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# coreboot-x230 |
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pre-built [coreboot](https://www.coreboot.org/) images and documentation on |
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how to flash them for the [Thinkpad X230](https://pcsupport.lenovo.com/en/products/laptops-and-netbooks/thinkpad-x-series-laptops/thinkpad-x230) |
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These images |
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* include [SeaBIOS](https://seabios.org/SeaBIOS) as coreboot payload, for maximum compatibility. |
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* are meant to be [flashed externally](#how-to-flash) (...top.rom release files) |
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* ...full.rom release files are not functional entirely. Only the the top 4M are usable. |
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* are compatible with Windows and Linux |
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how to flash them for the |
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[Thinkpad X230](https://pcsupport.lenovo.com/en/products/laptops-and-netbooks/thinkpad-x-series-laptops/thinkpad-x230). |
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SeaBIOS is used as coreboot payload to be compatible with Windows and Linux |
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systems. |
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## Latest build (config overview and version info) |
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See our [releases](https://github.com/merge/coreboot-x230/releases) |
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@ -169,27 +166,13 @@ Stick or scp :) (but you need even more hardware or a network). |
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### Example: internal |
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NOT YET AVAILABLE HERE |
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CAUTION: THIS IS NOT ENCOURAGED |
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* make sure you have your backups |
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* You have to have your 8MB chip flashed externally after `ifdtool -u ifdmegbe.rom` before this, once |
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* according to the [flashrom manpage](https://manpages.debian.org/stretch/flashrom/flashrom.8.en.html) this is very dangerous! |
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* very convenient - you don't need any additional hardware |
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* here you'll use the ...full.rom release file |
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* very convenient, but according to the [flashrom manpage](https://manpages.debian.org/stretch/flashrom/flashrom.8.en.html) this is very dangerous! |
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* Boot Linux with the `iomem=relaxed` boot parameter (for example set in /etc/default/grub) |
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* use `internal` as flashrom programmer name |
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* create the following file (named x230-layout.txt): |
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0x00000000:0x007fffff ifdmegbe |
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0x00800000:0x00bfffff bios |
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`flashrom -p internal --layout x230-layout.txt --image bios -c "MX25L3206E" -w x230_coreboot_seabios_example_full.rom` |
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You may have to set programmer options `internal:laptop=force_I_want_a_brick,spispeed=128` or parts |
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of it, or other settings... |
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* download a released 4MB "top" rom image |
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* run `prepare_internal_flashing.sh` for generating all necessary files and instructions |
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## How we build |
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* Everything necessary to build coreboot (while only the top 4MB are usable of course) is included here |
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Martin Kepplinger
6 years ago