From mboxrd@z Thu Jan  1 00:00:00 1970
From: Greg KH <greg@kroah.com>
Date: Tue, 20 Apr 2010 19:39:13 +0000
Subject: Re: Extracting system UUID...
Message-Id: <20100420193913.GA7238@kroah.com>
List-Id: <linux-hotplug.vger.kernel.org>
References: <20100420185205.GA5138@mcpierce-desktop.usersys.redhat.com>
In-Reply-To: <20100420185205.GA5138@mcpierce-desktop.usersys.redhat.com>
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To: linux-hotplug@vger.kernel.org

On Tue, Apr 20, 2010 at 03:30:37PM -0400, Darryl L. Pierce wrote:
> On Tue, Apr 20, 2010 at 12:11:42PM -0700, Greg KH wrote:
> > On Tue, Apr 20, 2010 at 02:52:05PM -0400, Darryl L. Pierce wrote:
> > > Does anything return the UUID for the host system? Such as what was
> > > returned by hal with:
> > > 
> > > (mcpierce@mcpierce-desktop:~)$ hal-get-property --udi \
> > >      /org/freedesktop/Hal/devices/computer --key system.hardware.uuid
> > > 00DD19E3-DD3A-DE11-90DA-812C97507C34
> > 
> > What piece of hardware on the host system would create such a "computer"
> > uuid?
> 
> I believe it comes from BIOS.

Ah, as Lennart just pointed out, you really don't want to use that, it
can't be trusted on a lot of platforms.  Unless you don't mind having
the same value for lots of different machines :)

What do you want to use this value for?

thanks,

greg k-h