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Date:      Sat, 18 Jan 1997 09:37:57 -0800 (PST)
From:      Doug White <dwhite@gdi.uoregon.edu>
To:        "Sean J. Schluntz" <schluntz@pinpt.com>
Cc:        Nadav Eiron <nadav@barcode.co.il>, questions@freebsd.org
Subject:   Re: Help With Partition Naming & Setup. 
Message-ID:  <Pine.BSI.3.94.970118092736.3118A-100000@localhost>
In-Reply-To: <Chameleon.853550168.List@journeyman>

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On Fri, 17 Jan 1997, Sean J. Schluntz wrote:

> I have one follow up question on this, how does the / get a label of /dev/sd0a 
> when the /usr and /var get labels of /dev/sd0s1f and /dev/sd0s1e on my single 
> dedicated SCSI disk.

This is more tradition than anything.

In the BSD disklabel there are lettered slots for partitions.
Historically, the layout is as follows:

a	root
b 	swap
c	whole disk  <not usable>
d	whole slice <not usable>
e	/var 
f	/usr

If you do 'disklabel sd0' at the end you'll see your partition table.
This is mine:

8 partitions:
#        size   offset    fstype   [fsize bsize bps/cpg]
  a:   102400        0    4.2BSD        0     0     0   # (Cyl.    0 -25*)
  b:   204800   102400      swap                        # (Cyl.   25*-76*)
  c:  2108673        0    unused        0     0         # (Cyl.    0 -522*)
  e:   102400   307200    4.2BSD        0     0     0   # (Cyl.   76*-101*)
  f:  1699073   409600    4.2BSD        0     0     0   # (Cyl.  101*-522*)


It should correspond to this layout.  On my disk, d isn't there, but it is
used.  Don't ask me why there are 8 and I see 5.  :)

Hope this answers your question.

Doug White                              | University of Oregon  
Internet:  dwhite@resnet.uoregon.edu    | Residence Networking Assistant
http://gladstone.uoregon.edu/~dwhite    | Computer Science Major




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