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Date: Fri, 7 Jun 2002 15:58:23 -0400
From: William Thompson <wt@electro-mechanical.com>
To: Samuel Flory <sflory@rackable.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, linux-kernel@vger.kernel.org
Subject: Re: PDC20267 + RAID can't find raid device
Message-ID: <20020607155823.S7291@coredump.electro-mechanical.com>
In-Reply-To: <20020606111918.F7291@coredump.electro-mechanical.com> <1023391095.3423.112.camel@flory.corp.rackablelabs.com> <1023463727.25522.39.camel@irongate.swansea.linux.org.uk> <1023479646.3700.174.camel@flory.corp.rackablelabs.com>
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> > >   One major issue for me is that you can use, and mount both the
> > > /dev/ataraid/d0 devices, and the /dev/hd devices.  This makes for lots
> > > of fun in the Red Hat installer, and Cerberus.   
> > 
> > Stupidity management for the superuser is a user space issue in Unix
> > systems. If the RH installer does let you do stupid things, please
> > bugzilla it.
> 
>   Actually I was looking at what it would take to add support for
> ataraid in the RH installer.  Is there some simple way to determine that
> a device is a part of an ataraid array?  Parsing dmesg makes for some
> really ugly and easily broken code.

The controller IIRC writes this information on the disk.  I'm pretty sure
it's toward the end of the disk though.
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