[trilinearnz]

Thanks for that. I was still wondering why the flashing couldn't be achieved on a running system as-per the usual method of updating the proprietary manufacturer's BIOS. I found this key quote on the Coreboot web site:

There are various protection schemes that make it impossible to modify or replace a firmware from a running system. coreboot allows to disable these mechanisms, making it possible to overwrite (or update) the firmware from a running system.

Usually you must use the external method once to install a retrofitted coreboot and then you can use the internal method for future updates.

https://doc.coreboot.org/tutorial/flashing_firmware/index.ht...