I would like to use Boot Camp Assistant to partition my HD, reserving around 30 GB for Ubuntu. I would then have a dual OS X Yosemite and Ubuntu Linux system.
This used to be fairly easy. Boot Camp Assistant would partition the HD, then you could quit, and then using some boot manager software like rEFIt (now rEFInd), you could use that reserved space to install Ubuntu.
Now, I'm not so sure. Boot Camp Assistant gives me three options:
(1) Create a Windows 7 or later version install disk (2) Download the latest Windows support software from Apple (3) Install Windows 7 or later version
For (1), I need a Windows ISO image. I cannot do with without a Windows product key.
(2) just downloads Windows support software to a 16 GB USB port of mine, and then...Boot Camp Assistant quits.
(3) doesn't work, as apparently I need an installer disc.
How should Yosemite use Boot Camp Assistant to partition their HD? Why is Apple doing this to us?