*BSD News Article 82298


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From: jgreco@ns.sol.net (Joe Greco)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: CCD-config and disklabel Quetion
Date: 4 Nov 1996 15:06:54 -0600
Organization: sol.net Network Services - Milwaukee, WI
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References: <550hdv$9ir@amd40.wecs.org> <327DFFC4.31DFF4F5@FreeBSD.org>
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In article <327DFFC4.31DFF4F5@FreeBSD.org>,
Jordan K. Hubbard <jkh@FreeBSD.org> wrote:
>Duane Eddingfield wrote:
>> Remaining cylinders of sd0 are in a second slice:
>> 
>> # /dev/rsd0s2c:
>               ^c?
>
>> # ccd   ileave  flags   component devices.
>> ccd0    32      none    /dev/sd0s2e /dev/sd1s1e /dev/sd2s1e /dev/sd3s1e
>
>Isn't that:
>ccd0	32	none	/dev/sd0s2 /dev/sd1s1 /dev/sd1s1 /deb/sd2s1
>
>?
>
>I've never tried this, not having enough disks to really test ccd, but
>it seems to make more sense.
>
>> 3 partitions:
>> #        size   offset    fstype   [fsize bsize bps/cpg]
>>   c: 24037152        0    unused        0     0         # (Cyl.    0 -
>
>Just one, that's perfect.  Since this thing is a virtual partition,
>you're using the whole whack with /dev/ccd0c - you don't want to make an
>e partition. :-)

Actually you do;  CCD wants a "fstype" of 4.2BSD (which I think is mildly
bogus).  It should probably have its own 'fstype'  (or, actually, partition
type).

I do not particularly trust the disklabel protection code in CCD.  I start
my CCD devices on Cylinder 1, and end on a cylinder boundary as well.
That's unrelated, but some people have had problems..

... JG