Date: Sun, 21 Sep 2008 21:28:41 +0200
From: Mel <fbsd.questions@rachie.is-a-geek.net>
To: freebsd-questions@freebsd.org
Cc: Chad Perrin <perrin@apotheon.com>
Subject: Re: looking for a disk partition ("slice") editor
Message-ID: <200809212128.41530.fbsd.questions@rachie.is-a-geek.net>
In-Reply-To: <20080921165009.GB3097@kokopelli.hydra>
References: <200809211419.m8LEJe3Y026683@mp.cs.niu.edu> <20080921165009.GB3097@kokopelli.hydra>
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On Sunday 21 September 2008 18:50:09 Chad Perrin wrote:
> Perhaps, if there's some *good* reason why we *shouldn't* want to "mess
> with slices" while the system is running, someone can explain why.
=46rom geom(4):
Several flags are provided for tracing GEOM operations and unlocking p=
ro-
tection mechanisms via the kern.geom.debugflags sysctl. All of these
flags are off by default, and great care should be taken in turning th=
em
on.
0x10 (allow foot shooting)
Allow writing to Rank 1 providers. This would, for example, all=
ow
the super-user to overwrite the MBR on the root disk or write ra=
n-
dom sectors elsewhere to a mounted disk. The implications are
obvious.
There should be several partition editors in sysutils/*, so the only thing =
you=20
really need is to set kern.geom.debugflags to 16.
A quick scan of gpart(8) man page might have support for logical paritions,=
=20
but I'm not an expert:
add Add a new partition to the partitioning scheme given by geom.
The partition begins on the logical block address given by the
-b start option. Its size is expressed in logical block numb=
ers
and given by the -s size option. The type of the partition is
given by the -t type option. Partition types are discussed in
the section entitled "Partition Types".
=2D-=20
Mel
Problem with today's modular software: they start with the modules
and never get to the software part.
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