"I don't get the impression that the CSM provides any passthrough capability to
UEFI. With CSM the computer appears strictly as BIOS not UEFI.
And not all UEFI firmware have a CSM."
Yeah, I was hoping that the memory which contains the setting that says whether
to boot into EFI mode or BIOS mode would be accessible both while in BIOS mode
and EFI mode.
Greg, I'm no expert when it comes manipulating system firmware settings from
the OS, but out of curiosity, when booted into Linux, do you have a /dev/nvram
when booted in BIOS mode? And what about when booted into EFI mode?
Jake
Sent from my iPhone
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