I'm searching for goods kernel options for booting my macbook. The issue is that only one cpu is working as it is a 2 core cpu (macbook 2,1 - Intel core 2 Duo).

My macbook is booting fine with "nolapic" option with only one cpu
It is booting fine with apci=off but it does not monitor battery, and only one cpu.
It is not booting with noapic option or acpi=force irqpoll.

I instal grub-efi, but I do not know to use/activate it.

Please advice...