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Date:      Thu, 2 Jul 1998 22:48:19 -0700 (PDT)
From:      Thomas Dean <tomdean@ix.netcom.com>
To:        zadonick@ucsub.Colorado.EDU
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: INSTALL
Message-ID:  <199807030548.WAA01418@ix.netcom.com>
In-Reply-To: <Pine.GSO.3.96.980702161208.6806A-100000@ucsub.Colorado.EDU> (message from 187AHGaaZadonick on Thu, 2 Jul 1998 16:14:54 -0600 (MDT))

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Do you really want 6 partitions?  If so, what are these partitions?
What are you trying to do with the disk?

Look at http://www.freebsd.org/handbook/handbook100.html for a
clarification of terms and more information.

Don't you want the parts of the disk to be named /dev/wd0s1a through
/dev/wd0s1f?

A PC or DOS disk has a master partition table with room for 4
partitions.  To prevent confusion these are called slices in the
FreeBSD world.  So, there may be only 4 entries in the master
partition table.  But, each of these master partition table entries,
or slices, may be sub-divided for use by a specific operating system.

On my computer, sd1 has 1 DOS partition, or in FreeBSD terms, 1 slice,
shown with fdisk.  But, there are 5 FreeBSD partitions within this
slice, shown with disk label.  One of these partitions, c, is the
entire disk, overlapping the other partitions.

# fdisk sd1
******* Working on device /dev/rsd1 *******
parameters extracted from in-core disklabel are:
cylinders=393 heads=255 sectors/track=63 (16065 blks/cyl)

parameters to be used for BIOS calculations are:
cylinders=393 heads=255 sectors/track=63 (16065 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,(FreeBSD/NetBSD/386BSD)
    start 63, size 6313482 (3082 Meg), flag 80 (active)
        beg: cyl 0/ sector 1/ head 1;
        end: cyl 392/ sector 63/ head 254
The data for partition 2 is:
<UNUSED>
The data for partition 3 is:
<UNUSED>
The data for partition 4 is:
<UNUSED>

# disklabel -r sd1
# /dev/rsd1c:
type: SCSI
disk: sd1s1
label: 
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 255
sectors/cylinder: 16065
cylinders: 392
sectors/unit: 6313482
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:    80325        0    4.2BSD        0     0     0   # (Cyl.    0 - 4)
  b:   465885    80325      swap                        # (Cyl.    5 - 33)
  c:  6313482        0    unused        0     0         # (Cyl.    0 - 392*)
  e:   224910   546210    4.2BSD        0     0     0   # (Cyl.   34 - 47)
  f:  5526360   771120    4.2BSD        0     0     0   # (Cyl.   48 - 391)

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