💾Node Installation

Lum Mainnet guide

EXPLORER

• Minimum hardware requirements:

Node Type	CPU	RAM	Storage
Mainnet	8	16GB	250GB

1) Auto_install script

source <(curl -s https://raw.githubusercontent.com/111STAVR111/props/refs/heads/main/Lum/lumm)

2) Manual installation

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 03.06.24

cd $HOME && mkdir -p go/bin/
git clone https://github.com/lum-network/chain.git lum
cd lum
git checkout v1.6.7
make install

lumd version --long | grep -e commit -e version

• version: 1.6.7

• commit: 54363624e7d24444ac6578d06c4606352288997b

Initiation

lumd init STAVR_guide --chain-id=lum-network-1
lumd config chain-id lum-network-1

Create/recover wallet

lumd keys add <walletname>
           OR
lumd keys add <walletname> --recover

Download Genesis

wget -L -O $HOME/.lumd/config/genesis.json https://server-1.stavr.tech/Mainnet/Lum/genesis.json

sha256sum $HOME/.lumd/config/genesis.json

• 3bbbd7aff6c545126d869fc683f6344e65ae71b048b25540826cd2f3be91a24c

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

sed -i.bak -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0.0001ulum\"/;" ~/.lumd/config/app.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.lumd/config/config.toml
peers=""
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.lumd/config/config.toml
seeds=""
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.lumd/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.lumd/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 50/g' $HOME/.lumd/config/config.toml

Pruning (optional)

pruning="custom"
pruning_keep_recent="1000"
pruning_keep_every="0"
pruning_interval="10"
sed -i -e "s/^pruning *=.*/pruning = \"$pruning\"/" $HOME/.lumd/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.lumd/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.lumd/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.lumd/config/app.toml

Indexer (optional)

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

Download addrbook

wget -O $HOME/.lumd/config/addrbook.json "https://server-1.stavr.tech/Mainnet/Lum/addrbook.json"

Create a service file

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

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

[Install]
WantedBy=multi-user.target
EOF

StateSync Lum Mainnet

systemctl stop lumd
SNAP_RPC=https://lum.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/.lumd/config/config.toml
lumd tendermint unsafe-reset-all --home /root/.lumd
wget -O $HOME/.lumd/config/addrbook.json "https://server-1.stavr.tech/Mainnet/Lum/addrbook.json"
sudo systemctl restart lumd && journalctl -fu lumd -o cat

SnapShot Mainnet updated every 5 hours

You can check the size and time of snapshot creation with this command curl -sI https://server-1.stavr.tech/Mainnet/Lum/lum-snap-1.tar.lz4 | grep "last" && curl -sI https://server-1.stavr.tech/Mainnet/Lum/lum-snap-1.tar.lz4 | grep content-length | awk '{printf "%.2f GB\n", $2/1024/1024/1024}'

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

Start

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

Create validator

lumd tx staking create-validator \
--commission-rate 0.1 \
--commission-max-rate 0.2 \
--commission-max-change-rate 0.1 \
--min-self-delegation "1" \
--amount=1000000ulum \
--pubkey $(lumd tendermint show-validator) \
--from <wallet> \
--moniker="STAVR_guide" \
--chain-id lum-network-1 \
--fees="20ulum" \
--identity="" \
--website="" \
--details="" -y

🧩Services and Tools🧩

Monitoring

You can set up your node status alarm here - Monitoring

Security

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

TMKMS Wallet Security

Delete node

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