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Boot iMac from USB for screen sharing only

Hi Folks,

I have a 27" iMac that appears to be having some issues with the hard drive at the moment. This week the iMac has started shutting down half way through boot.

I don't actually use this iMac for anything other than being a second screen for my other iMac. But now that it won't boot I cannot get it to the point of switching it to be a secondary screen. (CMD + F2)


It is not urgent for me to use it as anything other than a second screen, so I was wondering if there was an easy way to get it to boot (from USB, etc) where I could use it as a second screen until I have the time to get the drive swapped out?


I hope that makes sense. Thank you for any advice in advance.

Posted on Jun 29, 2015 10:19 PM

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Boot iMac from USB for screen sharing only

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