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Date: Thu, 5 Feb 1998 04:09:04 +1100
From: Bruce Evans <bde@zeta.org.au>
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To: asami@cs.berkeley.edu, cdillon@inter-linc.net
Subject: Re: May have pounced on something weird with ccd and newfs  (rat
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> * 3 partitions:
> * #        size   offset    fstype   [fsize bsize bps/cpg]
> *   a:  1023936        0    4.2BSD     1024  8192     0   # (Cyl.    0 - 499*)
> *   b:  1023936  1023936    4.2BSD     1024  8192     0   # (Cyl.  499*- 999*)
> *   c:  2047872        0    unused        0     0         # (Cyl.    0 - 999*)
>
>So you do have a disklabel.  (The ccd driver will return a "default"
>label with only partition "c" and type "4.2BSD" if you don't write one
>yourself...that is often good enough, there usually is no point in
>sub-partitioning the ccd if you're combining disks is the first
>place. :)

Except some things are different for the "c" partition.  The label
on it is easier to clobber, and some drivers, notably the ccd driver,
don't check for EOF on it, so things only work right if the lower
layers handle EOF correctly and consistently.

Bruce