# Node Installation

## [EXPLORER](https://explorer.stavr.tech/Lava-Mainnet)

* **Approximate hardware requirements**:

| Node Type | CPU | RAM  | Storage |
| --------- | --- | ---- | ------- |
| Mainnet   | 8   | 16GB | 250GB   |

## 1) Auto\_install script

```bash
source <(curl -s https://raw.githubusercontent.com/111STAVR111/props/refs/heads/main/Lava/Mainnet/lavam)
```

## 2) Manual installation

#### Preparing the server

```bash
sudo apt update && sudo apt upgrade -y
sudo apt install curl tar wget clang pkg-config libssl-dev jq build-essential bsdmainutils git make ncdu gcc git jq chrony liblz4-tool -y
```

### GO 1.21.6

```bash
ver="1.21.6"
wget "https://golang.org/dl/go$ver.linux-amd64.tar.gz"
sudo rm -rf /usr/local/go
sudo tar -C /usr/local -xzf "go$ver.linux-amd64.tar.gz"
rm "go$ver.linux-amd64.tar.gz"
echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> $HOME/.bash_profile
source $HOME/.bash_profile
go version
```

## Build 27.04.25

```bash
cd $HOME && mkdir $HOME/go/bin/
git clone https://github.com/lavanet/lava/
cd lava
git checkout v5.3.0
make install-all
```

`lavad version --long | grep -e commit -e version`

* version: 5.3.0
* commit: 526a5388b70fad20f42aac4d72495299c74c032c

## Initiation

```python
lavad init STAVR_guide --chain-id=lava-mainnet-1
lavad config chain-id lava-mainnet-1
```

### Create/recover wallet

```bash
lavad keys add <walletname>
           OR
lavad keys add <walletname> --recover
```

### Download Genesis

```d
wget -L -O $HOME/.lava/config/genesis.json https://server-1.stavr.tech/Mainnet/Lava/genesis.json
```

`sha256sum $HOME/.lava/config/genesis.json`

* 5ba7dc9ac4ee0ea1776c8f13dc45be84ffc2ef3ffbe8271e30b573134ecd61ea

### Set up the minimum gas price and Peers/Seeds/Filter peers/MaxPeers

```bash
sed -i -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0.000000001ulava\"/" $HOME/.lava/config/app.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.lava/config/config.toml
peers=""
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.lava/config/config.toml
sed -i \
  -e 's/timeout_commit = ".*"/timeout_commit = "30s"/g' \
  -e 's/timeout_propose = ".*"/timeout_propose = "1s"/g' \
  -e 's/timeout_precommit = ".*"/timeout_precommit = "1s"/g' \
  -e 's/timeout_precommit_delta = ".*"/timeout_precommit_delta = "500ms"/g' \
  -e 's/timeout_prevote = ".*"/timeout_prevote = "1s"/g' \
  -e 's/timeout_prevote_delta = ".*"/timeout_prevote_delta = "500ms"/g' \
  -e 's/timeout_propose_delta = ".*"/timeout_propose_delta = "500ms"/g' \
  -e 's/skip_timeout_commit = ".*"/skip_timeout_commit = false/g' \
  $HOME/.lava/config/config.toml
```

#### Pruning (optional)

```bash
pruning="custom"
pruning_keep_recent="10000"
pruning_keep_every="0"
pruning_interval="1000"
sed -i -e "s/^pruning *=.*/pruning = \"$pruning\"/" $HOME/.lava/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.lava/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.lava/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.lava/config/app.toml
```

#### Indexer (optional)

```bash
indexer="null" &&
sed -i -e "s/^indexer *=.*/indexer = \"$indexer\"/" $HOME/.lava/config/config.toml
```

### Download addrbook

```d
wget -O $HOME/.lava/config/addrbook.json "https://server-1.stavr.tech/Mainnet/Lava/addrbook.json"
```

## Create a service file

```bash
sudo tee /etc/systemd/system/lavad.service > /dev/null <<EOF
[Unit]
Description=lava
After=network-online.target

[Service]
User=$USER
ExecStart=$(which lavad) start
Restart=on-failure
RestartSec=3
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target
EOF
```

