Date: Thu, 10 Dec 2009 03:08:16 +0100 From: Polytropon <freebsd@edvax.de> To: Rolf Nielsen <listreader@lazlarlyricon.com> Cc: freebsd-questions@freebsd.org Subject: Re: Dangerously Dedicated Message-ID: <20091210030816.152b05c9.freebsd@edvax.de> In-Reply-To: <4B204FDD.3070005@lazlarlyricon.com> References: <20091209002231.EB7D01065741@hub.freebsd.org> <675083.74248.qm@web65510.mail.ac4.yahoo.com> <20091210012256.7d2e8240@gumby.homeunix.com> <4B204FDD.3070005@lazlarlyricon.com>
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On Thu, 10 Dec 2009 02:33:17 +0100, Rolf Nielsen <listreader@lazlarlyricon.com> wrote:
> As far as I understand it, it's called Dangerously Dedicated because it
> may cause other systems not to recognise the disk.
Primarily, it's called "dedicated" (only) because it describes
a setting where a whole hard disk is dedicated to the FreeBSD
operating system. The addition "dangerously" seems to describe
the danger that other operating systems cannot handle such a
disk layout, or may cause problems to them - but I don't know
this for sure because I'm not a "multi-booter". :-)
> Consequently,
> newfs'ing a slice without first partitioning it can hardly be DD, since
> that is what other systems do, right?
If you run newfs inside a slice, you would create a partition
covering the whole slice, and so it's still compatibility mode
(the opposite of DD mode); DD mode implies the absence of a
slice at all.
da0 da0s1 da0s1c
{ [ (/) ] }
Other systems operate on slice level, on a "DOS primary partition",
where they create their file systems in a certain way, e. g.
an msdos file system. In such a case, there are no partitions
inside the slice because partitions are specific to operating
systems like FreeBSD.
da0 da0s1 da0s2 da0s3 da0s3a
{ [ C: ] [ D: ] [ (/) ] }
msdosfs msdosfs ufs
--
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...
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