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Date: Sun, 16 Oct 2011 20:15:54 +0400
From: "Andrey V. Elsukov" <ae@FreeBSD.org>
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Cc: Nicolas Rachinsky <fbsd-mas-0@ml.turing-complete.org>,
	freebsd-geom@freebsd.org
Subject: Re: gmirror failed with error 19.
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On 16.10.2011 15:51, Lev Serebryakov wrote:
> Hello, Nicolas.
> You wrote 16 =CF=CB=D4=D1=C2=D2=D1 2011 =C7., 15:05:26:
>=20
>> Of course you have to create the gpt inside the gmirror, not on the
>> same device the gmirror is based on. The warnings occur, when the gpt
>> is seen on the real disk. But later the gpt on the gmirror is used,
>> and on the device created by gmirror, gpt uses the last sector of that=

>> device.
>> I hope this will not change.

Yes, it works as you have described.

>   Problem is, that new BIOSes could refuse to boot from disk with such
>  misplaced (from raw disk's and BIOS' point of view) secondary GPT.

Can you give an example which motherboard does not work?

Our boot process uses PMBR and we are not expecting that BIOS has known
anything about GPT. So it should work. If BIOS has known about GPT then
it is EFI firmware.

--=20
WBR, Andrey V. Elsukov


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