NayuOS is an ongoing project at Nexedi: since we mainly use Chromebooks as part of our development tools, we want to have more customizable, secure and privacy-compliant devices. We also love Free Softwares so we do want a Free alternative for Chrome OS that fits our needs.
Chromium OS is much more developer-friendly, since there is a large range of tools for development (Python2.7, gdb, ...) and networking (tcpdump, rsync, ...) that are not available in Chrome OS. Having Python2 means that it is easy to run an HTTP sever on the local network and develop web applications!
Chromium OS is fully Open Source. This is necessary for better privacy and security: you don't have to trust Google, you can look at the code and ensure that the software does what you expect from it! However, it requires you to switch to developer mode, which is by default less secure (no more boot verification, shell in the browser and VT2 access, available root access with no password, ssh daemon running, ...) but allows you to use your device without restriction.
Of course, you still have to be careful with the location of the storage of your personal data (file system, Google's servers or your own, ...).
NayuOS is a customization of Chromium OS that is going to be used at Nexedi and that we want to share since it can be useful to others.
We want to improve the development environment, the usability and configuration of the system and the privacy of the users. Right now, our technical goal is to:
sudo grandenetin the terminal, registry to get a token),
Be aware that, at least for now, NayuOS disables the verification usually checking the root file system at each boot.
The build process based on Buildout in our decentralized cloud technology SlapOS makes possible to build many images for Chromium OS and our modified version NayuOS for specific boards using the latest releases of Chromium OS.
|board code||machine name||release R47 (latest build for this release, but a bit old)||release R48 (latest build)|
|auron_yuna||Acer C910 Chromebook 15|
|clapper||Lenovo Chromebook N20|
|lulu||Dell Chromebook 13|
|peppy||Acer C720 Chromebook|
|quawks||ASUS Chromebooks C300|
|swanky||Toshiba Chromebook 2|
|samus||Chromebook Pixel 2015|
Old builds can be found in the images directory.
zcat your_board.nayuos.img.gz | sha512sum
The values should be the same.
Before doing anything, it is safer to make a recovery USB stick, just in case...
In order to install Chromium OS on you Chromebook, you will have to create a bootable USB stick. To do this, you can use:
ddcommand on any GNU/Linux (Chrome OS included) after having unmouted the partitions of the USB stick:
zcat your_board.nayuos.img.gz | sudo dd of=/dev/somedevice
gunzipthe downloaded file and run the UNetbootin graphical interface (but you may have some troubles).
Once you have your image, you need to activate the developer mode on your device:
generally, you have to turn your Chromebook off and hit
F3 (the "reload" key) +
You should then get a screen saying that "Chrome OS is missing or damaged",
this is just an dissuasive message, hit
and confirm by hitting
ENTER that you want to enable the developer
Then, you need to allow your device to boot on USB. For that, get a shell:
Tin the browser to access to the "crosh" terminal, and writing the command
F2(the "next" key), either as
sudo crossystem dev_boot_usb=1
Reboot and press
U at boot time to boot on
USB. You will be on a live Chromium OS system. If you want to install it
for real, open a terminal and type:
After that, don't try to turn the developer mode off (hitting
at boot time), or you will have to reinstall the original Chrome OS!
If it does not boot...
If you were in developer mode under Chrome OS, you may have to switch back to normal mode (hitting space at boot time). Then, you can follow the instructions above.
If you want to build the image yourself, you can find more informations on:
Some issues that may be fixed in the next versions.
gitfail. The reason is that
gitis looking for its files into
/usr/somethingbut they are located into the dev folder
/usr/local/something. Solution: use git with
--exec-path=/path/to/libexec/git-core/, for example:
git --exec-path=/usr/local/libexec/git-core/ clone https://lab.nexedi.com/isabelle/flaskdav.git
less, but the path is wrong also, run:
to set it correctly.
git config --global core.pager '/usr/local/bin/less'
npmis looking for node binary in
/etc/hosts(that is read-only) using the HOSTALIASES environment variable to have per-user customized IP/name conversions
re6st, to get IPv6 over an IPv4 network, is easy: follow instructions with the script
sudo chromeos-setdevpasswdto change
chronosuser's password so that password is asked when using sudo and passwordless
rootconsole login is disabled.
python -m zipfile -e myfile.zip outputpath