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This content follows the TrueNAS SCALE 23.10 (Cobia) releases. Use the Product and Version selectors above to view content specific to different TrueNAS software or major version.
Chia
3 minute read.
Last Modified 2024-03-19 08:38 EDTThis Community App article provides installation instructions using the legacy TrueNAS SCALE Applications screen. SCALE 23.10 (Cobia) introduces new Installed and Discover screens for applications. See Apps and Applications Screens to learn how to install applications using these screens.
Community applications are created and maintained by members of the TrueNAS community. Similarly, community members actively maintain application articles in this section. Click Edit Page in the top right corner to propose changes to this article.
SCALE includes Chia in its Official Apps catalog. Chia Blockchain is a new cryptocurrency that uses Proof of Space and Time. Instead of using expensive hardware that consumes exorbitant amounts of electricity to mine cryptos, it leverages existing empty hard disk space on your computer(s) to farm cryptos with minimal resources, such as electricity.
Click on the Chia app Install button in the Available Applications list.
Name your App and click Next. In this example, the name is chia1.
Leave Enable Custom Host Path for Chia Configuration Volume and Enable Custom Host Path for Chia Plots Volume unchecked and click Next.
Click Next in the Chia Environment Variables screen. You add one later.
Confirm the options and click Submit.
Continue through the wizard and create the new application. After a minute or two the new Chia container starts and shows ACTIVE status. Click the three-dot menu on the top-right and launch the Shell.
Leave the defaults for the pod (there is only one) and use the selected /bin/bash shell.
The first time Chia launches, it automatically creates a new private key set (for plotting purposes) and wallet. However, the private key set is not preserved across container restarts. To make sure your keys and wallet persist, save the Mnemonic Seed that was created and make sure it gets used at each container initialization. To do this, start by displaying the current key information by running the following shell command:
/chia-blockchain/venv/bin/chia keys show --show-mnemonic-seed
We suggest you make a backup copy of the information provided here for your reference in case you lose the keyfile. To make sure the same key is used for this container going forward, you save the mnemonic-seed phrase to one of your host volumes on TrueNAS.
Copy and paste the 24 secret words of the mnemonic seed into a new shell command:
echo "my unique 24 secret words here" > /plots/keyfile
Now exit the shell and go back to the Installed Apps page. Click Edit on your Chia container.
Scroll down until you find the Container Environment Variables section and add a new variable as shown below:
- Environment Variable Name: keys
- Environment Variable Value: /plots/keyfile
If you entered the command correctly, you should see some output that looks like the screenshot.
Save the change, and the chia container should restart automatically. To confirm your changes have persisted you can log into the containers shell again and run the same /chia-blockchain/venv/bin/chia keys show --show-mnemonic-seed command to show your keys. If the keys are identical to what you previously recorded, then you are done! This Chia container persists across reboots, upgrades, and re-deployments.
At this point, you are ready to begin farming Chia. This is a CLI process and beyond the scope of this quick how-to, but we recommend you start by reading up on their CLI reference materials, Quick Start guide and other documentation.