Hi gurus!

To anticipate our beloved 'google it' reply, well I did. And guess what, 10 people say 10 different things and none of them work.

The setup is quite simple actually. 3 separate drives:
* (hd0) Ubuntu and Grub - MBR (PATA)
* (hd1) Data drive - MBR (SATA)
* (hd2) OSX drive (retail Leopard and Chameleon) - GUID (SATA)

The goal is to boot OSX from Grub. This has never been a problem before when I had one of the chipped Leo distros on a MBR drive. With a GUID drive things seem to be quite different.

BTW the OSX drive boots perfectly on its own when set as first boot device in the BIOS.

I've tried the following and basically any imaginable combination of them.

title Leopard
root (hd2,0)
makeactive
chainloader +1

or

title Leopard
rootnoverify (hd2,0)
makeactive
chainloader +1
boot

yield message:

Non-system disk - press any key to reboot


title Leopard
root (hd2,0)
kernel /boot/boot
boot

or

title Leopard
root (hd2,0)
makeactive
chainloader +1
kernel /boot/boot
boot

or

title Leopard
rootnoverify (hd2,0)
makeactive
chainloader +1
kernel /boot
boot

or
title Leopard
root (hd2,0)
kernel /boot/boot
modulenounzip /boot/initrd.img

yield message:

Error 17: cannot mount selected partition

I even tried to set
chainloader +2
as I've noticed that a GUID HD has an extra EFI partition on it and the actual system partition is on hdX,2. I also tried all of the previous with (hd2,1) or (hd2,2)

I assume that I'm missing some extra code/ instruction/ development wizardry on this one. Something you can only know if ...err... somebody told you how to do it correctly

Any clue from a brilliant tech head is much appreciated.

cheers