How can I install Arch onto a Macbook Air 2014? I'd also like this to be on an External Hard drive. I know how to boot into the BIOS and everything, I just feel like none of the guides have helped me. None of the have worked and I feel like there are extra steps I should take.
The Arch Linux Wiki has a page just for installing Arch on a MacBook. In there, someone reported that:
Some MacBook users report strange keyboard output such as long delays and character doubling. To fix this problem, boot with the following options:
arch noapic irqpoll acpi=force