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| coreboot lesson 1 - Starting from scratch
| | {{#externalredirect: https://doc.coreboot.org/tutorial/part1.html}} |
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| From a fresh [http://releases.ubuntu.com/15.10/ubuntu-15.10-desktop-amd64.iso ubuntu 15.10 linux] install, here are all the steps required:
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| ==Download, configure, and build coreboot==
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| Install tools and libraries needed for coreboot
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| $ sudo apt-get install git-core libncurses5-dev m4 bison flex
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| Download coreboot source tree:
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| $ git clone http://review.coreboot.org/coreboot
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| $ cd coreboot
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| build toolchain (This can take a significant amount of time)
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| $ make crossgcc-i386 CPUS=$(nproc)
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| Build the payload - coreinfo
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| $ pushd payloads/coreinfo
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| $ make olddefconfig
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| $ make
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| $ popd
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| configure mainboard to build coreboot
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| $ make menuconfig
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| select 'Mainboard' menu
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| select 'Mainboard model'
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| choose 'QEMU x86 i440fx/piix4'
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| select exit
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| select 'Payload' menu
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| select 'Add a Payload'
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| choose 'An Elf executable payload'
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| select 'Payload path and filename'
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| enter 'payloads/coreinfo/build/coreinfo.elf'
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| select exit
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| select exit
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| select yes
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| check your configuration:
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| $ make savedefconfig
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| $ cat defconfig
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| There should only be three lines:
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| CONFIG_BOARD_EMULATION_QEMU_X86_I440FX=y
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| CONFIG_PAYLOAD_ELF=y
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| CONFIG_PAYLOAD_FILE="payloads/coreinfo/build/coreinfo.elf"
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| build coreboot:
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| $ make
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| == Test the image using QEMU ==
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| Install QEMU
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| $ sudo apt-get install qemu
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| Start QEMU:
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| $ qemu-system-x86_64 -bios build/coreboot.rom -serial stdio
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| You should see the serial output of coreboot in the original console window, and a new window will appear running the coreinfo payload.
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