Date: Wed, 30 Apr 2003 19:01:47 +0200 From: "Simon L. Nielsen" <simon@nitro.dk> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: freebsd-current@freebsd.org Subject: Re: Disklabel bug? Message-ID: <20030430170146.GE400@nitro.dk> In-Reply-To: <11540.1051716964@critter.freebsd.dk> References: <20030430104448.GD400@nitro.dk> <11540.1051716964@critter.freebsd.dk>
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On 2003.04.30 17:36:04 +0200, Poul-Henning Kamp wrote:
> In message <20030430104448.GD400@nitro.dk>, "Simon L. Nielsen" writes:
>=20
> >I have a disk with two slices since I need more partions than on slice
> >can hold. I have one 20GB and one ~200GB but when I edit the disklabels
> >for the two slices it looks like disklabel(8) get the total size of the
> >slize wrong (sectors/unit). It uses the size of the entire disk instead
> >of the slice causing disklabel to complain about the c partion being
> >wrong size.
>=20
> Hmm, I just tried this on my test box, and it came out right, so I=20
> wonder if you can remember the exact steps which brought you in
> this situation ?
I can reproduce it :
* Clear start of disk with dd
[root@ford:simon] dd if=3D/dev/zero of=3D/dev/da0 count=3D1k
1024+0 records in
1024+0 records out
524288 bytes transferred in 0.543731 secs (964242 bytes/sec)
* Add two slices with sysinstall (20GB+~203GB) to da0
* Write slices out choosing FreeBSD boot manager
* Run disklabel :
[root@ford] disklabel -e da0s1
In my editor :
# /dev/da0s1c:
type: SCSI =20
disk: da0s1
label: =20
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 255
sectors/cylinder: 16065
cylinders: 29187 =20
sectors/unit: 468903936
rpm: 3600 =20
interleave: 1
trackskew: 0=20
cylinderskew: 0
headswitch: 0 # milliseconds
track-to-track seek: 0 # milliseconds
drivedata: 0 =20
=20
8 partitions:
# size offset fstype [fsize bsize bps/cpg]
c: 41929587 0 unused 0 0 # (Cyl. 0 - 2609=
*)
After quitting it shows :
Warning, partition c doesn't cover the whole unit!
Warning, An incorrect partition c may cause problems for standard system ut=
ilities
GEOM shows the following on the console :
GEOM: Configure da0s1, start 32256 length 21467948544 end 21467980799
GEOM: Configure da0s2, start 21467980800 length 218603266560 end 2400712473=
59
GEOM: Configure da0s1c, start 0 length 21467948544 end 21467948543
GEOM: Configure da0s2c, start 0 length 218603266560 end 218603266559
GEOM: Reconfigure da0s1c, start 0 length 21467948544 end 21467948543
It's on a Adaptec ATA RAID 2400A (emulates SCSI for the IDE disks) :
asr0: <Adaptec Caching SCSI RAID> mem 0xe6000000-0xe7ffffff irq 5 at device=
14.0 on pci0
asr0: major=3D154
asr0: ADAPTEC 2400A FW Rev. 3A0L, 4 channel, 256 CCBs, Protocol I2O
da0 at asr0 bus 0 target 0 lun 0
da0: <ADAPTEC RAID-5 3A0L> Fixed Direct Access SCSI-2 device=20
da0: Tagged Queueing Enabled
da0: 228957MB (468903936 512 byte sectors: 255H 63S/T 29187C)
Btw. I just checked the disklabel from 4.8 :
ford# disklabel -e da0s1
# /dev/da0s1c:
type: SCSI
disk: da0s1
label:=20
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 255
sectors/cylinder: 16065
cylinders: 2609
sectors/unit: 41929587
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0 # milliseconds
track-to-track seek: 0 # milliseconds
drivedata: 0=20
8 partitions:
# size offset fstype [fsize bsize bps/cpg]
c: 41929587 0 unused 0 0 # (Cyl. 0 - 2609=
*)
So there is no problem there under 4.8.
--=20
Simon L. Nielsen
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