Preserve BIOS settings for copying flash between identical machines

[Clayton Falzone]

After a successful flash on the next boot the firmware resorts to default
config. Is there some way around this? It would be a useful feature to
preserve settings between boots.

For example, reading the FLASHROM to a file...
$ sudo flashrom -r bios_backup.bin -p internal
And then writing the bios to an identical but physically different machine
$ sudo flashrom -w bios_backup.bin -p internal

It would be quite a feature to preserve settings to this new machine. Is
this possible?