Installation

Nolus Mainnet guide

Hardware Requirements:

Node Type	CPU	RAM	Storage
Mainnet	4+ vCPU	16+ GB RAM	240+ GB SSD

Preparing the server

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

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

cd $HOME && mkdir $HOME/go/bin/
cd $HOME
wget -O lavad https://github.com/lavanet/lava/releases/download/v4.0.0/lavad-v4.0.0-linux-amd64
chmod +x lavad
mv lavad $HOME/go/bin/lavad

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

• version: 4.0.0

• commit: 1962ab0381ddd80048d400d8d83a5460781cf577

lavad init --chain-id=lava-testnet-2
lavad config chain-id lava-testnet-2

Create/recover wallet

lavad keys add <walletname>
lavad keys add <walletname> --recover

Download Genesis and addrbook

curl -s "https://github.com/Shoni-O/files/blob/main/testnet-files/lava/genesis.json" > $HOME/.lava/config/genesis.json
wget -O $HOME/.lava/config/addrbook.json "https://github.com/Shoni-O/files/blob/main/testnet-files/lava/addrbook.json"

Setup the minimum gas price and Peers

sed -i -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0ulava\"/" $HOME/.lava/config/app.toml
external_address=$(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_propose = .*/timeout_propose = "1s"/' \
-e 's/timeout_propose_delta = .*/timeout_propose_delta = "500ms"/' \
-e 's/timeout_prevote = .*/timeout_prevote = "1s"/' \
-e 's/timeout_prevote_delta = .*/timeout_prevote_delta = "500ms"/' \
-e 's/timeout_precommit = .*/timeout_precommit = "500ms"/' \
-e 's/timeout_precommit_delta = .*/timeout_precommit_delta = "1s"/' \
-e 's/timeout_commit = .*/timeout_commit = "15s"/' \
-e 's/^create_empty_blocks = .*/create_empty_blocks = true/' \
-e 's/^create_empty_blocks_interval = .*/create_empty_blocks_interval = "15s"/' \
-e 's/^timeout_broadcast_tx_commit = .*/timeout_broadcast_tx_commit = "151s"/' \
-e 's/skip_timeout_commit = .*/skip_timeout_commit = false/' \
$HOME/.lava/config/config.toml
sed -i -e 's/broadcast-mode = ".*"/broadcast-mode = "sync"/g' $HOME/.lava/config/client.toml

Pruning

pruning="custom"
pruning_keep_recent="1000"
pruning_keep_every="0"
pruning_interval="100"
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

Create a service file

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

Start

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

Create validator

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-testnet-2 \
  --identity="" \
  --details="" \
  --website="" -y

Delete node

sudo systemctl stop lavad
sudo systemctl disable lavad
rm /etc/systemd/system/lavad.service
sudo systemctl daemon-reload
cd $HOME
rm -rf GHFkqmTzpdNLDd6T
rm -rf .lava
rm -rf $(which lavad)