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

Alexander Couzens lynxis at fe80.eu
Tue Sep 26 17:19:05 CEST 2017


> 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.
-- 
Alexander Couzens

mail: lynxis at fe80.eu
jabber: lynxis at fe80.eu
mobile: +4915123277221
gpg: 390D CF78 8BF9 AA50 4F8F  F1E2 C29E 9DA6 A0DF 8604
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