ZFS feature compatibility?

[John Kennedy]

> Thanks, I am new to the EFI world.  Does the name now have to be
> BOOTx64.efi ?
> 
> root at zoo2:/boot # ls -l /mnt/EFI/freebsd/
> total 824
> -rwxr-xr-x  1 root  wheel  843776 Nov 21 10:50 loader.efi
> root at zoo2:/boot #

  I don't know.  This came out of an email thread I had a while ago:

	Date: Thu, 9 Jul 2020 14:18:54 -0700
	From: John Kennedy <warlock at phouka.net>
	To: Kyle Evans <kevans at freebsd.org>
	Cc: FreeBSD-STABLE Mailing List <freebsd-stable at freebsd.org>
	Subject: Re: 12.1p7 no longer boots after doing zpool upgrade -a

  The "new" documentation was here:

	https://wiki.freebsd.org/UEFI

  The older stuff is still mentioned here:

	https://wiki.freebsd.org/RootOnZFS/GPTZFSBoot