iMac 2010 boot From USB with Windows keyboard ALT key - YouTube
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How to install Linux on a Macintosh and dual boot with macOS — The Ultimate Linux Newbie Guide
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install - Installing macOS on a new HDD from USB drive stuck on grey screen with Stop sign - Ask Different
So bricked my real mac by accidentally installing the clover tool to it instead of the USB when making a bootable USB a week ago. It was Catalina on a APFS drive :
Install Windows 8 with Boot Camp on Yosemite with USB key
My Mac Won't Start or Boot: How To Fix White Screen - AppleToolBox
iMac wont let me choose boot option - Apple Community
Comment installer macOS High Sierra - Tutoriel de réparation iFixit
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Make a bootable USB flash drive to run & repair Mac OS X | MacYourself
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How to start up your Mac from a bootable CD/DVD, USB thumb drive or external storage device
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21.5" iMac Mid 2010 Won't Boot from USB to Install High Sierra - Ask Different
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How to start up your Mac from a bootable CD/DVD, USB thumb drive or external storage device
How to Create macOS Sierra Bootable USB Installer on Windows 10?
