Date: Thu, 21 Nov 2002 15:32:02 +0200 From: Vallo Kallaste <kalts@estpak.ee> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: current@freebsd.org Subject: Re: cvs commit: src/sys/geom geom_slice.c Message-ID: <20021121133202.GA2151@tiiu.internal> In-Reply-To: <6719.1037823541@critter.freebsd.dk> References: <200211202012.gAKKCqRm098590@repoman.freebsd.org> <6719.1037823541@critter.freebsd.dk>
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On Wed, Nov 20, 2002 at 09:19:01PM +0100, Poul-Henning Kamp
<phk@critter.freebsd.dk> wrote:
> This should fix a large part of the disklabel -e bogosity people
> have been seeing.
>
> In message <200211202012.gAKKCqRm098590@repoman.freebsd.org>, Poul-Henning Kamp
> writes:
> >phk 2002/11/20 12:12:52 PST
> >
> > Modified files:
> > sys/geom geom_slice.c
> > Log:
> > Remember to update the providers idea of its size when we reconfigure
> > a slice child.
> >
> > Approved by: re
> >
> > Revision Changes Path
> > 1.27 +1 -0 src/sys/geom/geom_slice.c
root:vallo# ident /usr/src/sys/geom/geom_slice.c
/usr/src/sys/geom/geom_slice.c:
$FreeBSD: src/sys/geom/geom_slice.c,v 1.27 2002/11/20 20:12:52 phk Exp $
root:vallo# fdisk ad0
******* Working on device /dev/ad0 *******
parameters extracted from in-core disklabel are:
cylinders=39703 heads=16 sectors/track=63 (1008 blks/cyl)
Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=39703 heads=16 sectors/track=63 (1008 blks/cyl)
Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
start 63, size 16382961 (7999 Meg), flag 80 (active)
beg: cyl 0/ head 1/ sector 1;
end: cyl 1023/ head 15/ sector 63
The data for partition 2 is:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
start 16383024, size 16383024 (7999 Meg), flag 0
beg: cyl 1023/ head 255/ sector 63;
end: cyl 1023/ head 15/ sector 63
The data for partition 3 is:
<UNUSED>
The data for partition 4 is:
<UNUSED>
root:vallo# disklabel ad0s1
# /dev/ad0s1c:
type: ESDI
disk: ad0s1
label:
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 16
sectors/cylinder: 1008
cylinders: 39703
sectors/unit: 40020624
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: 524288 0 4.2BSD 2048 16384 32776 # (Cyl. 0 - 520*)
b: 524288 524288 unused 0 0 # (Cyl. 520*- 1040*)
c: 16382961 0 unused 0 0 # (Cyl. 0 - 16252*)
d: 15334385 1048576 4.2BSD 2048 16384 28552 # (Cyl. 1040*- 16252*)
Warning, partition c doesn't cover the whole unit!
Warning, An incorrect partition c may cause problems for standard system utilities
root:vallo# disklabel -r ad0s1
# /dev/ad0s1c:
type: ESDI
disk: ad0s1
label:
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 16
sectors/cylinder: 1008
cylinders: 39703
sectors/unit: 40020624
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: 524288 63 4.2BSD 2048 16384 32776 # (Cyl. 0*- 520*)
b: 524288 524351 unused 0 0 # (Cyl. 520*- 1040*)
c: 16382961 63 unused 0 0 # (Cyl. 0*- 16252*)
d: 15334385 1048639 4.2BSD 2048 16384 28552 # (Cyl. 1040*- 16252*)
Warning, partition c doesn't start at 0!
Warning, partition c doesn't cover the whole unit!
Warning, An incorrect partition c may cause problems for standard system utilities
root:vallo#
--
Vallo Kallaste
kalts@estpak.ee
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