Acer CB3-111 Chromebook

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Disabling the hardware write protection

  • Unscrew all 12 screws on the back of the chromebook and use your finger or a spudger to remove the back, being careful not to rip the ribbon cable attached to both sides.
  • Remove the big flat screw near the wireless NIC. Picture
  • Verify that hardware write is disabled by typing the following commands in crosh (Ctrl+Alt+T)
shell
sudo su
flashrom --wp-disable
flashrom --wp-status
  • The output should include 'WP: write protect is disabled'

Flashing custom firmware

Warning: Flashing custom firmware to your Chromebook is risky, do so at your own risk.
Warning: You need to have developer mode at this point.
  • Hit Ctrl+Alt+T
  • Execute the following commands:
shell
cd
curl -k -L -O https://johnlewis.ie/flash_chromebook_rom.sh
sudo -E bash flash_chromebook_rom.sh
  • Follow the following menu's according to instructions (and cross your fingers that your Chromebook doesn't get bricked).

Boot into SeaBIOS

  • With the white "OS verification disabled" page on the screen, hit Ctrl+L to boot into SeaBios.

Boot into ChromeOS

Warning: You will only be able to boot into ChromeOS if you have not formatted the internal SSD (for example, installed Arch to a USB drive)
  • With the white "OS verification disabled" page on the screen, hit Ctrl+D to continue to boot ChromeOS.

Installation Media

Since the CB3-111 only has a 16GB (non-upgradeable) eMMC drive, it may be a good idea to install Arch Linux on a fast USB 3.0 drive rather than the internal drive. This will allow you to boot into ChromeOS as well as Arch Linux. Make sure to use a fast drive, since not just any drive will provide a comfortable experience.

Post Installation Configuration

For information on general Chromebook post installation configuration (hotkeys, power key handling ...) see the Post installation configuration on the Chromebook page.