On Fri, 16 Dec 2016, Eric van Gyzen wrote:
On 12/16/2016 11:39, Slawa Olhovchenkov wrote:
On Fri, Dec 16, 2016 at 06:08:34PM +0100, Fernando Herrero Carrón 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.
The fallback in that case would just be changing that partition back to
freebsd-boot and rewriting the bootcode to it.
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