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Date:      Wed, 22 Oct 2008 22:44:58 +0300
From:      Andriy Gapon <avg@icyb.net.ua>
To:        Marcel Moolenaar <xcllnt@mac.com>
Cc:        Marcel Moolenaar <marcel@freebsd.org>, freebsd-geom@freebsd.org
Subject:   Re: gpart oddity
Message-ID:  <48FF82BA.3020309@icyb.net.ua>
In-Reply-To: <63F8346D-0116-4F41-BCAA-C235E9657BD8@mac.com>
References:  <48FF2607.10807@icyb.net.ua> <63F8346D-0116-4F41-BCAA-C235E9657BD8@mac.com>
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[-- Attachment #1 --]
on 22/10/2008 20:28 Marcel Moolenaar said the following:
> 
> On Oct 22, 2008, at 6:09 AM, Andriy Gapon wrote:
> 
>>
>> I have the following geom options in my kernel config:
>> GEOM_LABEL
>> GEOM_PART_BSD
>> GEOM_PART_GPT
>> GEOM_PART_MBR
>>
>> The last three are recent addition that I want to report about.
>>
>> Also, geom_mirror and geom_journal are loaded as modules and I use both
>> gmirror and gjournal, independently.
>>
>> This is a i386 7.1-PRERELEASE system, kernel is built from svn rev. 
>> 184137.
>> Here's a diff between new kernel verbose dmesg and old kernel verbose
>> dmesg (only geom specific lines, old kernel was built from sources from
>> around Sep 24):
>>
>> -GEOM: new disk ad4
>> +GEOM: ad4s1: invalid disklabel.
> 
> Your BSD disklabel is considered invalid. I've seen reports where
> the recorded number of sectors is larger than the media size.
> 
>> +GEOM: ad4s1b: invalid disklabel.
>> +GEOM: ad4s1c: invalid disklabel.
> 
> This is a problem with your configuration. You have not disabled
> GEOM_BSD (nor GEOM_MBR) by adding "nooption GEOM_BSD" (and
> "nooption GEOM_MBR"). For now it's best to keep it, because the
> old BSD slicer does not check your disklabel and accepts it.

Yes, this is exactly what happened.
I was about to reboot to a kernel built with those nooptions when I got 
your email - thanks a lot for saving me from being puzzled!

> Can you send me the output of dd for ad4s1, like:
> 
>     dd if=/dev/ad0s1 of=/tmp/dump count=16
> 
> As well as the output of sysctl kern.geom.conftxt.
> 
> That allows me see in what way your BSD disklabel is invalid.

Requested data follows (dd dump is in attachment).

0 DISK cd0 3548774400 2048 hd 0 sc 0
1 LABEL iso9660/KORABL 3548774400 2048 i 0 o 0
0 DISK ad4 320072933376 512 hd 16 sc 63
1 MBR ad4s2 19428111360 512 i 1 o 300642209280 ty 165
2 BSD ad4s2f 14059385856 512 i 5 o 5368717312 ty 7
3 LABEL ufs/xtra 14059385856 512 i 0 o 0
2 BSD ad4s2e 2147483648 512 i 4 o 3221233664 ty 1
3 JOURNAL ad4s1e.journal 271651147264 512
2 BSD ad4s2d 2147483648 512 i 3 o 1073750016 ty 1
3 JOURNAL ad4s1d.journal 26843545088 512
2 BSD ad4s2c 19428111360 512 i 2 o 0 ty 0
3 PART ad4s2cf 14059385856 512 i 6 o 5368717312 ty freebsd-ufs xs BSD xt 7
3 PART ad4s2ce 2147483648 512 i 5 o 3221233664 ty freebsd-swap xs BSD xt 1
3 PART ad4s2cd 2147483648 512 i 4 o 1073750016 ty freebsd-swap xs BSD xt 1
3 PART ad4s2ca 1073741824 512 i 1 o 8192 ty freebsd-swap xs BSD xt 1
2 BSD ad4s2a 1073741824 512 i 0 o 8192 ty 1
3 MIRROR mirror/rootfs 1073741312 512
1 MBR ad4s1 300642177024 512 i 0 o 32256 ty 165
2 BSD ad4s1e 271651147776 512 i 4 o 28991029248 ty 7
3 LABEL ufs/export 271651147776 512 i 0 o 0
3 JOURNAL ad4s1e.journal 271651147264 512
2 BSD ad4s1d 26843545600 512 i 3 o 2147483648 ty 7
3 JOURNAL ad4s1d.journal 26843545088 512
2 BSD ad4s1c 300642177024 512 i 2 o 0 ty 0
2 BSD ad4s1b 1073741824 512 i 1 o 0 ty 1
2 BSD ad4s1a 1073741824 512 i 0 o 1073741824 ty 7
3 MIRROR mirror/rootfs 1073741312 512



-- 
Andriy Gapon

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