Thread: Mac won't boot
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Steve Austin

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Member Since: Dec 05, 2010
Location: London U.K.
Posts: 68
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Mac Specs: Mid 2010 27" 2.93GHz Intel Quad Core i7 iMac 12Gb Ram OS X 10.8.5 / 10.10

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Press & hold the option key (alt) when re-booting (before grey screen),
This should give you the option to boot into os x or whatever other os you have.

Looks like your mac has no startup disk selected.

Worth a try.

Steve Austin.
A man barely alive.
Gentlemen, we can rebuild him.
We have the technology.
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