## StateSync Lava Mainnet

```bash
systemctl stop lavad
SNAP_RPC=https://lava.rpc.m.stavr.tech:443
LATEST_HEIGHT=$(curl -s $SNAP_RPC/block | jq -r .result.block.header.height); \
BLOCK_HEIGHT=$((LATEST_HEIGHT - 1000)); \
TRUST_HASH=$(curl -s "$SNAP_RPC/block?height=$BLOCK_HEIGHT" | jq -r .result.block_id.hash)

echo $LATEST_HEIGHT $BLOCK_HEIGHT $TRUST_HASH

sed -i.bak -E "s|^(enable[[:space:]]+=[[:space:]]+).*$|\1true| ; \
s|^(rpc_servers[[:space:]]+=[[:space:]]+).*$|\1\"$SNAP_RPC,$SNAP_RPC\"| ; \
s|^(trust_height[[:space:]]+=[[:space:]]+).*$|\1$BLOCK_HEIGHT| ; \
s|^(trust_hash[[:space:]]+=[[:space:]]+).*$|\1\"$TRUST_HASH\"| ; \
s|^(seeds[[:space:]]+=[[:space:]]+).*$|\1\"\"|" $HOME/.lava/config/config.toml
lavad tendermint unsafe-reset-all --home /root/.lava
wget -O $HOME/.lava/config/addrbook.json "https://server-1.stavr.tech/Mainnet/Lava/addrbook.json"
sudo systemctl restart lavad && journalctl -fu lavad -o cat
```

## SnapShot Mainnet updated every 30 hours

{% hint style="success" %}
<https://server-1.stavr.tech/Mainnet/Lava/>
{% endhint %}

```bash
cd $HOME
apt install lz4
sudo systemctl stop lavad
cp $HOME/.lava/data/priv_validator_state.json $HOME/.lava/priv_validator_state.json.backup
rm -rf $HOME/.lava/data
LATEST_SNAPSHOT=$(curl -s https://server-1.stavr.tech/Mainnet/Lava/ | grep -oE 'lava-snap-[0-9]+\.tar\.lz4' | while read SNAPSHOT; do HEIGHT=$(curl -s "https://server-1.stavr.tech/Mainnet/Lava/${SNAPSHOT%.tar.lz4}-info.txt" | awk '/Block height:/ {print $3}'); echo "$SNAPSHOT $HEIGHT"; done | sort -k2 -nr | head -n 1 | awk '{print $1}')
curl -o - -L https://server-1.stavr.tech/Mainnet/Lava/$LATEST_SNAPSHOT | lz4 -c -d - | tar -x -C $HOME/.lava
mv $HOME/.lava/priv_validator_state.json.backup $HOME/.lava/data/priv_validator_state.json
wget -O $HOME/.lava/config/addrbook.json "https://server-1.stavr.tech/Mainnet/Lava/addrbook.json"
sudo systemctl restart lavad && journalctl -fu lavad -o cat
```

### Start

```bash
sudo systemctl daemon-reload
sudo systemctl enable lavad 
sudo systemctl restart lavad && sudo journalctl -fu lavad  -o cat
```

#### Create validator

```python
lavad tx staking create-validator \
  --amount 1000000ulava \
  --from <walletName> \
  --commission-max-change-rate "0.1" \
  --commission-max-rate "0.2" \
  --commission-rate "0.1" \
  --min-self-delegation "1" \
  --pubkey  $(lavad tendermint show-validator) \
  --moniker STAVR_guide \
  --chain-id lava-mainnet-1 \
  --identity="" \
  --details="" \
  --website="" -y
```

## [🧩Services and Tools🧩](https://stavr-team.gitbook.io/nodes-guides/mainnets/lava/statesync-snapshot)

## Monitoring

You can set up your node status alarm here - [Monitoring](https://stavr-team.gitbook.io/nodes-guides/monitoring)

## Security

You can create secure management of your wallet and your node by following this links.

[TMKMS](https://stavr-team.gitbook.io/nodes-guides/tmkms)               [Wallet Security](https://stavr-team.gitbook.io/nodes-guides/wallet-security)

### Delete node

```bash
sudo systemctl stop lavad
sudo systemctl disable lavad
rm /etc/systemd/system/lavad.service
sudo systemctl daemon-reload
cd $HOME
rm -rf lava
rm -rf .lava
rm -rf $(which lavad)
```


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