Re: [coreboot] Where is the serial number stored on the thinkpad ivy/sandy bridge laptops

On 09/26/2017 11:19 AM, Alexander Couzens wrote:
> > I am curious as to how it survives the coreboot flash re-write, maybe
> > the EC?
>
> e.g.
> > Base Board Information
> >    Manufacturer: LENOVO
> >    Product Name: 4291QT1
> >    Version: ThinkPad X220
> >    Serial Number: XYZU1234...
>
> comes from a small i2c eeprom (at24 based).
> src/drivers/i2c/at24rf08c/lenovo_serials.c
>
> best,
> lynxis
>
> ps: The at24 also contains your lenovo bios password.

Ah thanks
How would one change the serial? and is this the only electronic 
identifier on an X230 besides the MAC?

I am also curious as to why this was included in coreboot.