>> ... upgraded its firmware to allow the use of the "full" 3GB of RAM >> that the hardware can control). > 2 GB here. Should upgrade. > Your drive has GPT; boot with UEFI; correct?
FWIW, I used MBR/legacy booting, because I was more familiar with it.
[ Also, because Apple's early EFI boot systems weren't well supported by
the Linux world of UEFI support, IIRC. I tend to blame Apple for
that, but that's just the result of my bias. ]
Stefan

