How to clone a Snow Leopard Install DVD


For most people there is absolutely no need for a DIY install DVD for the “world’s most advanced system”. However paranoia does run roughshod over some people’s psyche (not forgetting people who obtained the OS through more clandestine methods) and hence this howto :

1. After upgrading /installing Snow Leopard (optional as you can also follow the same procedure within Leopard), fire up Disk Utility

2. With the original DVD still in the tray, select it from the list on the left

3. Go to File > New > Disk Image From “Mac OSX Install DVD”

4. Under “Image Format” select “DVD/CD master”. For encryption select “None”

5. Click on save and go for a jog

6. You should end up with a file ending with “.cdr” in which ever folder you saved it in. (by default “Documents”)

7. I then used Toast Titanium version 10 to burn it as a Disc Image.

8. The end product is a shiny cloned install disk. The most important thing is that it is bootable.

NB – I initially chose the option “read/write” under “Image Format” but ended up with a non-bootable DVD which is pretty much a coaster.


4 comments on “How to clone a Snow Leopard Install DVD

  1. Do you really need to use Toast to burn the final DVD? Buying Toast would make this more expensive than buying another copy of Snow Leopard! 🙂

  2. You can also use this method– right up until the step of using Toast Titanium– to burn the disc image to an external hard drive. Make a 10GB partition on an external hard drive (do this in Disk Utility: click the external drive, then choose “Partition” on the right). Mount the disk image, then click back on your partition you just created. Choose “restore” on the right. The Source should be the opened disk image, and the destination should be your new partition on your external drive. Now, when you boot your Mac, you can hold “Option” to boot to this partition. You can do this for a lot of troubleshooting, like Archiving and Installing, or you can even create an external partition of a bootable Snow Leopard OS, if you want a separate operating system. Hope this helps!

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