I'm having a difficult time installing Ubuntu in my macbook, It's a Macbook White Late 2007 model with Snow Leopard, without a working disk drive so I tried installing via USB (also following instructions specific for Macs).
I've partitioned a 100gb for Ubuntu and installed refind. However Ubuntu refuses and gives me this error message:
"The firmware refuses to boot from the selected volume. Note the external hard drives are not well supported by Apple's firmware for legacy OS booting."
I appreciate the help, thanks in advance!