Questions about [U]EFI boot

[Lev Serebryakov]

 I have two questions about [U]EFI FreeBSD boot process. I've read man
pages and UEFI wiki page, but can not find answers for these two questions

(1)  Simplest "boot0" / "boot0sio" support very basic partition (slice)
selection but looks like boot1.efi doesn't support this simple feature.
Am I right? Did I messed something?

(2) How boot1.efi lives with serial console and BIOS/UEFI serial console
redirection? As far as I understand, loader.efi should be compatible
with "old-style" loader, but what about boot1.efi?

-- 
// Lev Serebryakov