On 12/16/2016 11:39, Slawa Olhovchenkov wrote:> On Fri, Dec 16, 2016 at 06:08:34PM +0100, Fernando Herrero Carr?n wrote:
>
>> Hi everyone,
>>
>> A few months ago I got myself a new box and I have been happily running
>> FreeBSD on it ever since. I noticed that the boot was not as fast as I
had
>> expected and I've realized that, while my disk is GPT partitioned,
the boot
>> process is still BIOS based:
>>
>> % gpart show
>> => 34 976773101 ada0 GPT (466G)
>> 34 6 - free - (3.0K)
>> 40 1024 1 freebsd-boot (512K)
>> 1064 984 - free - (492K)
>> 2048 67108864 2 freebsd-swap (32G)
>> 67110912 909662208 3 freebsd-zfs (434G)
>> 976773120 15 - free - (7.5K)
>>
>> 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.
>>
>> Thanks in advance for your help.
>
> I am also interesting by this case.
> I think expand freebsd-boot to about 1M (size of /boot/boot1.efifat),
> dding /boot/boot1.efifat and set to type to 'efi' may be enough. I
am
> never tried this.
I expect that would work. It's slightly risky, though, since it doesn't
let you
fall back to BIOS boot if EFI doesn't work.
Eric