Operating system and firmware image for the 2nd generation Outernet receivers
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Latest commit 92753e2 Sep 23, 2016 @foxbunny foxbunny Final release version
Signed-off-by: Branko Vukelic <branko@outernet.is>



rxOS is the operating system and firmware image for the second generation Outernet receivers (Lantern and Lighthouse Mk 2).

rxOS is built on top of Buildroot <http://buildroot.org/> and constists of two parts:

  • Linux kernel image with early userspace
  • rootfs image

Full documentation is available in the docs subdirectory.

The code is released under GPLv3 license. See the COPYING file in the source tree or visit http://www.gnu.org/licenses/.

Required software

In order to build the rxOS firmware, you will need a Linux (virtual) machine.

For virtual machines, hardware virtualization (Hyper-V, etc) is highly recommended, as well as as much RAM as you can spare.

You will need to have the following packages installed:

  • Build tools (packages like build-essential, base-devel, and similar)
  • bc
  • git
  • rsync
  • unzip
  • cpio
  • wget
  • mercurial (hg)

Quick start

Before you start, you need to clone the rxOS git repository:

$ git clone --recursive https://github.com/Outernet-Project/rxOS.git

The --recursive flag causes git to init and update any submodules. If you forgot it, you need two additional steps:

$ git submodule init
$ git submodule update

Now you can cd into the repository and start building:

$ cd rxOS
$ make menuconfig  # only if you want to customize something
$ make

Updating the existing build

To update your local repository clone:

$ cd path/to/rxOS
$ git pull
$ git submodule update

Apply possibly updated build configuration:

$ make config

Rebuild starting from the linux kernel:

$ make rebuild-with-linux

User makefiles

Any makefiles in the root of the source directory that are named user*.mk will be included in the build, after all local and build packages, and support makefiles are executed. This makefiles can be used for temporary overrides and slight build adjustments.

Do not abuse user makefiles! The more personal you make the build, the smaller the chance someone will be able to help you with it.

Example user makefiles are provided in the user directory. These makefiles are actually used in production so consider them 'working examples'. They can be symlinked to the source root.


rxOS is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. See COPYING file in the source tree. If not, see http://www.gnu.org/licenses/.