Hot answers tagged mac
Which ISO did you try? I think only the x86_64 is efi bootable. Installed 15.10 from usb on a MacBookPro5.3 recently - everything except wifi and the nvidia 9400M, 9600M GT combo worked. Had to boot with nomodeset to get unaccelerated graphics to work (accelerated works with nvidia drivers).
The problem lies in the fact that your mac has a 32 bit efi boot loader and is unable to address 64 bit boot schemes. This means that any 64 bit os will have a 64bit boot loader and so your mac won't be able to see it. There are two options that I have discovered for my mac pro 1.1. The first is to use unetbootin to put ubuntu on to a usb stick and then ...
OSes sometimes reset the default boot program, particularly if they upgrade their standard boot loaders. There's really no way to prevent this from happening, so you must simply know how to correct the problem when it occurs. In Linux, this is done by using the efibootmgr program. In OS X, it's done via bless. See here for more on efibootmgr. If this ...
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