2011 27"imac no osx

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2011 27"imac no osx

Recently , well yesterday in fact I got my daughter a 27" image 2011 version. The person I got it from hadn't been able to update its osx , tonight I turned it on after trying to delete previous persons info ie apple id etc went to turn it on and no osx , goes to disk utility ,reinstall osx,install from time machine and online help, tried reinstall gets so far then says can't install missing components,I've downloaded high Sierra from my other imac to an external hard drive but cannot discover how to use this to install. From yes tried YouTube Google etc I've pressed 3 buttons on start up 2 buttons and my heads battered , is there a way to connect via Ethernet and apple install it please help

iMac, OS X 10.11

Posted on Apr 19, 2024 1:19 PM

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Answer 1

Apr 19, 2024 5:17 PM in response to tman68

tman68 wrote:

I've downloaded high Sierra from my other imac to an external hard drive but cannot discover how to use this to install.

On the newer Mac, use the High Sierra link in How to download and install macOS - Apple Support to do a clean installation of High Sierra onto an external hard drive.

Transfer that external hard drive to the old Mac, and start up from it.

Now you can

Clone the external High Sierra system onto the internal drive (using Disk Utility and a program such as Carbon Copy Cloner or SuperDuper), or
Do a clean install of High Sierra on the internal drive, using Safari and the Apple Support article (but this time, running on the old Mac).

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