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Date:      Sun, 5 Oct 2008 03:47:25 -0700
From:      Jeremy Chadwick <koitsu@FreeBSD.org>
To:        Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
Cc:        Don O'Neil <lists@lizardhill.com>, freebsd-questions@freebsd.org, 'Alexandre Biancalana' <biancalana@gmail.com>
Subject:   Re: Can't add new 1TB disk in FreeBSD 6.1
Message-ID:  <20081005104725.GA82205@icarus.home.lan>
In-Reply-To: <20081005104253.GB82084@icarus.home.lan>
References:  <D3314319D28D4C51B1D721DFFE21F942@mickey> <gc7s7u$kba$1@ger.gmane.org> <20081004181923.N2683@wojtek.tensor.gdynia.pl> <4A5E18EB2ED142C2B97EFD5A82AA805F@mickey> <8e10486b0810041351je5262fbi3bee00f47ef3bc68@mail.gmail.com> <10435563D3EC45D8A9AE00AECF113945@mickey> <20081005110745.T5124@wojtek.tensor.gdynia.pl> <20081005104253.GB82084@icarus.home.lan>

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On Sun, Oct 05, 2008 at 03:42:53AM -0700, Jeremy Chadwick wrote:
> On Sun, Oct 05, 2008 at 11:07:58AM +0200, Wojciech Puchar wrote:
> >>>
> >>>
> >>> I tried using fdisk first, same problem, won't let me write to the disk.
> >>
> >> Do you will use the entire disk in one partition ? If so, just do:
> >> newfs /dev/ad4
> >>
> > yes you can. i actually do this
> 
> Isn't this what's called "Dangerously Dedicated" mode, and is considered
> "very risky behaviour" on FreeBSD nowadays?
> 
> I would be wary of doing it that way.  Using slices is the preferred
> method, e.g. newfs /dev/ad4s1a.

Specific details are covered in the FAQ:

http://www.freebsd.org/doc/en/books/faq/disks.html#DANGEROUSLY-DEDICATED

The bottom line should be obvious: do not use this method.

-- 
| Jeremy Chadwick                                jdc at parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |




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