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Date:      Sun, 12 Jul 2015 18:10:23 +0300
From:      "Andrey V. Elsukov" <bu7cher@yandex.ru>
To:        Allan Jude <allanjude@freebsd.org>, freebsd-current@freebsd.org
Subject:   Re: Lenovo BIOS boot fix
Message-ID:  <55A2835F.1030004@yandex.ru>
In-Reply-To: <55A2030B.7010405@freebsd.org>
References:  <55A1FFD5.7080008@freebsd.org> <55A2030B.7010405@freebsd.org>

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On 12.07.2015 09:02, Allan Jude wrote:
> I forgot to include the link to the patch as well:
>=20
> http://www.allanjude.com/bsd/lenovofix_gpart.patch
>=20
> I will most likely make this patch optional, behind a flag to the 'gpar=
t
> create -s gpt' command, to avoid potentially breaking existing working
> systems, but if using offset 1 works on all other hardware, having it a=
s
> the default would be nice.
>=20
> Another option would be to make a separate standalone program to modify=

> the pMBR for Lenovo machines, rather than modifying gpart.

Hi,

I think Lenovo's BIOS just think that your partition layout is MBR and
uses legacy boot.

if (MBR_partition[0].type =3D=3D 0xee && gpt_is_ok()) {
   UEFI_boot();
} else {
   MBR_boot();
}

--=20
WBR, Andrey V. Elsukov


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