Upgrading boot from GPT(BIOS) to GPT(UEFI)

[Warner Losh]

On Sun, Dec 18, 2016 at 11:34 PM, Eugene M. Zheganin <emz at norma.perm.ru> wrote:
> Hi.
>
> On 16.12.2016 22:08, Fernando Herrero Carrón wrote:
>> I am reading uefi(8) and it looks like FreeBSD 11 should be able to boot
>> using UEFI straight into ZFS, so I am thinking of converting that
>> freebsd-boot partition to an EFI partition, creating a FAT filesystem and
>> copying /boot/boot.efi there.
>>
>> How good of an idea is that? Would it really be that simple or am I missing
>> something? My only reason for wanting to boot with UEFI is faster boot,
>> everything is working fine otherwise.
>>
> I tried the UEFI boot sequence on a Supermicro server. It boots only
> manually, gives some cryptic error while booting automatically. When
> entering the path to the EFI loader in a appearing prompt - it boots
> fine, but this kills the idea.
>
> I've written a message here about this, so far nobody answered (August,
> 14th, "FreeBSD doesn't boot automatically from UEFI").
>
> Now it runs on gptzfsboot again, so ....

Which SuperMicro board? Our X9's have big issues with UEFI (though
some versions of the boards seem to work). The X10's are rock solid.

Warner