Subject: Re: exporting hardware "system ID" by sysctl
To: Tim Rightnour <>
From: Thor Lancelot Simon <>
List: tech-kern
Date: 10/17/2007 17:04:59
On Wed, Oct 17, 2007 at 02:01:45PM -0700, Tim Rightnour wrote:
> On 17-Oct-2007 Thor Lancelot Simon wrote:
> > That's why (unfortunately) it seems like it really is important to export
> > the type of each system ID provided.
> I can certainly see the logic in providing these values, especially if there
> are more than one on some of these systems.  However, I would like to see a
> general one that could be queried at a lower node.. like:
> hw.sysid.smbios.serial="123456"
> hw.sysid.whatever.serial="78901"

So, here's another annoying fact: you need the rest of the information for
each of the SMBIOS objects that can have a serial number in order to render
the serial number unique (manufacturer, system type, ...).

Some of the objects have a UUID field but it's not always filled in!