Sage Engineering maintains a Coreboot-based, SeaBIOS payload-based firmware for the Intel MinnowBoard MAX.
Today, they’ve announced an updated release. This update allows for flashing the boot image without a hardware device.
“The binary SageBIOS boot ROM image, which is flashed on the development board’s SPI Flash device, is based on the Intel Firmware Support Package (Intel FSP) and coreboot open source initialization. The SageBIOS OSP replaces UEFI firmware that comes installed on both versions of MinnowBoard MAX and will support booting a greater variety of operating systems, including FreeBSD and a variety of RTOS, as well as legacy operating systems such as older versions of Microsoft Windows and even DOS. The SageBIOS OSP will support all the operating systems supported by the native UEFI firmware, such as Windows and Linux. In addition, the SageBIOS OSP will boot both 32-bit and 64-bit operating systems with a single boot image.”
The download of the “demo ROM” is free, but email registration is required.
More information:
http://lists.elinux.org/pipermail/elinux-minnowboard/Week-of-Mon-20150518/001523.html
http://www.se-eng.com/minnow/
Firmware Security 