# Celestia Light Node Raspberry Pi - Mocha

**Published by:** [GLCstaked](https://paragraph.com/@glcstaked/)
**Published on:** 2023-01-09
**URL:** https://paragraph.com/@glcstaked/celestia-light-node-raspberry-pi-mocha

## Content

Setup a Celestia Light Client on ARM based single board computer such as Raspberry Pi/Rock SBCs, this example using a Raspberry Pi4-B Light Nodes conduct data availability sampling on the Celestia Data Availability network. More info on Light nodes found here. Raspberry Pi is the most popular single board computer, uses ARM based CPU and the steps for installation are the same for any ARM device including mobile here. A setup script, for easier install is available here:GitHub - GLCNI/celestia-node-scripts: deployment scripts for celestia nodesdeployment scripts for celestia nodes. Contribute to GLCNI/celestia-node-scripts development by creating an account on GitHub.https://github.comHardware – using a Raspberry Pi 4 Model B with 4GB RAM, Storage 32GB mSD Card OS: Ubuntu desktop 22.04.1 LTS1. Getting Ubuntu on Raspberry PiDownload R-Pi Imager https://www.raspberrypi.com/software/ You can install this on Windows or OS of choice, you need something to flash the OS image of Ubuntu to the SBC board, in this case a Raspberry pi 4. This is software to flash the OS image to bootable storage for the SBC. Download Ubuntu OS image Ubuntu for ARM can be found here.Install Ubuntu on a Raspberry Pi | UbuntuUbuntu is an open-source operating system for cross-platform development, there's no better place to get started than with Ubuntu on a Raspberry Pihttps://ubuntu.comEasiest to work with is the Ubuntu Desktop image. You can find on this page suitable OS version for which version of SBC, in this case ‘Ubuntu Desktop 22.04.1 LTS 64bit’ for 20.04 LTS you can install a server version for R-Pi here. ‘Raspberry Pi Generic (64-bit ARM) preinstalled server image’. UI can be installed via terminal sudo apt-get install ubuntu-desktop Format Storage Using an SD card as this is where the R-Pi will boot from first (by default), first format the card before it can be flashed with the image installed previous, can use the disk management tool on windows.Flash SD with Ubuntu Using the Raspberry Pi Imager tool, Select ‘use custom image’ for the operating system we previously downloaded (Ubuntu 22.04.1), then select the storage (ensure formatted and connected), click on write to start the process, can take a while to complete.Setup Ubuntu on Device (R-pi) On first start-up it’s the same for setting up ubuntu anywhere else, follow the on-screen prompts, this only needs to be done once. Once logged in connect to the internet and update the device via the ‘software updater’.Setup Celestia Light node via Script - EasyEasier way to install Light client is via the script below and downloading for ARM devices, this just automates the steps from this document. Or to do manually follow from Step 2.GitHub - GLCNI/celestia-node-scripts: deployment scripts for celestia nodesdeployment scripts for celestia nodes. Contribute to GLCNI/celestia-node-scripts development by creating an account on GitHub.https://github.comThis must be done as root user sudo -iwget https://raw.githubusercontent.com/GLCNI/celestia-node-scripts/main/light-node-ARM/cel-light-arm.sh make executable and run scriptchmod a+x cel-light-arm.sh ./cel-light-arm.sh 2. Install DependenciesChange to root usersudo -i Can exit root anytime with exit Install packagessudo apt update sudo apt install curl tar wget clang pkg-config libssl-dev jq build-essential bsdmainutils git make ncdu -y Install Gocd /tmp && wget https://go.dev/dl/go1.19.1.linux-arm64.tar.gz tar -C /usr/local/ -xzf go1.19.1.linux-arm64.tar.gz add go to PATHcd /usr/local/ && echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> ~/.bashrc && echo "export GOROOT=/usr/local/go" >> ~/.bashrc && echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> /home//.bashrc && echo "export GOROOT=/usr/local/go" >> /home//.bashrc && source ~/.bashrc && source /home/*/.bashrc confirm go installedgo version 3. Install Celestia nodecd $HOME rm -rf celestia-node git clone https://github.com/celestiaorg/celestia-node.git cd celestia-node/ git checkout tags/v0.6.0 make install make cel-key Initiate node as a light clientcelestia light init 4. Create system service to run light nodeRequires gRPC endpoint to connect to a validator node, replace the $RPC_ENDPOINT with : available endpoint from here:tee <<EOF >/dev/null /etc/systemd/system/celestia-lightd.service [Unit] Description=celestia-lightd Light Node After=network-online.target [Service] User=root ExecStart=/usr/local/bin/celestia light start --core.ip $RPC_ENDPOINT Restart=on-failure RestartSec=3 LimitNOFILE=4096 [Install] WantedBy=multi-user.target" EOF Enable and start servicesystemctl enable celestia-lightd systemctl daemon-reload systemctl start celestia-lightd Logs can be viewed withjournalctl -u celestia-lightd.service -f The service can be stopped withsystemctl stop celestia-lightd 5. Wallet SetupA wallet is created for you on start up, to pay for data transactions this must be funded, you can find wallet with (in ./celestia-node)cd celestia-node ./cel-key list --node.type light --keyring-backend test

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