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Building for Beaglebone

Building for beaglebone uses the standard build tools, with only minor adjustments to the options.

Build options

Run setup_board with the standard options:

  ./setup_board --board=beaglebone

Run build_packages with these options:

  ./build_packages --board=beaglebone --nowithtest --nowithautotest --nowithfactory

Assign a password to the 'chronos' account with the standard commands:

  ./ chronos

Run build_image with these options:

  ./build_image --board=beaglebone base

Put the image onto a micro-SD card with a command similar to this:

  cros flash usb:// ../build/images/beaglebone/latest/chromiumos_base_image.bin

Connecting to the serial console

  1. Plug the USB cable into an Ubuntu system.
  2. Run these commands on the Ubuntu system.
sudo modprobe ftdi_sio vendor=0x0403 product=0xa6d0
sudo screen /dev/ttyUSB1 115200

Note: In some cases, the tty device may be /dev/ttyUSB0 instead.

Booting Chrome OS on the Beaglebone

Plug the micro-SD card into the beaglebone, and apply power. With the beaglebone black, hold down S2 button on board before applying power. Attach to the beaglebone console, hit return, and type 'boot' at the U-Boot prompt.

Note: Power the beaglebone using the 5V barrel connector. USB power will usually work but will fail when doing an operation with a high power draw (e.g. update_engine).