Re: Second Disk

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Fri, Dec 02, 2005 at 04:01:55PM -0700, John R. Shannon wrote:
> After creating several domainU's on sd0, I'm trying to create domains on 
> sd1 and encountering surprises.
> 
> sd1 is partitioned:
> 
> domain0# disklabel sd1
> # /dev/rsd1d:
> type: SCSI
> disk: mydisk
> label: fictitious
> flags:
> bytes/sector: 512
> sectors/track: 705
> tracks/cylinder: 4
> sectors/cylinder: 2820
> cylinders: 50824
> total sectors: 143374744
> rpm: 15015
> interleave: 1
> trackskew: 0
> cylinderskew: 0
> headswitch: 0           # microseconds
> track-to-track seek: 0  # microseconds
> drivedata: 0
> 
> 8 partitions:
> #        size    offset     fstype [fsize bsize cpg/sgs]
>  c: 143374681        63     unused      0     0        # (Cyl.      0*- 
>  50842*)
>  d: 143374744         0     unused      0     0        # (Cyl.      0 - 
>  50842*)
>  e:  35830920        63     4.2BSD   2048 16384 28760  # (Cyl.      0*- 

This is your problem. The disk's disklabel will be stored in the first
sectors of the c: partition.
As your e: partition starts at the same offset, you'll get the disklabel
of the whole disk when reading the first sectors.
change e: to leave some sectors for the disklabel. For example, make it
start at sector 80

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--