unique hardware identification

[John Baldwin]

On Thursday 01 February 2007 14:40, M. Warner Losh wrote:
> In message: <20070201104917.C82313 at xorpc.icir.org>
>             Luigi Rizzo <rizzo at icir.org> writes:
> : On Thu, Feb 01, 2007 at 11:38:51AM -0700, M. Warner Losh wrote:
> : > In message: <20070128181132.GR927 at turion.vk2pj.dyndns.org>
> : >             Peter Jeremy <peterjeremy at optushome.com.au> writes:
> : > : On Sun, 2007-Jan-28 10:39:36 -0600, Jon Passki wrote:
> : > : >If the machine is a PXE-compliant device [2], it should have a GUID/ 
> : > : >UUID [1] available.  This can be exposed by sysutil/hal [3] via the  
> : > : >smbios.system.uuid field.
> : > : 
> : > : You can also get it via kenv(8) without needing any ports:
> : > : # kenv smbios.system.uuid
> : > : 9F345F4F-BEFC-D431-1340-61235A56DEF9
> : > 
> : > I wonder why the smbios stuff isn't exported via sysctls as well...
> : 
> : and this is probably a lazy vendor :)
> : 
> : 	smbios.bios.reldate="07/12/2006"
> : 	smbios.bios.vendor="American Megatrends Inc."
> : 	smbios.bios.version="P1.10"
> : 	smbios.chassis.maker="To Be Filled By O.E.M."
> : 	smbios.chassis.serial="To Be Filled By O.E.M."
> : 	smbios.chassis.tag="To Be Filled By O.E.M."
> : 	smbios.chassis.version="To Be Filled By O.E.M."
> : 	smbios.planar.maker="                      "
> : 	smbios.planar.product="775i945GZ"
> : 	smbios.planar.serial="                      "
> : 	smbios.planar.version="                      "
> : 	smbios.socket.enabled="1"
> : 	smbios.socket.populated="1"
> : 	smbios.system.maker="To Be Filled By O.E.M."
> : 	smbios.system.product="775i945GZ"
> : 	smbios.system.serial="To Be Filled By O.E.M."
> : 	smbios.system.uuid="00020003-0004-0005-0006-000700080009"
> : 	smbios.system.version="To Be Filled By O.E.M."
> 
> Heh!
> 
> My comment though is why do we have to go to kenv when we could
> export these via sysctl, like everything else.

Because the kernel doesn't expose them.  This is done via /boot/loader.

-- 
John Baldwin