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  1. # Skulls - not quite Heads
  2. pre-built [coreboot](https://www.coreboot.org/) images with an easy
  3. installation process
  4. ![seabios_bootmenu](x230/front.jpg)
  5. Skulls makes it easy to install an _unlocked_, _up-to-date_ and _easy to use_
  6. coreboot-based BIOS on your laptop.
  7. * _unlocked_: software update after first-time flashing / no restrictions for connected hardware
  8. * _easy to use_: SeaBIOS - simply a boot menu, compatible with Windows and Linux
  9. * _up to date_: Frequently a new image with the latest versions of all components
  10. ## Supported Laptops
  11. * [Lenovo Thinkpad X230 and X230T](x230/README.md)
  12. ## When do we do a release?
  13. Either when
  14. * There is a new SeaBIOS release,
  15. * There is a new Intel microcode release (for our CPU model),
  16. * There is new coreboot development that affects us, or
  17. * We change the config
  18. ## How we build
  19. * Everything necessary to [build coreboot](https://www.coreboot.org/Build_HOWTO) is included here
  20. * When doing a release, we always try to upload to coreboot's [board status project](https://www.coreboot.org/Supported_Motherboards)
  21. * If we add out-of-tree patches, we always [post them for review](http://review.coreboot.org/) upstream
  22. * The scripts to build reproducibly are based on
  23. [these](https://github.com/Thrilleratplay/coreboot-builder-scripts)
  24. scripts that use the
  25. [coreboot-sdk](https://hub.docker.com/r/coreboot/coreboot-sdk/).
  26. ## Alternatives
  27. We aim to be the easiest possible coreboot distribution - both
  28. to install and to use. And since our flash image is unlocked to enable
  29. software updates, it's easy to move to alternative systems from it:
  30. * [Heads](http://osresearch.net/) - a coreboot distribution
  31. with pre-built (or reproducibly buildable) flash images (for the X230 and others). Heads
  32. includes Linux, with tools to create a trusted boot chain using your GPG key
  33. and the TPM.
  34. * [libreboot](https://libreboot.org/) - a coreboot distribution with pre-built
  35. image releases. The X230 is currently not supported (the X200 is) - libreboot
  36. images are built from free software only and include the GRUB bootloader.