It seems that there are several problems releated to incompatibilities between Apple-EFI and UEFI that do prevent Apple users from easily using USB drives to install or even run other operating systems.
I am planning to make this a quick guide, so others will not loose precious time encountering the same problems as me.
It seems that the latest ISO of Ubuntu that has the UEFI removed in order to be able to boot on Macs is 12.04.3
What I did so far:
- Tryed YUMI with mac blend of the ISO and it produces a disc that is recognized by rEFInd but that gives "Missing Operating System" when trying to load it..
- unetbootin tool works on OS X, Linux or Windows BUT it will not create USB disks that will work on Macs.
- Tried penguintosh.com with both Ubuntu ISOs and none of them works, it does run and creates the USB disc but it's not recognized by Mac EFI or rEFInd.
So, how can I create an USB disk that will install Ubuntu on Mac, preferably latest version Ubuntu.
Note: Assume that I do not want to keep anything on the Mac, the USB has to be bootable and any use of DVD drive is excluded.