I work for a small business repairing all manner of PC's and Mac's, laptops and desktops etc.
I use GRUB legacy bootloader which pretty much works on anything I deal with for testing hardware.
Memtest, Seatools, etc.
Obviously due to the fact that Windows 8 machines being released; the UEFI firmware is now on just about every new PC.
It's not a big problem for some with switchable legacy BIOS settings, however:
Occasionally there's always that one that's permanently stuck in UEFI; normally InsydeH20 branded machines.
My objective, since I don't have a lot of time to use searching for the answer manually, is to create a single bootable USB flash drive with diagnostic tools for both BIOS and UEFI platforms.
I've gotten GRUB's config language down but apparently GRUB2 for UEFI is much different and there's no easy way to implement it via Windows.
Another question is if I learnt GRUB2 is it still compatible with BIOS?
As you may be able to tell I don't have the time to do this for myself, so if someone has some significant answers to save me time that would be great.
I repair 20-30 computers a week and every single one absolutely, hands-down needs there memory and hard drive tested.
Having UEFI machines come in throws a spanner in the works so I need to get my protocol up to date with a UEFI bootloader.
I'd like just a single Flash drive so if booting to legacy BIOS is impossible with UEFI bootloaders I'm happy with having 2 drives.\
Thanks in advance.