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54 lines
1.9 KiB
Markdown
54 lines
1.9 KiB
Markdown
---
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title: Install Canoeboot on Lenovo ThinkPad X230/X230T
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x-toc-enable: true
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...
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Open source BIOS/UEFI firmware
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------------------------------
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This document will teach you how to install Canoeboot, on your
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Lenovo ThinkPad X230 laptop motherboard.
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Canoeboot is a [Free Software](https://writefreesoftware.org/learn) project
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that replaces proprietary BIOS/UEFI firmware.
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**[PLEASE READ THESE INSTRUCTIONS BEFORE INSTALLING](ivy_has_common.md), OR
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YOU MAY BRICK YOUR MACHINE!! - Please click the link and follow the instructions
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there, before flashing. For posterity,
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[here is the link again](ivy_has_common.md).**
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Splitting The Rom
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-----------------
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You can use `dd` to easily split your rom into the two separate portions for
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external flashing.
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dd if=canoeboot.rom of=top.rom bs=1M skip=8
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dd if=canoeboot.rom of=bottom.rom bs=1M count=8
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Flash the top chip with top.rom, and tho bottom chip with bottom.rom.
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Don't worry about knowing which chip is which on a standard setup; flashprog will let you know if the
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image size is incorrect for the chip you're flashing.
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### 4MB CBFS
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CBFS is 4MB on this board, so when external flashing, you can just break off
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the upper 4MB part of the image and flash that. Keep this in mind if you're
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flashing externally.
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When externally flashing the lower 8MB part, you can optionally flash the
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IFD and GbE regions if that is appropriate for your setup.
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Disassembly
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-----------
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Start by removing the battery.
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Remove every screw from the bottom of the machine marked with a keyboard/touchpad indicator.
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Pry up the keyboard and separate it from the palmrest.
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Unplug the ribbon cable from the palmrest and pry it off as well.
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Pull up the protective cover to reveal the two soic chips for flashing.
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