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Installation

![lambda]

Chain ID: lambda_92000-1 | Latest Version Tag: v1.0.1 |

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/go1.20.5.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 lambdavm
git clone https://github.com/LambdaIM/lambdavm.git
cd lambdavm
git checkout v1.0.1

# Build binaries
make build

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

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

Install Cosmovisor and create a service​

# Download and install Cosmovisor
go install cosmossdk.io/tools/cosmovisor/cmd/cosmovisor@v1.4.0

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

[Service]
User=$USER
ExecStart=$(which cosmovisor) run start
Restart=on-failure
RestartSec=10
LimitNOFILE=65535
Environment="DAEMON_HOME=$HOME/.lambdavm"
Environment="DAEMON_NAME=lambdavm"
Environment="UNSAFE_SKIP_BACKUP=true"
Environment="PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:$HOME/.lambdavm/cosmovisor/current/bin"

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

Initialize the node​

# Set node configuration
lambdavm config chain-id lambda_92000-1
lambdavm config keyring-backend file

# Initialize the node
lambdavm init <moniker> --chain-id lambda_92000-1
lambdavm keys add <wallet_name>

# Download genesis and addrbook
curl -Ls http://lambda.nomadvalidator.com/genesis.json > ~/.lambdavm/config/genesis.json
curl -Ls http://lambda.nomadvalidator.com/addrbook.json > ~/.lambdavm/config/addrbook.json

# Add seeds
SEEDS="2c4f8e193fd10ab3a2bc919b484fd1c78eceffb3@13.213.214.88:26656,234b319119af66069cc44323a622dd40748f72e1@rpc.lambda.nomadvalidator.com:26656"
PEERS="53e1c5f1783e839b1b1b51ae57ed2f05b9cdb4f3@13.229.27.15:26656,52be999cce21f923d8253a88bcc51bafe2063fb3@37.120.191.47:56656,5a3dd7ea8d2bb3a76b760d4b2a425408401401f9@65.21.131.215:26556,b411a47f21567a6684c2a702e8f50d4d58cf0da5@66.45.251.38:36656,6634b55d319b74e07c63534dd2c7d7987d90e6ef@46.4.81.204:38656,939117297780a99fba5394319b29e30414398e4b@65.21.91.160:26767,5d8444f272d2a3a380373b42c0ae3fd87f116f0e@3.145.73.186:26656,2c4f8e193fd10ab3a2bc919b484fd1c78eceffb3@13.213.214.88:26656"
sed -i.bak -e "s/^seeds *=.*/seeds = \"$SEEDS\"/; s/^persistent_peers *=.*/persistent_peers = \"$PEERS\"/" $HOME/.lambdavm/config/config.toml

# Set minimum gas price
sed -i -e "s|^minimum-gas-prices *=.*|minimum-gas-prices = \"0.0001ulamb\"|" $HOME/.lambdavm/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/.lambdavm/config/app.toml


### Download latest chain snapshot

```bash
SOON

Start service and check the logs​

sudo systemctl start lambdavm && sudo journalctl -u lambdavm -f --no-hostname -o cat