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 Mac from USB | Mac Won't Boot from USB Troubleshooting
Adding USB3.0 to late 2009 iMac (11,1) | MacRumors Forums
NEW METHOD: How to boot from USB on ANY PowerPC Mac! - YouTube
boot - Four display images when live USB booting Ubuntu on an iMac - Ask Ubuntu
How to force my 2011 iMac to boot up from a USB drive with a MacOS installer on it - Quora
MacBook Pro mid 2009 won't boot from exte… - Apple Community
macos - MacBook does not list my bootable USB stick in the boot menu - Ask Different
Create a bootable usb for old iMac | MacRumors Forums
iMac Late 2009 - Bluetooth and USB keyboard and mouse do not work on Big Sur installation screen · Issue #43 · barrykn/big-sur-micropatcher · GitHub
Late 2009 iMac, completely wiped hard drive, cannot boot from usb, holding option brings white screen with mouse : r/mac
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
What to Do When Mac Doesn't Boot from USB - Mac Data Recovery
I got a 2009 iMac but it's got a password, any way to factory reset it? : r/ mac
How to Create a Bootable Install USB Drive of macOS 10.12 Sierra « Mac OS Tips :: Gadget Hacks
boot - Installation of Ubuntu 18.04 on iMac 21,5-inch late 2009 - Ask Ubuntu
iMac 2009 option key does not show boot o… - Apple Community
iMac won't boot from USB, white screen + … - Apple Community
iMac 2010 boot From USB with Windows keyboard ALT key - YouTube
How to replace & install a iMac hard drive - Bootable USB, Loud Fan Fix - YouTube
Replacing an iMac Hard Drive with an SSD
How to make your own bootable OS X 10.11 El Capitan USB install drive | Ars Technica
The OptionKey Blog: Installing Windows 10 on old Intel Apple Hardware
Need Target Disk Mode from iMac 2009 to i… - Apple Community
How to start up your Mac from a bootable CD/DVD, USB thumb drive or external storage device
