Create an empty .dmg image

1. Open “Disk Utility”


Open the Mac OS X utility called “Disk Utility”. It can be found in the “Applications” folder and inside the “Utilities” folder. Or… be cool and use spotlight to open the application.

2. Click “New Image”

Screenshot on 2009-06-28 at 2.09.52 AM

3. Name .dmg, image, and set options

Screenshot on 2009-06-28 at 2.11.07 AM

  • Size: Size of image
  • Format: How the image file is constructed (The default will meet most needs)
  • Encryption: No need for this if you are creating the image to burn to a disk
  • Partitions: Ditto
  • Image Format: read/write disk image will meet most needs

4.  Click create and find your creation

Screenshot on 2009-06-28 at 2.12.24 AM5. Open image and drag and drop your files into it

Screenshot on 2009-06-28 at 2.13.14 AM6. Eject image once you are done filling

Screenshot on 2009-06-28 at 2.13.41 AM

7. Now the .dmg can be burned to a disk or you can just keep it. Double click the .dmg to mount the image.