With Altera's free OpenCore Plus evaluation feature, you can perform the following actions: You can perform this tutorial on hardware without a license. So you have two hard drives, both have independent and bootable operating systems when connected individually? The OS which gets booted will be managing the bootloader for the system.
Insert both hard drives and find which hard drive the system boots into.I have installed Windows 7 and Ubuntu in dual mode in different drives. However, some of you may encounter dual boot option missing problem. For some purposes, you may need to dual boot two operating systems like Windows 7 and Windows 10, Windows 8 and Windows 10, a Linux OS and Windows 10, etc.
