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Date:      Fri, 17 Jun 2011 21:18:28 -0500
From:      Zhihao Yuan <lichray@gmail.com>
To:        John Baldwin <jhb@freebsd.org>
Cc:        Henri Hennebert <hlh@restart.be>, freebsd-stable@freebsd.org
Subject:   Re: ZFS boot inside on the second partition inside a slice
Message-ID:  <BANLkTi=ddTFO8p0K5UOD7fYtqSjNE-VSEA@mail.gmail.com>
In-Reply-To: <201106171337.39104.jhb@freebsd.org>
References:  <BANLkTi=drd8vY84_4jqDZTFK%2Bsq=n0Kx9g@mail.gmail.com> <201106161335.46337.jhb@freebsd.org> <4DFB898E.4070202@restart.be> <201106171337.39104.jhb@freebsd.org>

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If this problem can not be solved, I probably have to redo everything
to use GPT-based solution and lose my Windows.............

On Fri, Jun 17, 2011 at 12:37 PM, John Baldwin <jhb@freebsd.org> wrote:
> On Friday, June 17, 2011 1:06:22 pm Henri Hennebert wrote:
>> On 06/16/2011 19:35, John Baldwin wrote:
>> > On Thursday, June 16, 2011 8:45:41 am Zhihao Yuan wrote:
>> >> Exactly. The MFCed ZFSv28 is different from any patch maintained by
>> >> mm@. Maybe some untested changes involved.
>> >
>> > Can you try reverting this change:
>> >
>> > Author: jhb
>> > Date: Thu Apr 28 17:44:24 2011
>> > New Revision: 221177
>> > URL: http://svn.freebsd.org/changeset/base/221177
>> >
>> > Log:
>> > =C2=A0 Due to space constraints, the UFS boot2 and boot1 use an evil h=
ack where
>> > =C2=A0 boot2 calls back into boot1 to perform disk reads. =C2=A0The ZF=
S MBR boot blocks
>> > =C2=A0 do not have the same space constraints, so remove this hack for=
 ZFS.
>> > =C2=A0 While here, remove commented out code to support C/H/S addressi=
ng from
>> > =C2=A0 zfsldr. =C2=A0The ZFS and GPT bootstraps always just use EDD LB=
A addressing.
>> >
>> > =C2=A0 MFC after: =C2=A0 =C2=A02 weeks
>> >
>> > Modified:
>> > =C2=A0 head/sys/boot/i386/boot2/Makefile
>> > =C2=A0 head/sys/boot/i386/common/drv.c
>> > =C2=A0 head/sys/boot/i386/zfsboot/Makefile
>> > =C2=A0 head/sys/boot/i386/zfsboot/zfsldr.S
>> >
>> I try with this revision (221177) reverted to no avail:
>> same error - 'read error'
>
> Hmm, ok. =C2=A0No other ideas off the top of my head.
>
> --
> John Baldwin
>



--=20
Zhihao Yuan, nickname lichray
The best way to predict the future is to invent it.
___________________________________________________
4BSD -- http://4bsd.biz/



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