Can't add new 1TB disk in FreeBSD 6.1

Jeremy Chadwick koitsu at FreeBSD.org
Sun Oct 5 10:47:27 UTC 2008


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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