)
    Aug 23, 2014 12:33 AM in response to nuttsy_5

    SSorry, 10.6.1 and no mavericks from what I know of unless they came on there

  • by Kappy,

    Kappy Kappy Aug 23, 2014 12:28 PM in response to nuttsy_5
    Level 10 (271,482 points)
    Desktops
    Aug 23, 2014 12:28 PM in response to nuttsy_5

    Then I don't think so. You have an installer disc, I believe I understood you to say earlier, so I would do the following:

     

    Reinstall OS X without erasing the drive

     

    1. Repair the Hard Drive and Permissions

     

    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. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list.  In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.

     

    If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.

     

    2. Reinstall Snow Leopard

     

    If the drive is OK then quit DU and return to the installer.  Proceed with reinstalling OS X.  Note that the Snow Leopard installer will not erase your drive or disturb your files.  After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.

     

    Download and install Mac OS X 10.6.8 Update Combo v1.1.

     

    If you are unable to get it working still, then you will need to do this:

     

    Clean Install of Snow Leopard

     

         1. Boot the computer using the Snow Leopard Installer Disc or the Disc 1 that came

             with your computer.  Insert the disc into the optical drive and restart the computer.

             After the chime press and hold down the  "C" key.  Release the key when you see

             a small spinning gear appear below the dark gray Apple logo.

     

         2. 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.

             After DU loads select the hard drive entry from the left side list (mfgr.'s ID and drive

             size.)  Click on the Partition tab in the DU main window.  Set the number of

             partitions to one (1) from the Partitions drop down menu, click on Options button

             and select GUID, click on OK, then set the format type to MacOS Extended

             (Journaled, if supported), then click on the Apply button.

     

         3. When the formatting has completed quit DU and return to the installer.  Proceed

             with the OS X installation and follow the directions included with the installer.

     

         4. When the installation has completed your computer will Restart into the Setup

             Assistant. Be sure you configure your initial admin account with the exact same

             username and password that you used on your old drive. After you finish Setup

             Assistant will complete the installation after which you will be running a fresh

             install of OS X.  You can now begin the update process by opening Software

             Update and installing all recommended updates to bring your installation current.

     

    Download and install Mac OS X 10.6.8 Update Combo v1.1.

     

    If you do not have any installer disc to use, then you can purchase the retail Snow Leopard DVD:

     

    You can purchase Snow Leopard through the Apple Store: Mac OS X 10.6 Snow Leopard - Apple Store (U.S.). The price is $19.99 plus tax. You will be sent physical media by mail after placing your order.

     

    After you install Snow Leopard you will have to download and install the Mac OS X 10.6.8 Update Combo v1.1 to update Snow Leopard to 10.6.8.