Date: Mon, 05 May 2003 11:09:55 -0300 From: "Daniel C. Sobral" <dcs@tcoip.com.br> To: walt <wa1ter@myrealbox.com> Cc: freebsd-current@freebsd.org Subject: Re: bsdlabel question Message-ID: <3EB670B3.6030005@tcoip.com.br> In-Reply-To: <3EB67397.1010109@myrealbox.com> References: <b94skr$2mrk$1@FreeBSD.csie.NCTU.edu.tw> <3EB67397.1010109@myrealbox.com>
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walt wrote:
> Poul-Henning Kamp wrote:
>
>> In message <3EB5FC94.7070901@myrealbox.com>, walt writes:
>>
>>> Poul-Henning Kamp wrote:
>>>
>>>> In message <31649.1052067538@critter.freebsd.dk>, "Poul-Henning
>>>> Kamp" writes:
>>>>
>>>>
>>>>> In message <3EB50F10.3010001@myrealbox.com>, walt writes:
>>>>>
>>>>>
>>>>>> Hi Poul-Henning,
>>>>>>
>>>>>> #bsdlabel ad0s3
>>>>>> # /dev/ad0s3:
>>>>>> 8 partitions:
>>>>>> # size offset fstype [fsize bsize bps/cpg]
>>>>>> a: 15321596 140974726 4.2BSD 0 0 0
>>>>>> b: 1048576 139926150 swap
>>>>>> c: 16370235 139926150 unused 0 0 # "raw"
>>>>>> part, don't edit
>>>>>
>>>>>
>>>>> Ahh, good point, forgot about that. Will fix.
>>>>
>>>>
>>>>
>>>> OK, fixed now.
>>>
>>>
>>> I find that I now have the same problem that Martin had --
>>> 'cannot mount root:5'
>
>
>> If you cannot mount root, you may want to comment out this
>> check in sys/geom/geom_bsd.c:
>>
>> if ((off_t)rawoffset * secsize != ms->mbroffset)
>> rawoffset = 0;
>
>
> Okay, root mounts again, thanks. I'm still seeing all the same
> warnings with bsdlabel, though:
>
> #bsdlabel ad1s3
> # /dev/ad1s3:
> 8 partitions:
> # size offset fstype [fsize bsize bps/cpg]
> a: 15321596 140974726 4.2BSD 0 0 0
> b: 1048576 139926150 swap
> c: 16370235 139926150 unused 0 0 # "raw" part,
> don't edit
> partition a: offset past end of unit
> partition a: partition extends past end of unit
> partition b: offset past end of unit
> partition b: partition extends past end of unit
> partition c: offset past end of unit
> partition c: partition extends past end of unit
> bsdlabel: partition c doesn't start at 0!
> bsdlabel: An incorrect partition c may cause problems for standard
> system utilities
Disklabel offsets are 0-based. It doesn't matter where the _slice_
starts, the partition offset always has the beginning of the slice as
reference.
In that light, the above sure looks... wrong.
--
Daniel C. Sobral (8-DCS)
Gerencia de Operacoes
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E-mail: Daniel.Capo@tco.net.br
Daniel.Sobral@tcoip.com.br
dcs@tcoip.com.br
Outros:
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dcs@freebsd.org
capo@notorious.bsdconspiracy.net
Hacking's just another word for nothing left to kludge.
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