Flashing the BIOS*
To remove the ChromeOS boot loader entirely and use a custom build of Coreboot (SeaBIOS), head over to John Lewis’ ROM page. Make sure you remove the Write Protect Screw. Alternatively, running the script in a new terminal window with Developer Mode enabled will allow you to flash your BIOS. Make sure that your laptop is plugged in and has at least 50% battery before attempting to flash your system!
cd;
rm -f flash_chromebook_rom.sh;
curl -O https://johnlewis.ie/flash_chromebook_rom.sh;
sudo -E bash flash_chromebook_rom.sh
*Note that a UEFI port using TinyCore has not been known to exist for this system yet.