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Level 1

4 points

No OS on 2008 iMac and no USB boot works

Hello, I am trying to reinstall MacOS 10.11 El Capitan on my 2008 iMac and USB Boot will not show up. I have the application on its own on a USB drive and nothing shows other than recovery when I hold options on the Mac. I have tried resetting PRAM, and I don't know if there is any other way or if I am doing it wrong. USB drive is GUID Partition Map, formatted in the MacOS Extended (Journaled) form.

Posted on Jan 28, 2023 6:56 PM

Best reply

Niel

Level 10

728,297 points

Posted on Jan 28, 2023 7:17 PM

Drag-copying the installer only works when there's already an OS on the computer. Click here and create an installation thumbdrive.

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No OS on 2008 iMac and no USB boot works

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