Kontron AM4022 uEFI BIOS - Manual (Page 58)

The uEFI Shell AM4022 uEFI BIOS
Page 52 ID 1052-1333, Rev. 1.0
6.2.6 kclearnvram uEFI Shell Command
kclearnvram
FUNCTION: Clear the NVRAM to restore the system’s default settings
SYNTAX:
kclearnvram [-q]
where:
-q Silent mode operation
(for use of this command in shell scripts)
DESCRIPTION: Invoking the kclearnvram command clears the system NVRAM. Since
all EFI settings are stored inside the NVRAM, the default settings are
loaded afterwards.
When invoked without the “-q” option, this command must be confirmed
by pressing “c”.
If invoked with the “-q” option, no confirmation is requested.