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Apple Desktops Discussion of Apple's desktop machines including Mac Pro, iMac, Power Mac, and mini

imac wont boot!


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aarong

 
Member Since: Jul 23, 2012
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I have a intel imac from 2010. About a week ago the imac stopped booting osx but continued to let me use windows on a separate partition of the same hard drive. I have erased, reformatted, verified and repaired the hard drive using disk utility and reinstalled osx (10.6) the smart status is also verified.

The mac will still not boot. However if i put the imac into firewire mode my macbook will boot using the imac's hard drive. Ruling out a problem with the hard drive itself.

Also putting the macbook into firewire mode and booting the imac from the macbook's hard drive also works! So i really dont know what the problem can be?
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Lifeisabeach

 
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That is extremely odd. My only real suggestion right now is to try resetting the PRAM. It stores a number of settings, including some related to the startup disk.
Resetting your Mac's PRAM and NVRAM


Please verify and include the exact model/year of your Mac and OS X version number (available from "About This Mac", then "More Info" on the Apple menu). Also advise us if you have any antivirus or "cleaning" software installed on your Mac. If you are using MacKeeper, you are hereby advised to uninstall it.
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Links to commonly recommended software and instructions: Onyx | Apple Hardware Test | How to test your hard drive | How to reveal the User Library
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