How to Make a Bootable System Disk for a Mac

Written by hollan johnson
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How to Make a Bootable System Disk for a Mac
(Hemera Technologies/ Images)

Disk Utility, a utility application standard on all OS X Mac computers, allows users to create bootable dmg files and burn them to disks. Any version of Mac OS X higher than 10.3 can use Disk Utility to burn a backup copy of a system disk, be it a Mac system disk or another system disk such as Linux or a PC.

Skill level:

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Things you need

  • Mac OS X 10.3 or higher
  • DVD-R or Dual Layer DVD-R

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  1. 1

    Place the system disk in your Mac computer's optical drive. Open “Disk Utility” in the Application/Utility folder.

  2. 2

    Select the system disk from the list of available drives on the left side of the window. Select “New Image” from the toolbar at the top of the window.

  3. 3

    Name the image. Select “DVD/CD master” from the Format menu and “None” from the Encryption menu. Click “Save.”

  4. 4

    Select the newly created disk image from the left-hand window in Disk Utility. Click “Burn.” Insert a DVD-R or dual layer DVD-R when prompted. Click “Burn.”

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