In an UEFI based system (x86_64, Rangeley cpu), the bios bootup option
shows each UEFI partition. Where as in legacy bios mode, the bios bootup menu
would show just SSD, USB etc.
In case of UEFI system, the boot-order, boot-current etc (i.e. UEFI config 
data) is stored
in bios area ?

When we update bios using flashrom, we are seeing that the UEFI config data is 
getting lost/over-written.
Because of which, bios does not know that it is running on uefi system and 
probably tries to invoke
grub using legacy way, which hangs.

How can we instruct flashrom to not over-write UEFI config data in bios area.


regards
lakesh

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