# Syncing from genesis

This document is a how-to-guide on joining the FirmaChain network using ‘Syncing from genesis’.

### List of networks provided

Please check the genesis file, the seed and the github link according to the network you are planning to join.

<table data-header-hidden><thead><tr><th width="131"></th><th width="157"></th><th width="149"></th><th width="144"></th><th></th></tr></thead><tbody><tr><td><strong>Network</strong></td><td><strong>chain-id</strong></td><td><strong>genesis.json</strong></td><td><strong>seeds</strong></td><td><strong>github</strong></td></tr><tr><td>Mainnet</td><td>colosseum-1</td><td><a href="https://github.com/FirmaChain/mainnet/blob/main/colosseum-1/genesis.json">Link</a></td><td><a href="https://github.com/firmachain/mainnet#seed-nodes">Link</a></td><td><a href="https://github.com/firmachain/mainnet">Link</a></td></tr><tr><td>Testnet</td><td>imperium-4</td><td><a href="https://github.com/FirmaChain/testnet/blob/master/imperium-4/genesis.json">Link</a></td><td><a href="https://github.com/FirmaChain/testnet/tree/master/imperium-4#seed-node">Link</a></td><td><a href="https://github.com/FirmaChain/testnet/tree/master/imperium-4">Link</a></td></tr></tbody></table>

### Initialize the firmachain

Initialize the node and designate the moniker name.

```bash
firmachaind init <moniker-name> --chain-id <chain-id>
```

### Rename the moniker

Before activating the chain, you can modify the name of the node from the moniker field at \~/.firmachain/config/config.toml.

```bash
vim .firmachain/config/config.toml

# A custom human readable name for this node
moniker = "<moniker-name>"
```

### Setup minimum gas prices

Modify minimum gas fee.

```bash
sed -i -E 's/minimum-gas-prices = ".*"/minimum-gas-prices = "0.01ufct"/' ~/.firmachain/config/app.toml
```

### Set seeds

FirmaChain discloses information on seed nodes for the purpose of P2P connection.

```bash
# Mainnet
sed -i.bak -e "s/^seeds *=.*/seeds = \"f89dcc15241e30323ae6f491011779d53f9a5487@mainnet-seed1.firmachain.dev:26656,04cce0da4cf5ceb5ffc04d158faddfc5dc419154@mainnet-seed2.firmachain.dev:26656,940977bdc070422b3a62e4985f2fe79b7ee737f7@mainnet-seed3.firmachain.dev:26656\"/" ~/.firmachain/config/config.toml
```

```bash
# Testnet
sed -i.bak -e "s/^seeds *=.*/seeds = \"ddeaeb19dbe29558ac3f8569f99c0906adf7d8cf@testnet-seed1.firmachain.dev:26656,a195e07dad206431293ab141434331a8373221ab@testnet-seed2.firmachain.dev:26656\"/" ~/.firmachain/config/config.toml
```

### Download genesis.json file

After downloading the genesis.json file of the network you are planning to join, please swap the file with \~/.firmachain/config/genesis.json.

```bash
# Mainnet genesis.json
wget https://raw.githubusercontent.com/FirmaChain/mainnet/main/colosseum-1/genesis.json -O ~/.firmachain/config/genesis.json
```

```bash
# Testnet genesis.json
wget https://raw.githubusercontent.com/FirmaChain/testnet/master/imperium-4/genesis.json -O ~/.firmachain/config/genesis.json
```

### Syncing node

Finally, you can start the syncing process

```bash
firmachaind start
```

If the genesis sync halts showing the error message below, please upgrade the chain binary.

```bash
ERR UPGRADE "v0.3.5" NEEDED at height: 4806000:
panic: UPGRADE "v0.3.5" NEEDED at height: 4806000:
```

Please click on [the link](/master/node-and-validators-guide/run-a-full-node/upgrade-your-node.md) below for the upgrade guide.

### Option

You can start firmachain using Cosmovisor or System Daemon.

* [How to set Cosmovisor](/master/node-and-validators-guide/run-a-full-node/run-a-cosmovisor.md)
* [How to set System Demon](/master/node-and-validators-guide/run-a-full-node/run-a-system-deamon.md)


---

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