Setting Up A ChromiumOS Dev Environment

Setting up a fully functional ChromiumOS development environment on actual Chromebook hardware

Set up environment

export DEV_DIR="/opt" mkdir -p $DEV_DIR export CHROMIUM_DIR="$DEV_DIR/chromiumos" mkdir -p $CHROMIUM_DIR export PATH="$DEV_DIR/depot_tools:$PATH" # The BOARD variable used here is specific for the Chromebook that is # being targeted, a more generic target like "amd64-generic" could # be more useful for you needs. export BOARD=chell # The USB_DEVICE variable refers to the USB device that will be used # for flashing ChromiumOS onto a Chromebook. # Make sure that this device does not contain anything important! export USB_DEVICE="/dev/sda"

Install dependencies

sudo apt install git-core gitk git-gui subversion curl cd $DEV_DIR git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git

Get ChromiumOS source

cd ${CHROMIUM_DIR} repo init -u https://chromium.googlesource.com/chromiumos/manifest.git repo sync -j25

Build ChromiumOS

cros_sdk -- ./build_packages --board=${BOARD} cros_sdk -- ./build_image --board=${BOARD}

Flash ChromiumOS to storage medium

cros_sdk -- cros flash --board=${BOARD} usb:/$USB_DEVICE

Install ChromiumOS on Chromebook

Enter Chromebook into dev-mode

This part is highly device specific, and depends on how the manufacturer of your device has chosen to implement the dev-mode switch.

A partial list of devices and how to enter them into dev-mode can be found here.

Flash ChromiumOS to Chromebook

Fire up your Chrombook device and hit Ctrl+Alt+Back, followed by 'chronos' and hit enter. Followed by the below command to install the ChromiumOS build that was just flashed.

/usr/sbin/chromeos-install

Debug an application

On Chromebook

Again fire up your Chrombook device and hit Ctrl+Alt+Back, followed by 'chronos' and hit enter.

# Remount the root drive read / write sudo mount -o remount,rw / # Open port so that gdbserver can be reached sudo /sbin/iptables -A INPUT -p tcp --dport 1234 -j ACCEPT # Run gdb server, listening on port 1234 (opened in iptables command above) sudo gdbserver :1234 chrome

On dev machine

# On x86 cros_sdk -- sudo USE=expat emerge cross-i686-pc-linux-gnu/gdb # On ARMv7 cros_sdk -- sudo USE=expat emerge cross-armv7a-cros-linux-gnueabi/gdb cros_sdk -- i686-pc-linux-gnu-gdb "/build/$BOARD/opt/google/chrome/chrome" (gdb) set sysroot /build/$BOARD/ (gdb) target remote IP_ADDR_CHROMEBOOK:1234 (gdb) continue

Conclusion

This is a bit of a rough outline, and is only suitable for Chromebook devices that already are in dev-mode.

原文地址： http://memcpy.io/setting-up-a-chromiumos-dev-environment.html