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How to start up your Mac from a bootable CD/DVD, USB thumb drive or external storage device
What to Do When Mac Doesn't Boot from USB - Mac Data Recovery
Tech Tip: How to Boot and Use a Mac in Target Disk Mode
Mac OS Snow Leopard 10.6 Bootable USB - Mac Medic Store
iMac Late 2009 - Bluetooth and USB keyboard and mouse do not work on Big Sur installation screen · Issue #43 · barrykn/big-sur-micropatcher · GitHub
Old iMac won't boot. Tried to boot Linux via USB, but got this awesome effect. I suspect a failing GPU. : r/techsupportgore
How to Boot a Mac from an External Drive or Alternate Startup Disk | OSXDaily
iMac 2010 boot From USB with Windows keyboard ALT key - YouTube
MacBook Pro mid 2009 won't boot from exte… - Apple Community
How to replace & install a iMac hard drive - Bootable USB, Loud Fan Fix - YouTube
macos - MacBook does not list my bootable USB stick in the boot menu - Ask Different
How to Boot Mac from USB | Mac Won't Boot from USB Troubleshooting
How to Create a Bootable Install USB Drive of macOS 10.12 Sierra « Mac OS Tips :: Gadget Hacks
iMac won't boot from USB, white screen + … - Apple Community
I got a 2009 iMac but it's got a password, any way to factory reset it? : r/ mac
iMac 2009 option key does not show boot o… - Apple Community
macOS High Sierra 10.13 Bootable USB - Mac Medic Store
How to create a MAC OS USB Bootable Drive - YouTube
Adding USB3.0 to late 2009 iMac (11,1) | MacRumors Forums
Got a iMac Late 2009 model A1311 for a very good price, made a bootable USB drive for El Capitan and this shows up. any ideas? All help is appreciated : r/mac
How to make your own bootable OS X 10.11 El Capitan USB install drive | Ars Technica
Create a bootable usb for old iMac | MacRumors Forums
boot - Installation of Ubuntu 18.04 on iMac 21,5-inch late 2009 - Ask Ubuntu
2009 iMac hangs on startup. Get to half w… - Apple Community
Got a iMac Late 2009 model A1311 for a very good price, made a bootable USB drive for El Capitan and this shows up. any ideas? All help is appreciated : r/osx
Replacing an iMac Hard Drive with an SSD
NEW METHOD: How to boot from USB on ANY PowerPC Mac! - YouTube