Hi,

I'm trying to create a bootable usb key with linux (debian) and that can be booted on Macintel hardware.

I have read that MAC's EFI can only boot GPT GUID formatted disks. I'm desperately trying to find a good tutorial which explains how to create such a key.

Here what I have done so far:

• create a GUID partition on te key using linux GNU parted
• create a HFS+ or ext3 partition on the key, with the boot flag on
• install a linux .iso with unetbootin

While all steps were successfull and in some cases I could even boot on a PC, the step of booting on Macintel software failed (on a macbook). I need to precise that I holded the "alt" key while booting the mac and the only visible bootable disk was the hard disk.

Thanks for any advice.

PS: I have tried with rEFIt as well. In one case I had a "windows" icon but it then failed to boot with a message like "no system found"