Subject: Re: Is it really the disk drive or something else?
To: None <port-sparc@netbsd.org>
From: Paul F. Wells <paul@wellserv.com>
List: port-sparc
Date: 09/21/1998 23:38:22
Paul Mauriks <pmauriks@ue.com.au> writes:
> I remember seeing something about this a while ago - I think it had to
> do with the geometry of the disk for the installation (when putting on a
> disklabel) - I think it was something like that the geometry that was
> detected was used - but if the information was altered in disklabel
> incorrectly the machine would not boot afterwards and would require a
> re-install.
>
The only catch as I recall it, is that the partitions must be on cylinder
boundaries:
root@spunky# disklabel sd0
# /dev/rsd0c:
type: SCSI
disk: spunkydisk
label:
flags:
bytes/sector: 512
sectors/track: 35
tracks/cylinder: 29
sectors/cylinder: 1015
cylinders: 4133
total sectors: 4194995
rpm: 7200
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0 # milliseconds
track-to-track seek: 0 # milliseconds
drivedata: 0
5 partitions:
# size offset fstype [fsize bsize cpg]
a: 131950 0 4.2BSD 1024 8192 16 # (Cyl. 0 - 129)
b: 196910 131950 swap # (Cyl. 130 - 323)
c: 4194995 0 unused 0 0 # (Cyl. 0 - 4132)
d: 196910 328860 4.2BSD 1024 8192 16 # (Cyl. 324 - 517)
e: 3669225 525770 4.2BSD 1024 8192 16 # (Cyl. 518 - 4132)
root@spunky#
I've labeled it with both OpenBSD and NetBSD with the same result.
> I am using a DEC 5000/133 with OpenBSD so I don't know how this might
> relate to a Sparc machine or even if this is relevant to NetBSD - anyway
> you might try the mailing list archives at www.openbsd.org for some more
> info.
>
Thanks much,
Paul
--
Paul F. Wells <paul@wellserv.com>