QEMU RoboRIO ARM Virtual Machine
This is a set of scripts that extracts the files for National Instruments Real Time Linux from the RoboRIO image zipfile, creates an image from them, and provides a script that allows you to run them via the QEMU emulator.
What can you use this for? Well, if you need to compile packages that are difficult to cross compile or build on a resource constrained system, or do testing that requires an ARM platform but does not require actual NI hardware.. this might be for you.
- Fedora 22/24, OSX (run only)
- QEMU 2.5.0, 2.6.1
- FRC images: 2016v18
- I tried 2015v23, but there's an error starting the NI configuration daemon and so ssh refuses to start.
It probably works on other Linux distributions, and may even work with OSX if you adjust the scripts to work there.
For creating an image:
- A linux host with the following installed:
- qemu-img, qemu-nbd
- root permissions
For running the created image:
- QEMU arm emulator (qemu-system-arm)
- Works on Linux and OSX
Creating the Virtual Machine root filesystem
First, you need the image zipfile that is distributed with the FRC Update Suite. On a machine with the RoboRIO imaging program installed, you can find it at:
C:\Program Files (x86)\National Instruments\LabVIEW 2015\project\roboRIO Tool\FRC Images
Copy the zipfile to your Linux host, and run the following:
Give it a few minutes, enter in your password when prompted, and at the end you should end up with an image file and a kernel file. This only needs to be done once.
Running the Virtual Machine
At the moment there are a lot of error messages, but eventually it will finish starting and you can login via the console or via SSH.
To SSH into your VM, you can execute the following:
ssh admin@localhost -p 10022
Or, you can setup an SSH alias by adding this to
Host roborio-vm User admin Hostname 127.0.0.1 Port 10022
Then you can login using the following:
QEMU has good support for snapshots and other such things. When the rootfs is created, an initial snapshot is created in case you want to revert the VM back to a 'pristine' state. To do so:
qemu-img snapshot -a initial roborio.img
There is now also a
reset.sh command that you can run to do this.
- I haven't figured out a good way to safely shutdown the system
- Probably should use a different filesystem for the image
- Lots of error messages on bootup, would be nice if we could use the actual kernel used on the RoboRIO (this seems like it should be possible)
Building QEMU from source
Download latest version of QEMU, and...
tar -xf qemu-2.6.1.tar.bz2 cd qemu-2.6.1 mkdir build cd build ../configure --target-list=arm-softmmu --enable-fdt make make install
Versions of QEMU that I've had work for me:
Versions known to not work:
Contributing new changes
This is intended to be a project that all members of the FIRST community can quickly and easily contribute to. If you find a bug, or have an idea that you think others can use:
- Fork this git repository to your github account
- Create your feature branch (
git checkout -b my-new-feature)
- Commit your changes (
git commit -am 'Add some feature')
- Push to the branch (
git push -u origin my-new-feature)
- Create new Pull Request on github
- Dustin Spicuzza (firstname.lastname@example.org)
These scripts are not endorsed or associated with Xilinx, FIRST Robotics, or National Instruments.