# cd /media/removable/USBDRIVE
# flashrom -p host -r flash.img

$ gpg --recv-key 8FEE950C
$ export DOWNLOAD_URL=http://jp.si/C201/paper-release-20180102/
$ wget "$DOWNLOAD_URL/tools/x86_64/libreboot-release/libreboot-release"
$ chmod a+x libreboot-release
$ ./libreboot-release prepare cros-scripts vboot-tools coreboot-depthcharge-veyron-speedy

$ VBOOT_TOOLS_PATH=tools/x86_64/vboot/vboot-tools tools/x86_64/cros-scripts/cros-scripts/cros-firmware-prepare vpd flash.img extract vpd.bin
$ VBOOT_TOOLS_PATH=tools/x86_64/vboot/vboot-tools tools/x86_64/cros-scripts/cros-scripts/cros-firmware-prepare vpd images/coreboot/coreboot-depthcharge-veyron-speedy/coreboot.rom replace vpd.bin
$ cp images/coreboot/coreboot-depthcharge-veyron-speedy/coreboot.rom .

# flashrom -p host -w coreboot.rom
# crossystem | grep dev_boot