We need it to fetch the Chromium OS source code. The depot_tools is a software package of scripts, provided by Google, to manage source code checkouts and code reviews. Python 3 support is marked as experimental by these scripts, so use it at your own risk, feedback are welcome.įollow the usual way to install them on your host OS. Python 2.7 is required to run scripts from Google depot_tools package. Git and curl as the essential tools need to installed in the host OS. Prepare the system Install necessary tools For simplicity and convenience password-less sudo could be set for this user. The build process should be run by this user, not the root user. Linux versions that are known to work:Ī non-root user account with sudo access. However, only limited Linux distros are tested by the Chromium OS team and the Fyde team. So theoretically any modern Linux system should work. The Chromium OS build process utilizes chroot to isolate the build environment from the host OS. A fast and stable Internet access is going to be very helpful.Ī x86_64 Linux OS, it is called as the host OS later in this doc. Network: total source code downloading will be over 10GB. SSD could noticeably shorten the build time as there are many gigabytes of files need to be written to and read from the disk. Linking Chrome(the browser) could require more than 8GB of memory, so you will run into massive swapping or OOM if you have less memory.ĭisk: at least 100GB of free space, 200GB or more is recommended. Memory: we recommend at least 8GB, plus enough swap space. The Chromium OS build process runs in parallel so more cores can help shorten build time dramatically. The Chromium OS is a very large project, building from the source form scratch usually takes hours to over 10 or even 20 hours, depends on the system configuration.ĬPU: we recommend using a 4-core or higher processor. Shell commands running in the host OS are prefixed with the $ sign, like below.Ī x86_64 system to perform the build. We may provide scripts later to ease the process. To make as less change to the original Chromium OS code and process as possible, so that people can study and get used to the Chromium OS development process.To provide a open source code base that everybody can use to build and improve Chromium OS for Raspberry Pi.You are welcome to test it with future releases and send feedback and/or PRs. It has been tested against our current release version. master - this branch can be used to build a Chromium OS image with Freon as the graphics stack.Beginning from release 57, Chrome OS moved to the Freon graphics stack, which is a modern display system developed solely for Chrome OS by Google. There was a big change regarding the graphics stack in Chrome OS. We previously worked on this overlay internally and released a few disk images for Raspberry Pi to the public. The code and document in this repository is the result of works by the people of the Flint team. It doesn't work on any earlier version of the Raspberry Pi line-up. This overlay and the document has been tested against Raspberry Pi 3B & 3B+ by the FydeOS team. This document describes how to build and run Google Chromium OS on Raspberry Pi 3B & 3B+, from its source code and the board overlay hosted in this repository. Write the image by using the cros command.Setup bind mount directories for chroot.You can build packages with "cros_embedded" (or uncomment the USE flags in overlay-rpi3/nf) to produce a more efficient image.Note that although kernel patches for brcm are in place, there are still issues with wifi with this release. Add firmware support for Raspberry Pi 3B+.Fix poor graphic performance with full hardware accelecration enabled.The overlays are now updated to build Chromium OS r70.Fixed various build issues from previous release. Added missing firmware from latest official Raspbian release. Added optional SD card expansion script, courtesy of FydeOS.
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