# Celesita node on mobile devices

**Published by:** [GLCstaked](https://paragraph.com/@glcstaked/)
**Published on:** 2023-05-15
**URL:** https://paragraph.com/@glcstaked/celesita-node-on-mobile-devices

## Content

Celestia provides an efficient solution to the data availability problem by only requiring resource-limited light nodes to sample a small number of random chunks from each block to verify data availability. Interestingly, the more light nodes that participate in sampling, the more data that the network can safely handle. This enables the block size to increase without equally increasing the cost to verify the chain. Light nodes are part of celestia-node stack that handle data availability (as opposed to consensus - celestia-app). Because of the low resource requirements its possible to run this on lower spec devices that do not require constant connection to the internet (or high speed). This doc I am covering steps taken in order to get celestia-node installed on a variety of devices different from standard VPS build, this was during the `blockspacerace testnet. Celestia Node on Arch Linux Arch Linux is a lightweight and flexible Linux distribution that tries to Keep It Simple. It has a rolling release model, meaning you can keep your system updated with the latest software without needing to reinstall. There are mobile phone images available for Android and IOS phones here: Device- Steam Deck Deck comes installed with SteamOS which is based on Arch Linux, its a quite powerful handheld/portable gaming console, Arch Linux is growing in popularity among gaming with Linux. This was tested with a full storage node, though it makes much more sense for a light client, as something that is not intended to be run 24/7, however I wanted to make use of the specs (500GB NVMe) and test out if it could run it. Light client is part of celestia-node to run instead simply switch full > light where referenced in commands Installing on Arch Linux this distribution does not come with ‘apt repository’ for installing packages, instead pacman as the default package manager, Its highly recommended to use one package manager as mixing can lead to conflicts and broken dependencies. For Steam Deck only : Unlocking the Steam Deck: SYSTEM SETTINGS and select Enable Developer mode, then press A to toggle it on. This will expose a new Settings menu called "Developer" which contains settings specific to game developers and people who are interested in modding the Steam Deck. On Desktop mode the konsole should be visible, this is the terminal for SteamOS Add a Password: sudo commands will ask for a password, even if none is set enter passwd and set new password Default user is deck Disable Read Only Mode: sudo steamos-readonly disable echo "keyserver hkps://keyserver.ubuntu.com" | sudo tee -a /etc/pacman.d/gnupg/gpg.conf sudo pacman-key --init sudo pacman-key --populate sudo pacman-key --refresh-keys Notes: refresh keys will take a while to complete, as it is trying to refresh all the keys in the keyring. Might get a warning like: gpg: WARNING: running with faked system time: 2023-01-01 00:00:00 it's likely that the warning is related to the Steam Deck's setup, and it shouldn’t have any significant impact on system's functionality. Add ssh - optional sudo pacman -S openssh sudo systemctl enable sshd sudo systemctl start sshd # to change port sudo nano /etc/ssh/sshd_config #change port 22 sudo systemctl restart sshd Install and Enable ufw - optional sudo pacman -S ufw sudo systemctl enable ufw sudo systemctl start ufw sudo ufw allow <port> Installing celestia-node Install Dependencies sudo pacman -Syu curl tar wget clang pkgconf openssl jq base-devel git make ncdu NOTES: Differences from Ubuntu/Debian- libssl-dev is replaced with openssl, and pkg-config is replaced with pkgconf. Also, build-essential is replaced by base-devel. Installing go SteamDeck: .bashrc exists and seems to be used as default variable store, and comes with Go v0.19 installed and in the /usr/bin/ directory, as this is likely a dependency for other related packages to not break things its best to leave this. Celestia node requires v1.20, and we can install this binary in a separate location to be used for Celestia only. ver=1.20.2 wget <AMD URL HERE> sudo tar -C /usr/local -xzf “go$ver.linux-amd64.tar.gz” Add go to PATH here can see that normally v1.19 is used, but with go added to the PATH we can source .bash_profile for celestia applications and use this version only. Install celestia-node Same as the Normal Install, however may have issues with make on this OS cd $HOME rm -rf celestia-node git clone https://github.com/celestiaorg/celestia-node.git cd celestia-node/ git checkout tags/v0.9.4 #check version for which network make build sudo make install make cel-key Problems with make - Additional Packages there are additional packages, needed that may not come as standard on SteamOS (Arch Linux) or need to be reinstalled to `make build` sudo pacman -Sy isl sudo pacman -Sy libmpc sudo pacman -Sy gcc-libs glibc