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Nvramtool
Jul 20, 2023
Utility for reading, writing the contents of CMOS memory
nvramtool is a utility for reading/writing coreboot parameters and displaying information from the coreboot table. It is intended for x86-based systems both 32-bit and 64-bit that use coreboot.
The coreboot table resides in low physical memory, and may be accessed through the /dev/mem interface. It is created at boot time by coreboot, and contains various system information such as the type of mainboard in use. It specifies locations in the CMOS nonvolatile RAM where the coreboot parameters are stored.
For information about coreboot, see http//www.coreboot.org/.
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