I don't think so -- unless you have a laptop flashed with a free
software BIOS / boot firmware that you can inspect and modify. There are
a handful of dated possibilities out there like that (Thinkpad x60
models that support coreboot, Lemote Yeelongs), but not the vast
majority of laptops. The situation with laptops actually seems pretty
analogous to the worst category of smartphones (those where the baseband
firmware shares the main CPU and RAM).
Unfortunately, Coreboot is still not mainstream, netiher is Lemote.
UEFI is the current mainstream system firmware, for Intel systems, and
ramping up quickly for ARM (though not yet on Android-based devices yet,
AFAIK).
Intel's Tunnel Mountain UEFI dev platform lets you flash your own
UEFI-based firmware, and mainly targets firmware IHVs.
http://www.tunnelmountain.net/
http://uefidk.intel.com/develop/workstation-development-kit
The Intel Atom-based MinnowBoard is a new UEFI dev platform, and it's
Linux-based, and targets hackers; it uses Intel's definition of "Open
Hardware", mainly meaning no NDAs involved. It is much cheaper and
smaller than the above box.
http://minnowboard.org/
http://uefidk.intel.com/content/minnowboard-uefi-firmware
Both of these boxes let you reflash your system firmware with your
custom build of BSD-licensed TianoCore UEFI.
For Linaro's Linux/ARM device targets, Linaro also has a fork of
Tianocore, and ships their own images. You can use the Linaro targets
and modify this forked Tianocore firmware, as well, but it requires a
bit more ARM-centric eLinux skills.
https://wiki.linaro.org/ARM/UEFI
<soapbox>
There is a large OEM/ODM/IBV/IHV/ISV ecosystem that currently runs the
hardware, and it is UEFI-centric. IMO, focusing only on fringe
Lemote/Coreboot technology is not a good bet.
Personally, I wish EFF/FSF and other open/free tech groups would form a
Linaro-like firmware group and produce their own UEFI firmware image, as
an option for OEMs.
There needs to be some Free Boot alternative to Secure Boot, with certs
from EFF/FSF/etc and the open source distro vendors, not just OEMs/MSFT
in the firmware, and it needs to target booting from a handful of main
open source distros, not just 1 commercial OS. Else, UEFI will turn
Personal Computers into Windows PCs, ending the era of General Purpose
computing.
</soapbox>
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