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Installing OS X 10.5 Leopard - Erase and Install Method for OS X 10.5 Leopard

By Tom Nelson, About.com

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Installing OS X 10.5 Leopard - Choosing Leopard Installation Options

OS X 10.5 Leopard has multiple installation options, including Upgrade Mac OS X, Archive and Install, and Erase and Install. This tutorial will guide you through the Erase and Install option.

Installation Options

OS X 10.5 Leopard offers installation options that allow you to select the type of installation and the hard drive volume to install the operating system on, as well as customize the software packages that are actually installed. While there are lots of options available, I’ll take you through the basics to complete the Erase and Install of Leopard.

  1. When you completed the last step, you were shown Leopard’s license terms. Click the ‘Agree’ button to proceed.

  2. The Select a Destination window will display, listing all of the hard drive volumes that the OS X 10.5 installer was able to find on your Mac.

  3. Select the hard drive volume you wish to install OS X 10.5 on. You can select any of the volumes listed, including any that have a yellow warning sign.

  4. Click the ‘Options’ button.

  5. The Options window will display the three types of installations that can be performed: Upgrade Mac OS X, Archive and Install, and Erase and Install. This tutorial assumes that you will choose Erase and Install. If you don’t intend to erase the selected hard drive volume, do not proceed any further with this tutorial, because all of the data on the selected hard drive volume will be lost during the installation.

  6. Select ‘Erase and Install.’

  7. Use the ‘Format disk as’ dropdown menu to set the formatting options to ‘Mac OS X Extended (Journaled).’

  8. Click the ‘Continue’ button to erase and format the selected hard drive volume.

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