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Date:      Wed, 27 Jan 2010 20:23:49 -0600
From:      Brooks Davis <brooks@freebsd.org>
To:        Dimitry Andric <dimitry@andric.com>
Cc:        freebsd-stable@freebsd.org, Dan Naumov <dan.naumov@gmail.com>, freebsd-questions@freebsd.org, John Baldwin <jhb@freebsd.org>
Subject:   Re: booting off GPT partitions
Message-ID:  <20100128022349.GB46919@lor.one-eyed-alien.net>
In-Reply-To: <4B60CBFA.4050601@andric.com>
References:  <cf9b1ee01001270845j772d5524tbc2cbd53e70890a7@mail.gmail.com> <201001271627.37955.jhb@freebsd.org> <4B60CBFA.4050601@andric.com>

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On Thu, Jan 28, 2010 at 12:27:54AM +0100, Dimitry Andric wrote:
> On 2010-01-27 22:27, John Baldwin wrote:
>> GPT was defined along with EFI, so many folks assume that you have to us=
e EFI
>> to boot a GPT-labelled disk.  However, FreeBSD has its own BIOS-based
>> bootstrap that can handle GPT-labelled disks.  I doubt the SuperMicro te=
ch is
>> familiar with that case.  I thought I heard that some folks had added GPT
>> support to grub as well.
>=20
> However, this won't boot disks larger than 2TiB, right?  At least not
> without BIOS support...

You won't be able to boot from a partition more than 2TiB in, but you
should still be able to boot as long as you boot from the front part of
the disk.

-- Brook

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