For starters I have looked over EFI Boot: Two independently bootable physical hard drives? but TBH it's a little complicated for me, maybe just because I'm unfamiliar with the terminology. All I know is that I am using BIOS:
IBS Callback_BootEnvironmentDetect: Detected boot environment: BIOS
Also I know 100% I can physically swap PHYSICAL HDD's and "dual boot" because I attempted it on my legacy pc; just curious about having multiple HDD's in my pc and using BIOS to switch/select which HDD to boot from..
Basic question; just wanted to ask if I changed the boot order from BIOS would that be enough to avoid the whole concept of a boot loader? i.e. didn't have to worry about partitions or boot/active flags or physically swapping HDD's.. Looking for an easy way to have multiple OS's w/o messing with a bootloader or boot/active flags; definitely using physical HDD's and not getting into primary/extended/logical partitions, though I am familiar with the differences I still wanted to have them on completely different PHYSICAL drives. Thanks!