How To - Apply Mac OS X Upgrades

Ben Greiner -

Created by Forget Computers, Ltd. Adapted from The X Lab.

NOTE: because Forget Computers can not be onsite with updates in hand, it may be necessary to download several updates. This is not a problem, but will cause the upgrade process to take several hours. These hours are not billable, we just want to be clear that this process takes time.

Performed by Client

Assure your hard drive is in good order. There’s no point in reinstalling the operating system before correcting any potential hard drive corruption.
  1. Start up your Mac in Single-user Mode:
    1. Hold down Command-S while you turn on your Mac.
    2. At the prompt type “applejack auto restart” and hit return.
    3. Wait several minutes. Your Mac will restart when repairs are completed.
  2. Next, start up from your Mac OS X v10.x Install Disc and run Disk Utility > Repair Disk to be sure there are no problems with your hard drive.
  3. If your system is in good working order with no problems, you may perform the Upgrade from Tiger to Leopard instead of doing an Archive and Install, which involves quite a bit more work. Archive and Install information is listed below if needed.
Perform the Archive and Install.
  1. Start up from your Mac OS X Install Disc 1 or Install DVD.
  2. Select your language. The Welcome to the Mac OS X Installer window appears.
  3. Click Continue. The Important Information window appears.
  4. After reading or printing the information, click Continue. The Software License Agreement window appears.
  5. After reading or printing the information, click Continue.
  6. An agreement sheet appears. If you agree with the license agreement, click Agree. The Select a Destination window appears.
  7. Click the volume that you wish to install to.
  8. Click Options. The installation options sheet appears.
  9. Select Archive and Install.
  10. You should also select Preserve Users and Network Settings, to preserve network and Home directory settings.
  11. Click OK.
  12. Click Continue and follow the prompts to begin the installation.
  13. Walk away and come back in about 20 minutes.
After performing the Archive and Install:
  1. Run Disk Utility > Repair Disk Permissions.
  2. Install the Mac OS X Combo Update approved by Forget Computers.
  3. Run Disk Utility > Repair Disk Permissions again (after restarting your Mac).

Performed by Forget Computers

  • Assure your third-party applications are running properly. Third-party applications you have installed in the Applications folder are copied intact to the Applications folder of the new Mac OS X installation. However, some third-party applications may not work after performing an Archive and Install. Therefore, it is important to test all of your third-party applications to assure they are running properly after an Archive and Install. Third-party applications that do not work correctly may need to be uninstalled, then reinstalled.
  • Delete the Previous Systems folder.
    Once you are satisfied your system is operating properly, delete the Previous Systems folder.
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