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Possible Duplicate:
Lost Mac DVD, how can I recover?

Unfortunately I lost my OS X cd and for some reasons I need to reinstall the operating system.

How to reinstall a Mac if I don't have the installation cd?


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marked as duplicate by Daniel Beck, Sathya Feb 26 '11 at 17:01

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

You'll need to acquire a Mac OS X install DVD, I'm afraid. If anyone you know has a copy you could borrow it; alternatively a Snow Leopard install DVD is only £26 (Sterling) from Apple. Alternatively, I believe AppleCare will replace your system restore DVD, but there's a cost, and I don't know how large it is.

Be careful when using another Mac's system restore DVD, though - they often contain hardware-specific drivers. At the very least, make sure that the Mac you borrow the restore DVD from is at least as new as yours. Ideally, borrow from one with exactly the same model.

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If I may correct you on the second paragraph: new hardware does usually ship with "custom" Mac OS builds, but the following minor Mac OS updates include everything below; so if you bought a Mac Mini in early 2010 it might have shipped with a custom 10.6.2 (10C2234) but installing a fresh OS X from a DVD that shipped with your latest MacBook (10.6.4, 10F2108) will work totally fine. To determine whether your DVD is "okay", have a look at this list of OX X versions that shipped with the different Mac models: – Asmus Feb 26 '11 at 10:23

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