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Date:      Wed, 3 Oct 2001 21:09:21 -0400
From:      Randy Pratt <rpratt@ezwv.com>
To:        James Zuelow <jfzuelow@alaska.net>, <freebsd-newbies@FreeBSD.ORG>
Subject:   Re: long device names
Message-ID:  <200110040109.VAA07194@mail.ezwv.com>
In-Reply-To: <Pine.LNX.4.33.0110031600220.655-100000@Hobbes.sodorline.home>
References:  <Pine.LNX.4.33.0110031600220.655-100000@Hobbes.sodorline.home>

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On Wednesday 03 October 2001 08:12 pm, James Zuelow wrote:
> I have a heterogenous home network - Windows/RedHat/Debian/OpenBSD and now
> FreeBSD, 4.4 installed yesterday.  (Note that I've only been running *nix
> for about a year, so I am definately not an expert.)
>
> While I wait for Annelise's book to arrive, I've been poking around the
> FreeBSD box and immediately got hit with the long device names.  The Linux
> device names are all short - for example sdb4 - and make sense to me.
> OpenBSD rearrages things - for example sd1d - but it still makes sense.
>
> What in the world is an ad0s1a?  I get the ad0 part (first IDE drive), but
> why s1a instead of just a-z?
>
> I'm not asking about how to read df -h or mount partitions, but rather the
> why the partitions are named like this.  Man device didn't help much.  It
> sure does make mounting a cd that much slower (two extra characters to type
>  - gotta be a quarter second at least!)

Check out the Handbook section on Allocating Disk Space:

http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/install-steps.html

There is some information there about the disk layout and naming that might 
help some.

HTH,

Randy

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