Have a anyidea? that change the serial number of DMI?

[김유석]

Dear Sir.

Currently,

I was successed the read a serial number, and product name useded the 
DMI, in kernel space and user space.

- kernel space.

use the "dmi_get_system_info()"

- user space

use the "dmidecode"

- coreboot space

I don't know any soultion.

READ is OK.

But, i want to write or chage the serial number.
But, i can't found the any solution.

I try to find the some API in kernel source tree. for example) grep 
"dmi_set" * -Rn
But can't found the API.

*Question.*
  How to write or change the serial number using DMI? in kernel or in 
userspace or in coreboot?

Thank you.

On 03/29/2017 03:51 AM, 김유석 wrote:
> Dear Sir.
>
> Currently,
>
> I was successed the read a serial number, and product name useded the 
> DMI, in kernel space and user space.
>
> kernel space.
>
> use the "dmi_get_system_info()"
>
> user space
>
> use the "dmidecode"
>
> coreboot space
>
> I don't know any soultion.
>
> READ is OK.
>
> But, i want to write or chage the serial number.
> But, i can't found the any solution.
>
> I try to find the some API in kernel source tree. for example) grep 
> "dmi_set" * -Rn
> But can't found the API.
>
> *Question.*
>  How to write or change the serial number using DMI? in kernel or in 
> userspace or in coreboot?
>
> Thank you.

I am not entirely sure what you want - but if you use menuconfig the 
regular option to set a serial number is:

MAINBOARD_SERIAL_NUMBER under "System Tables"
You have to have "Generate SMBIOS Tables" enabled as well.

AFAIK it is not currently possible to dynamically update it.