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Date:      Thu, 29 Jul 2010 11:46:52 +0400
From:      "Andrey V. Elsukov" <bu7cher@yandex.ru>
To:        Joan Picanyol i Puig <lists-freebsd@biaix.org>
Cc:        freebsd-geom@freebsd.org
Subject:   Re: unlikely secondary GPT LBA
Message-ID:  <4C5131EC.6090208@yandex.ru>
In-Reply-To: <loom.20100729T021550-36@post.gmane.org>
References:  <20100727171922.GC4458@grummit.biaix.org>	<4C4F289A.8070202@yandex.ru> <loom.20100729T021550-36@post.gmane.org>

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On 29.07.2010 4:24, Joan Picanyol i Puig wrote:
>>> # add boot partition, aligning it's end to 1MB boundary
>>> gpart add -b 64 -s 1984 -t freebsd-boot -l boot /dev/mirror/system
>>
>> Do your system successfully boots from this partition?
>=20
> Well, I'm currently unable to answer this question. Both drives are beh=
ind the=20
> same twa controller (3Ware 9650) and I've been unable to change the boo=
t disc=20
> from the BIOS (over serial). Not surprisingly, the currently installed =
by=20
> default boot0 does not know how to pass control to a loader in a GPT pa=
rtition.

I think it will not boot. freebsd-boot partition should be smaller than 5=
45kb.

> So, what explains the messages? gpart probes the disk before gmirror (o=
r at=20

Perhaps you are right. You can enable G_T_TOPOLOGY debug printfs via
kern.geom.debugflags=3D1. This can help to see what happens.

Also, can you show `gpart list` and `gpart show` output?


--=20
WBR, Andrey V. Elsukov


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