Public Node Sync

Introduction

This guide provides step-by-step instructions to perform a faster sync for Chain-maind using Public Node Sync snapshots. Please note that the type of snapshot provided is pruned.

Step 1: Download Public Node Snapshot

Users can visit Public Node Page and download the snapshots for Cronos POS Chain. Make sure to select “Cronos POS Chain” and download the lz4 file.

Step 2: Extract Public Node Snapshot

To start with Public Node Sync, run brew install lz4 in a new terminal.

Step 3: Chain-maind Setup

Download the latest version of Chain-maind binary from Cronos POS Chain Github based on your preferred operating system.

Extract the downloaded file (chain-main_4.2.9_Darwin_arm64.tar.gz is used as an example). After you download and unzip the chain-maind to the location you desire. In terminal, change directory to the bin folder, where chain-maind is located.

Follow the step from Step 2-1 Initialize and Step 2-2 Configure Chain-maind to initialize and setup chain-maind. The list of the seed is subject to change, you can also find the latest seed to connect here. Make sure edit the config.toml under /Users/<username>/.chain-maind/config/config.toml.

Perform Step 3.1 Run Everything, terminate the terminal once chainmaind is able to sync for couple of blocks.

Step 4: Extract Data from the Public Node Sync Snapshot

After you successfully start chain-maind, you should find a new folder named .chain-maind under /Users/<username>. Now add the cronos-pos-pruned-18968897-18968907.tar.lz4 inside .chain-maind. Change the path under .chain-maindand decompress with lz4 and tar by:

lz4 -d /Users/<username>/.chain-maind/ cronos-pos-pruned-18968897-18968907.tar.lz4.tar.lz4 | tar -xv

Note

All of the above files should be extracted to /Users/.chain-maind/data

Step 5: Run chain-maind

Now your chain-maind should be updated to the latest height as the Public Node Sync file, you can run the node now with ./chain-maind start.

That's it! You are now running a synced node on Cronos POS mainnet.