WARNING: Expected rawoffset 0, found 63 ?
Poul-Henning Kamp
phk at phk.freebsd.dk
Fri Sep 24 14:50:27 PDT 2004
In message <1096056348.9306.87.camel at zappa.Chelsea-Ct.Org>, Paul Mather writes:
>On Fri, 2004-09-24 at 15:19, Chris Elsworth wrote:
>
>> app1# bsdlabel -r /dev/mirror/gm
>> # /dev/mirror/gm:
>> 8 partitions:
>> # size offset fstype [fsize bsize bps/cpg]
>> a: 71119675 16 unused 0 0
>> c: 71119691 0 unused 0 0 # "raw" part, don't edit
>>
>>
>> So now another two things crop up - where has that a partition come from
>> (perhaps that's just what bsdlabel -w does by default, no big deal)
>> but more importantly, why do they both have an offset of 16 bytes..
>> It didn't seem to mind me changing it to zero, though. So now I'll see
>> if I can get it booting :)
>
>I believe the above is bsdlabel's idea of an "auto" label. I don't know
>why the 16 sector offset for the "a" partition, because you don't get
>that when you label a slice via sysinstall and choose the "auto
>defaults." (Maybe there's a case for making bsdlabel's "auto" label
>behave the same as sysinstall.)
The 16 offset is to protect the disklabel and boot code. You have no
idea how much I hate the person who made the hack to leave the metadata
inside the trafic partitions.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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