On Wed, Nov 22, 2017 at 10:09 AM, ingegneriaforense@alice.it < ingegneriaforense@alice.it> wrote:
Hello Guys !
I apologize with you if my question seems silly:
can you tell me if Coreboot stores a log of the POST phase in its EPROM memory ?
If so, is it possible to retrive the log by the Operative System and read it ?
Thanks in advance.
Vincenzo.
There are a few ways you can log stuff in coreboot. Console output can be stored in DRAM which can later be retrieved from the OS using the `cbmem` tool, or written to SPI flash (warning: this is for debugging may cause premature wear). POST codes can be saved to CMOS or sent to an external device (such as an EC or other microcontroller) that can store them. There's also an event log which uses a SMBIOS-like record format that is written to flash.
Run `make menuconfig` and look under "Console" for more details.