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Date:      Wed, 15 Oct 1997 22:16:19 +0200
From:      j@uriah.heep.sax.de (J Wunsch)
To:        jacques@wired.ctech.ac.za (Jacques Hugo)
Cc:        questions@FreeBSD.org
Subject:   Re: damn, damn, damn ... getting confused here.
Message-ID:  <19971015221619.RU37129@uriah.heep.sax.de>
In-Reply-To: <344476E5.31DFF4F5@wired.ctech.ac.za>; from Jacques Hugo on Oct 15, 1997 09:55:17 %2B0200
References:  <344476E5.31DFF4F5@wired.ctech.ac.za>

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As Jacques Hugo wrote:

> Hi there ... hope you can help.
> 
> What is the difference between a device like
> 	/dev/vn0 and /dev/vn0c ??
> 
> What does the 'c' mean?

It's partition `c' (which is a magical alias for the entire
disk/slice).

/dev/vn0 is the buffered device denoting the entire vn0.  If vn0 is
not sliced, /dev/vn0c would be an alias for it.  If vn0 is sliced
(i.e., has an fdisk table), /dev/vn0c would be an alias for the first
BSD slice found on it, while /dev/vn0 would still be the entire vn0
device.

Don't forget that all these are buffered devices.  Except for
mounting, you probably do want to use raw devices (/dev/rvn0).

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)



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