Comment 10 for bug 1575148

Dear Christopher,
Thank you for your instructions. So far, I have managed to obtain the update from apple, open the dmg and pkg files, and obtain the correct .scap file containing the firmware for my specific apple laptop model. Now the issue is how to apply it, given that the only tutorials out there for updating firmware from linux in apple hardware assume one is booting with EFI.
I do not have macosx available, which is the recommended approach in all tutorials (paraphrasing, "leave a usable macosx install in disk so as to be able to apply firmware updates", which is not even true, given that it can be done from an EFI boot setup).
Do you know of any way to update the firmware without an EFI boot setup?
The pages you pointed to do not have any instructions for apple hardware.
Thanks,
Albert