backup BIOS settings

[Łukasz Kurek]

Hi,
Is it possible to backup BIOS settings (CMOS configuration) to file and restore this settings on the other machine (the same hardware configuration and the same BIOS)?

I try do it for this way:

kldload nvram

dd if=/dev/nvram of=nvram.bin   (backup)

dd if=nvram.bin of=/dev/nvram   (restore)


but this way always load default BIOS settings, not my (probably there is some kind of error).