Old iMac won't boot. Tried to boot Linux via USB, but got this awesome effect. I suspect a failing GPU. : r/techsupportgore
MacBook Pro mid 2009 won't boot from exte… - Apple Community
Mac OS Snow Leopard 10.6 Bootable USB - Mac Medic Store
boot - Four display images when live USB booting Ubuntu on an iMac - Ask Ubuntu
Need Target Disk Mode from iMac 2009 to i… - Apple Community
iMac 2009 Stuck in Boot Screen - Apple Community
What to Do When Mac Doesn't Boot from USB - Mac Data Recovery
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
iMac 2009 option key does not show boot o… - Apple Community
Create bootable Windows 10 installation USB from macOS - YouTube
iMac wont let me choose boot option - Apple Community
macos - MacBook does not list my bootable USB stick in the boot menu - Ask Different
Late 2009 iMac, completely wiped hard drive, cannot boot from usb, holding option brings white screen with mouse : r/mac
Tech Tip: How to Boot and Use a Mac in Target Disk Mode
How to replace & install a iMac hard drive - Bootable USB, Loud Fan Fix - YouTube
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
I got a 2009 iMac but it's got a password, any way to factory reset it? : r/ mac
Adding USB3.0 to late 2009 iMac (11,1) | MacRumors Forums
2009 iMac hangs on startup. Get to half w… - Apple Community
How to start up your Mac from a bootable CD/DVD, USB thumb drive or external storage device
Create a bootable usb for old iMac | MacRumors Forums
The OptionKey Blog: Installing Windows 10 on old Intel Apple Hardware
