You need the intermediate upgrade from OS X 10.4.11 to OS X 10.5 (Leopard) before you can upgrade to OS X 10.6 (Snow Leopard).
Hello all you fine people. So I have a Macbook w Intel Core Duo processor.
The dvd for the Macbook is unable to read dvds, so I've hookedup up an external DVD drive. I put the Snow Leopard 10.6 cd in and it pulls right up. I click the option to Install and it prompts me to restart to begin the installation process.
I click Restart and when the Mac begins to boot up it then won't start the installation. The external dvd just spins a little and makes some noise and on the screen it shows a cirle with a line through it, then it will show a file folder with a question mark, but nothing more.
Does anyone have any ideas of what I can do to get my OS X updated? FYI - the Snow Leopard dvd I just received from Apple.com for $29.
Thanks!

Chowhound
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