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Date:      Sun, 9 Dec 2001 19:50:13 +0100
From:      Joerg Wunsch <j@uriah.heep.sax.de>
To:        freebsd-current@FreeBSD.ORG
Subject:   Re: cvs commit: src/sys/kern subr_diskmbr.c
Message-ID:  <20011209195013.J97235@uriah.heep.sax.de>
In-Reply-To: <XFMail.20011209225258.doconnor@gsoft.com.au>; from doconnor@gsoft.com.au on Sun, Dec 09, 2001 at 10:52:58PM %2B1030
References:  <44735.1007899299@verdi.nethelp.no> <XFMail.20011209225258.doconnor@gsoft.com.au>

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As Daniel O'Connor wrote:

> I don't understand the need some people have for using something
> that is labelled as DANGEROUS.

Historically, it hasn't been labelled that, it only later became
common terminology for it -- in the typical half-joking manner.

> No, it won't hurt your cats but you may lose hair from using it, and
> for what benefit? NONE!

See my other reply about fdisk tables: they are a misdesign from the
beginning.

The single most wanted feature it buys you is the ability to
completely forget the term `geometry' with your disks: the very first
sectors of a disk always have the same BIOS int 0x13 representation,
regardless of what your BIOS/controller thinks the `geometry' might
be.  Thus, those disks are basically portable between controller
BIOSes.  (Modulo those newer broken BIOSes that believe eggs must be
smarter than hens -- see my other article for an opinion.)

-- 
cheers, J"org               .-.-.   --... ...--   -.. .  DL8DTL

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

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