Re: [cobalt-users] Which one of these is the correct serial number?

[Lyle Scheer <lyle.scheer@xxxxxxx>]

On Fri, 2003-02-07 at 19:35, Matt Darnell wrote:
> Which one of these is the correct serial number?  I wonder why they are
> different, these are from the same box.
> 
> [root /root]# cat /proc/serialnumber
> c9000000dff31401

This is the number embedded in the dallasID chip on the motherboard of
the unit.  The DallasID is a one pin chip with a unique ID on it.  This
number cannot be erased or reprogrammed.

> [root /root]# cmos -c serialnumber
> 5G02FM1100829 (invalid csum)

This should be the same number as stored on the SN label on the back of
the unit.  Note that it is stored in CMOS.  Potentially, if the battery
gives out, this number could eventually be erased.  Useful for customer
service people who might log into the unit and grab the SN if it's
there, but not so secure if you're writing an application that provides
a license.  Embedded in this SN are useful bits of information such as
the factory code for the factory the unit was built in (M), the year and
week the unit was manufactured (110 -- 2001 week 10), The hardware
revision of the unit (F), and the software revision the unit was
manufactured with (02).

- Lyle