Hi, I have a 2104 iMac that I want to install elementary on. I can boot from a USB drive and then get presented with an option to enter my wireless network password which I can do no problem - mouse and keyboard working at that point. After doing that I can click on a drive icon on the screen which says EFI Boot (there are 2 of those icons for some reason. I have tried booting from both of them.) It then starts to go through the elementary install process and I get presented with a screen to select my language and thats where I am dead in the water. Both mouse and keyboard are unresponsive at that point. I really want try try elementary but am unable to. Any ideas or help much appreciated. Thanks.
Connect your keyboard with the loading cable to your iMac, so that it works like a USB keyboard for being able to continue. Sadly there are problems with the wirless BluThooth divers in Linux, and I am not experienced enough to help you with this issue. Easiest solution is to get a USB-mouse ;-P