Date: Tue, 21 Oct 2008 10:36:14 +0200 From: Ulf Lilleengen <lulf@stud.ntnu.no> To: andys <a.smith@ukgrid.net> Cc: freebsd-fs@freebsd.org Subject: Re: bsdlabel partiton c error message on new install Message-ID: <20081021083415.GA1571@carrot.studby.ntnu.no> In-Reply-To: <E1Kqr3m-000Pp9-I0@alpha.ukgrid.net> References: <E1Kqr3m-000Pp9-I0@alpha.ukgrid.net>
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On fre, okt 17, 2008 at 04:16:14pm +0100, andys wrote:
> Hi,
>
> on a newly installed FreeBSD 7.0 system on a dell 1950 server I see the
> following error from bsdlabel. Is there any known issues with this or is the
> only reasonable explanation that I have managed to mess it up without even
> knowing? :P And should I manually change the partition c to fix the prob? Is
> this safe to do?
>
> bsdlabel -A /dev/da0s1
> # /dev/da0s1:
> type: SCSI
> disk: da0s1
> label:
> flags:
> bytes/sector: 512
> sectors/track: 63
> tracks/cylinder: 255
> sectors/cylinder: 16065
> cylinders: 17750
> sectors/unit: 285155328
> rpm: 3600
> interleave: 1
> trackskew: 0
> cylinderskew: 0
> headswitch: 0 # milliseconds
> track-to-track seek: 0 # milliseconds
> drivedata: 0
>
> 8 partitions:
> # size offset fstype [fsize bsize bps/cpg]
> a: 20971520 0 4.2BSD 2048 16384 28552
> b: 20971520 75497472 swap
> c: 285153687 0 unused 0 0 # "raw" part, don't
285155328
> edit
> d: 20971520 20971520 4.2BSD 2048 16384 28552
> e: 20971520 41943040 4.2BSD 2048 16384 28552
> f: 12582912 62914560 4.2BSD 2048 16384 28552
> bsdlabel: partition c doesn't cover the whole unit!
> bsdlabel: An incorrect partition c may cause problems for standard system
> utilities
>
>
> thanks for any advice, Im not really confident with the FreeBSD disk
> management as I havent used it much,
Hello,
This is completely ok. The reasons that you might get warnings like this is
that fdisk tries to put the sector number on a cylinder boundary. If that
means that the partition is larger than the actual disklabel size, that is
ok. What would have been a problem is if the disklabel extends past the
partition size! (I think the installer makes sure this does not happen).
You do waste a few sectors because of this, but unless you are really
interested in getting them back, I would not start bothering with it. One way
to "fix" it is to do a bsdlabel -e and change
c: 285153687 0 unused 0 0
to
c: 285155328 0 unused 0 0
But again, it is not many sectors that is currently wasted.
--
Ulf Lilleengen
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