sudo pacman -Sy linux-api-headers sudo pacman -Sy make The warnings shown are because `pacman` could not find the expected files on your system before reinstalling the package. So long as we get to ‘make build’ with the expected output (shown above) everything is in order and packages should be installed correctly. Initialize celestia node type celestia full init --p2p.network blockspacerace for light client use light this test was on blockspacerace network, this should be changed to desired network Run the Node setup a system service to run the node, from this example: https://mirror.xyz/0xf3bF9DDbA413825E5DdF92D15b09C2AbD8d190dd/dIDJPGAkFeAdC98bojKn-4oHpRb5e7w0QAHTCKcsgRU Node Started and syncing Viewing logs directly on device, from brief testing all normal functions on the deck appear to work normally. Celestia node on Mobian Mobian is an open-source project aimed at bringing Debian GNU/Linux to mobile devices, such as smartphones and tablets. The project's goal is to provide a Debian-based fully-featured desktop environment that is optimized for touch input while using the mainline Linux kernel. Mobian, primarily supporting PinePhone and Librem 5, is a developing Linux-based mobile OS. Though not as polished or feature-rich as mainstream OS like Android or iOS, it's actively updated and improving (see releases). The process should be similar for any compatible OS and device. I am using PinePhone an Open Source phone supporting existing Linux-on-phone projects. This has only 3GB RAM and an internal flash memory of 32GB eMMC, CPU: 64-bit Quad-core 1.2 GHz ARM Cortex A-53. Device: Pinephone Main Specs: 4 x ARM Cortex A53 cores @ 1.152 GHz ARM Mali 400 MP2 GPU 2GB / 3GB LPDDR3 RAM 5.95″ LCD 1440×720, 18:9 aspect ratio (hardened glass) Bootable Micro SD Storage: 16GB / 32GB eMMC Installing Mobian on Pinephone for more detail on setup/installation see here as an example on mocha testnet https://mirror.xyz/0xf3bF9DDbA413825E5DdF92D15b09C2AbD8d190dd/4UHV59sD23M2yeuLk17ukvJUzmgNo1pcnqQEcKsIkvM Installing celestia-node for installing a celesita light client (which is celestia-node initiated as light client) follow the ‘Celestia Light Node for ARM Devices setup’ section below. As Mobian is Debian based, pretty much all install commands should work the same as the normal install, however the CPU is ARM based ‘4 x ARM Cortex A53 cores @ 1.152 GHz’ therefore a version of Go compatible with ARM is required to build Celestia. Celestia node on SBCs- Raspberry Pi Though not exactly mobile, single board computers (SBCs) are an ideal device for locally running light clients, due to low power consumption and small profile. Ubuntu OS image for Raspberry Pi Install Ubuntu on a Raspberry Pi | Ubuntu Ubuntu is an open-source operating system for cross-platform development, there's no better place to get started than with Ubuntu on a Raspberry Pi https://ubuntu.com for more detail on setup/installation see here full steps to install a light client on Rpi: https://mirror.xyz/0xf3bF9DDbA413825E5DdF92D15b09C2AbD8d190dd/1IneKgzcoy7L-uTuSYzWPMkWo45jaBxX7XdryaiG3hk Installing celestia-node As you can see from the Specs, there is an ARM based CPU for installing a celesita light client (which is celestia-node initiated as light client) follow the ‘Celestia Light Node for ARM Devices setup’ section below. Light node setup for ARM devices For any ARM based device using Debian (mobian) / or Ubuntu OS: the following install script can be used from here: celestia-node-scripts/multi-network at main · GLCNI/celestia-node-scripts deployment scripts for celestia nodes. Contribute to GLCNI/celestia-node-scripts development by creating an account on GitHub. https://github.com Install with script wget https://raw.githubusercontent.com/GLCNI/celestia-node-scripts/main/multi-network/light-node-ARM.sh && chmod a+x light-node-ARM.sh ./light-node-ARM.sh Manual Steps Install dependencies sudo apt update sudo apt install curl tar wget clang pkg-config libssl-dev jq build-essential bsdmainutils git make ncdu -y NOTE: advised to update via the built in software updater, as running ‘apt update’ may break things related to the device with compatibility issues (on pinephone the UI was basically unusable after this) Install Go (for ARM) ver="1.20.3" cd $HOME wget "https://golang.org/dl/go$ver.linux-arm64.tar.gz" sudo rm -rf /usr/local/go sudo tar -C /usr/local -xzf "go$ver.linux-arm64.tar.gz" rm "go$ver.linux-arm64.tar.gz" # add to PATH echo 'export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin' >> $HOME/.bash_profile source $HOME/.bash_profile Install Celestia node git clone https://github.com/celestiaorg/celestia-node.git cd celestia-node git checkout tags <version> make build sudo make install make cel-key Initiate as light node celestia light init --p2p.network <network> Setup service sudo 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 <gRPC endpoint> Restart=on-failure RestartSec=3 LimitNOFILE=4096 [Install] WantedBy=multi-user.target" EOF

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