Yosemite + Bootcamp Win 8.1 = Not working?

[Padmini]

Running a 2012 Mac mini...

Previously did Bootcamp during Mavericks with a Win 8.1 ISO on thumb drive, all created and run through BootCamp Assistant. No issues.

Just did a clean install of Yosemite, and formatted the drive before hand.

Now trying to Redo Bootcamp. The Bootcamp assistant works up until the install process. When it reboots, I get a black screen with "No bootable disc" message.
Rebooting again and holding option shows me my OS X volume, recovery, and EFI Boot (the thumb drive).

There is no Bootcamp partition shown, and the install is obviously not complete. Booting to the EFI Boot yields yet another road block, as I cannot get passed formatting in the Installer.....When I get to the partition selection/formatting screen it won't let me proceed, when I expand the error message it tells me that partition can't be used because it has a GPT partition table.

I am stumped. I am looking to see if anyone has any suggestions, as I've done this a million ways and a million times before, and under Yosemite I can't seem to do Bootcamp.

 

[Fimeg]

EFI Install of Windows 8.1 is inherently difficult. The best instruction I can give you is to follow this guide: http://gadgetunit.com/2012/12/28/tutorial-install-windows-8-on-a-mac-via-native-efi-video/


Skip to part 3a and begin from there. You'll be up and running in no time.

 

[Padmini]

I appreciate the instructions, but I don't see why all of the sudden I'm forced to use EFI boot.

As far as I'm concerned, this is not how Bootcamp is supposed to work. It is broken.