Difference between revisions of "Chromebooks"

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(Created page with "== Overview == A good place to start is the [http://www.chromium.org/chromium-os/developer-information-for-chrome-os-devices Chromium site]. They have guides howto set your Ch...")
 
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A good place to start is the [http://www.chromium.org/chromium-os/developer-information-for-chrome-os-devices Chromium site]. They have guides howto set your Chromebook into developer-mode and disassembly guides for almost all Chormebooks.  
 
A good place to start is the [http://www.chromium.org/chromium-os/developer-information-for-chrome-os-devices Chromium site]. They have guides howto set your Chromebook into developer-mode and disassembly guides for almost all Chormebooks.  
  
Both things will be nessary, if you want to flash your own version of Coreboot onto your Chromebook.  
+
Both things will be nessary, if you want to flash (in-system) your own version of Coreboot onto your Chromebook.  
It is nessary to close a circuit on the motherboard via either a jumper or a srew disable the write-protection of the spi chip. And to use the flashing tool [http://flashrom.org/Flashrom flashrom] in ChromeOs, you have to be in the developer-mode. If you already installed a Gnu/Linux-system or likely you can also use the flashrom from there (but then you would be in developer-mode any way).
+
It is nessary to close/open a circuit on the motherboard via either a jumper or a srew to disable the write-protection of the spi chip. And to use the flashing tool [http://flashrom.org/Flashrom flashrom] in ChromeOs, you have to be in the developer-mode. If you already installed a Gnu/Linux-system or likely you can also use the flashrom from there (but then you would be in developer-mode any way).
  
 
Note: The first three Chromebooks are '''not''' supported by coreboot (and flashrom!?) at the moment. Namely
 
Note: The first three Chromebooks are '''not''' supported by coreboot (and flashrom!?) at the moment. Namely
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| July 2011 || Acer || AC700 Chromebook || ZGB  
 
| July 2011 || Acer || AC700 Chromebook || ZGB  
 
|}
 
|}
They are running Insyde H20
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They are running Insyde H2C some UEFI.
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== Lumpy & Stumpy ==
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Use the [http://www.chromium.org/chromium-os/developer-information-for-chrome-os-devices/samsung-sandy-bridge disassembly guide] to disassemble your Chromebook 
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till you see the write-protect-[https://a77db9aa-a-7b23c8ea-s-sites.googlegroups.com/a/chromium.org/dev/chromium-os/developer-information-for-chrome-os-devices/samsung-sandy-bridge/lumpy-internals.jpg jumper] between the Battery and Ram next to the Keyboard-Connector. Pull it or if there is non put one on. Now Assemble again and flash your own coreboot version onto your Chromebook.

Revision as of 23:52, 11 June 2013

Overview

A good place to start is the Chromium site. They have guides howto set your Chromebook into developer-mode and disassembly guides for almost all Chormebooks.

Both things will be nessary, if you want to flash (in-system) your own version of Coreboot onto your Chromebook. It is nessary to close/open a circuit on the motherboard via either a jumper or a srew to disable the write-protection of the spi chip. And to use the flashing tool flashrom in ChromeOs, you have to be in the developer-mode. If you already installed a Gnu/Linux-system or likely you can also use the flashrom from there (but then you would be in developer-mode any way).

Note: The first three Chromebooks are not supported by coreboot (and flashrom!?) at the moment. Namely

Release date Manufacturer Model Project code name
December 2010 Google Cr-48 Mario
June 2011 Samsung Series 5 Chromebook Alex
July 2011 Acer AC700 Chromebook ZGB

They are running Insyde H2C some UEFI.

Lumpy & Stumpy

Use the disassembly guide to disassemble your Chromebook till you see the write-protect-jumper between the Battery and Ram next to the Keyboard-Connector. Pull it or if there is non put one on. Now Assemble again and flash your own coreboot version onto your Chromebook.