Coreboot: Difference between revisions
imported>Ajs124 m disable format hardening, because is breaks the crossgcc build |
Coreboot comes with a nix-shell expression. |
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== Building == | == Building as Nix Derivation == | ||
<syntaxHighlight lang= | There is a commented example of building Coreboot as Nix derivation at [https://github.com/blitz/nix-coreboot blitz/nix-coreboot] on Github. | ||
== Building in nix-shell == | |||
Coreboot as of 24.02 comes with a Nix shell expression for x86 at <code>util/nixshell//devshell-i386.nix</code>. | |||
<syntaxHighlight lang=bash> | |||
# clone coreboot git repository (latest master) | |||
git clone https://review.coreboot.org/coreboot.git --depth 1 | |||
# or for a specific coreboot version (I.E. version 4.15) | |||
git clone --branch 4.15 https://review.coreboot.org/coreboot.git --depth 1 | |||
# get 3rd party submodules in coreboot repository | |||
cd coreboot | |||
du -sh . # ~200 MByte | |||
git submodule update --init --checkout --depth 1 | |||
du -sh . # ~700 MByte | |||
nix-shell --pure util/nixshell/devshell-i386.nix | |||
# configure | |||
# set mainboard model, chip size, ... | |||
make menuconfig MENUCONFIG_COLOR=blackbg # blackbg = dark mode | |||
# build firmware | |||
make CPUS=$(nproc) | |||
# test firmware | |||
qemu-system-x86_64 -bios build/coreboot.rom -serial stdio | |||
</syntaxHighlight> | </syntaxHighlight> | ||
== Skip building toolchain == | |||
We can use our system toolchain to build coreboot firmware, but this is not recommended per [https://doc.coreboot.org/tutorial/part1.html coreboot docs]: | |||
<blockquote> | |||
you can possibly use your system toolchain, but the results are not reproducible, and may have issues, so this is not recommended | |||
</blockquote> | |||
To use the system toolchain, in <code>make menuconfig</code>, enable <code>General Setup > Allow building with any toolchain</code> | |||
== Building as derivation == | |||
coreboot is pretty picky about the toolchain it is built with and thus using the toolchain it comes with is the easiest path to success. There are commented Nix expressions that build coreboot [https://github.com/blitz/nix-coreboot here]. | |||
== See also == | |||
* https://doc.coreboot.org/tutorial/part1.html | |||
* https://www.coreboot.org/Build_HOWTO | |||
* https://www.coreboot.org/Lesson1 | |||
* https://wiki.gentoo.org/wiki/Coreboot | |||
* flashing the new bios image | |||
** https://doc.coreboot.org/tutorial/flashing_firmware/index.html | |||
** https://libreboot.org/docs/install/spi.html | |||
[[Category:Booting]] | |||