I'm moving my computer from a dual boot (Windows 7, Ubuntu 14.04) to a triple boot (Windows 7, Ubuntu 14.04, Mac OS X 10.9). I currently use Grub to start up my computer into either Windows or Ubuntu. I've done dual boot installs about 5 times on 2 different machines in the past, but I've never had the booting work through Grub. Normally I have to use Windows' boot menu. I'm not sure, but I think it had something to do with the order I installed the OS' in (Windows, then Ubuntu).
So essentially, what order should I install my operating systems in in order to use Grub as my boot menu? The partitioning is Windows 7 on a 128GB ssd by itself, and another 128GB ssd drive split between Ubuntu and Mac. I know this is a Ubuntu-based Q&A board (didn't know where else to put it) so what I'm looking for is information on what Ubuntu does to the boot process when it is installed.