I am attempting to set up a system with 3 separate OS's (Windows 7, 8.1, and 10 TP) all on three separate SSD's. I can currently boot into each one if I use a boot override via the UEFI BIOS on my MoBo but for ease (and for my wife) I am hoping to be able to choose my OS using a bootloader option.
If my wife wants to use Win8 I don't want her having to spam F2 when booting and having to know the name of the drive in the bios to select it.
I have tried to use EasyBCD to manually add the other OS's into the boot loader via their drive letters but to no avail. It will show the options on the bootloader but all but the primary OS will give me a failur message (I have tried from both Win7 and 8.1). I am assuming this is because the BIOS requires me to boot from the "Windows Boot Manager" and will not allow booting by choosing the drive directly. I have also tried using the "bootrec /rebuildbcd" command in recovery mode of both Win7 and 8.1 to manually rebuild the bootloader but it will only see two of the three OS's and fails with a "Could not find specified file" message anyway.
Does anyone have any suggestions?
Is there any way to install a different bootloader such as GRUB in a Windows only environment?
If I were to re-partition one of the OS disks and install Ubuntu on it could I set up a proper bootloader that way?
Update 1: After a little more research I realized that I am using a UEFI system so easyBCD will not do any good. Does anyone know of a way to get UEFI OS's to show up in a boot menu?