Zynthian Software

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Official Aruk Stretch SD-Images (Stretch-based)

The current official Zynthian SD-Image is called Aruk. It's based in Raspbian Stretch and built using a the CustomPiOS system (thanks @guysoft!!). Currently we have a third Release Candidate (RC-3):

ZynthianOS "Aruk Stretch" RC-3 (MD5-sum)

it will be the last stretch-based Aruk RC because we have moved to Raspbian Buster.


Aruk Stretch SD-Image is pre-configured for official Kit v2.

Testing Aruk Buster SD-Images (Buster-based)

The next official Zynthian SD-Image is called Aruk Buster. It's the same than the stretch-based one, but buster-based. Currently we have a first Release Candidate (RC-1):

ZynthianOS "Aruk Buster" RC-1 (MD5-sum)

Nightly Build SD-Images

If you really like to be in the cutting edge, try the nightly builds:

ZynthianOS nightly builds

but if you do so, please, check that the build is green in the Jenkins panel.


There are no torrents for Aruk SD-images yet. When the final release is out, we will prepare the torrent files for faster and more reliable downloading.

Legacy "Gorgona Omega" SD-Images (Jessie-based)


Gorgona Omega is at the very end of its life cycle and it's not longer maintained nor fixed. If you use it, probably you will have problems for updating. I strongly suggest using the new Aruk SD-image (see above).

You can download the old Gorgona SD-Images from here:

Download Zynthian "Gorgona Omega" SD-image, configured for Kits v2
SHA1: 601ab5e58d3f08b7cda6f5821d396f6622e93106
Download Zynthian "Gorgona Omega" SD-image, configured for Kits v1
SHA1: 53ce2ba3c055698d27108750c2b80313f904c921

In case you have troubles using Torrent, you can download the Gorgona Omega image from these links:

Please, try first with torrent and don't use these "direct download" links unless you really need it:

  • Zynthian server have limits and if everybody is trying to download the SD images directly from there, it will get overloaded and forum, wiki and other Zynthian services will be slower.
  • Torrent should download faster than direct download links because you are downloading from several sources at once.

Preparing the SD-card

Current images are 8GB compressed image file compiled for Raspberry Pi 3. These SD card images include all the Zynthian software, properly configured for working with the official kits. Completely ready to use. Plug and play!

After downloading the SD-image, you have to write it to a SDcard. You need a SD card with a minimum size of 16GB, although you can use a bigger one if you want.

Use Etcher (free software works on Mac, Windows or Linux) to write the image onto the SDcard. Or do it manually! There is a really good manual for this at this link.


RBPi2 is not currently supported by the latest official zynthian SD images, so if you want to use a RBPi2, you may need to build your own SD image.

Build your own image

If you like, you can build your own SD image following these instructions:

Building the SD Image using the Setup Script

Also, you would like to try the new experimental docker-builder (thanks @guysoft!!):

Building Zynthian with Docker