Installation

Chain ID	Latest Version Tag	Custom Port
lava-testnet-2	v4.2.0	144

Setup validator name

Replace YOUR_MONIKER_GOES_HERE with your validator name

MONIKER="YOUR_MONIKER_GOES_HERE"

Install dependencies

UPDATE SYSTEM AND INSTALL BUILD TOOLS

sudo apt -q update
sudo apt -qy install curl git jq lz4 build-essential
sudo apt -qy upgrade

INSTALL GO

sudo rm -rf /usr/local/go
curl -Ls https://go.dev/dl/go1.23.4.linux-amd64.tar.gz | sudo tar -xzf - -C /usr/local
eval $(echo 'export PATH=$PATH:/usr/local/go/bin' | sudo tee /etc/profile.d/golang.sh)
eval $(echo 'export PATH=$PATH:$HOME/go/bin' | tee -a $HOME/.profile)

Download and build binaries

# Clone project repository
cd $HOME
rm -rf lava
git clone https://github.com/lavanet/lava.git
cd lava
git checkout v4.2.0

# Build binaries
export LAVA_BINARY=lavad
make build

# Prepare binaries for Cosmovisor
mkdir -p $HOME/.lava/cosmovisor/genesis/bin
mv build/lavad $HOME/.lava/cosmovisor/genesis/bin/
rm -rf build

# Create application symlinks
sudo ln -s $HOME/.lava/cosmovisor/genesis $HOME/.lava/cosmovisor/current -f
sudo ln -s $HOME/.lava/cosmovisor/current/bin/lavad /usr/local/bin/lavad -f

Install Cosmovisor and create a service

# Download and install Cosmovisor
go install cosmossdk.io/tools/cosmovisor/cmd/[email protected]

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

[Service]
User=$USER
ExecStart=$(which cosmovisor) run start
Restart=on-failure
RestartSec=10
LimitNOFILE=65535
Environment="DAEMON_HOME=$HOME/.lava"
Environment="DAEMON_NAME=lavad"
Environment="UNSAFE_SKIP_BACKUP=true"

[Install]
WantedBy=multi-user.target
EOF
sudo systemctl daemon-reload
sudo systemctl enable lava.service

Initialize the node

# Set node configuration
lavad config chain-id lava-testnet-2
lavad config keyring-backend test
lavad config node tcp://localhost:14457

# Initialize the node
lavad init $MONIKER --chain-id lava-testnet-2

# Download genesis and addrbook
curl -Ls https://snapshots.kjnodes.com/lava-testnet/genesis.json > $HOME/.lava/config/genesis.json
curl -Ls https://snapshots.kjnodes.com/lava-testnet/addrbook.json > $HOME/.lava/config/addrbook.json

# Add seeds
sed -i -e "s|^seeds *=.*|seeds = \"[e-mail]:14459\"|" $HOME/.lava/config/config.toml

# Set minimum gas price
sed -i -e "s|^minimum-gas-prices *=.*|minimum-gas-prices = \"0ulava\"|" $HOME/.lava/config/app.toml

# Set pruning
sed -i \
  -e 's|^pruning *=.*|pruning = "custom"|' \
  -e 's|^pruning-keep-recent *=.*|pruning-keep-recent = "100"|' \
  -e 's|^pruning-keep-every *=.*|pruning-keep-every = "0"|' \
  -e 's|^pruning-interval *=.*|pruning-interval = "19"|' \
  $HOME/.lava/config/app.toml

# Set custom ports
sed -i -e "s%^proxy_app = \"tcp://127.0.0.1:26658\"%proxy_app = \"tcp://127.0.0.1:14458\"%; s%^laddr = \"tcp://127.0.0.1:26657\"%laddr = \"tcp://127.0.0.1:14457\"%; s%^pprof_laddr = \"localhost:6060\"%pprof_laddr = \"localhost:14460\"%; s%^laddr = \"tcp://0.0.0.0:26656\"%laddr = \"tcp://0.0.0.0:14456\"%; s%^prometheus_listen_addr = \":26660\"%prometheus_listen_addr = \":14466\"%" $HOME/.lava/config/config.toml
sed -i -e "s%^address = \"tcp://0.0.0.0:1317\"%address = \"tcp://0.0.0.0:14417\"%; s%^address = \":8080\"%address = \":14480\"%; s%^address = \"0.0.0.0:9090\"%address = \"0.0.0.0:14490\"%; s%^address = \"0.0.0.0:9091\"%address = \"0.0.0.0:14491\"%; s%:8545%:14445%; s%:8546%:14446%; s%:6065%:14465%" $HOME/.lava/config/app.toml

# Update chain-specific configuration
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

Download latest chain snapshot

curl -L https://snapshots.kjnodes.com/lava-testnet/snapshot_latest.tar.lz4 | tar -Ilz4 -xf - -C $HOME/.lava
[[ -f $HOME/.lava/data/upgrade-info.json ]] && cp $HOME/.lava/data/upgrade-info.json $HOME/.lava/cosmovisor/genesis/upgrade-info.json

Start service and check the logs

sudo systemctl start lava.service && sudo journalctl -u lava.service -f --no-hostname -o cat