> I've never seen a motherboard supporting anything else than FAT for an UEFI partition.
I've seen exactly one model line, that does support NTFS in UEFI: Intel NUCs. It was quite nice, but nobody preparing boot media can rely on the availability, as the only mandatory filesystem is FAT32.
I've seen exactly one model line, that does support NTFS in UEFI: Intel NUCs. It was quite nice, but nobody preparing boot media can rely on the availability, as the only mandatory filesystem is FAT32.