Validate on rebel-2

Versions and network endpoints

Tip Rebel-2 might require more frequent upgrades than mainnet. Keep your own testnet node or snapshot source ready for rapid restores.

Prerequisites

• Linux server (Ubuntu/Debian recommended)
• ≥ 4 CPU cores
• 32 GB RAM minimum (48 GB to 64 GB preferred)
• Swap space configured for cases of memory pressure
• 1 TB NVMe SSD (2 TB recommended for pruning space and snapshots)

Install toolchain and build terradCopy terradCopied

1. Follow the instructions in System configuration and Build Terra Core.

Important

rebel-2 might require a different go version than mainnet. Check the version table above.

Bootstrap chain data

1. Initialise node configuration for rebel-2.

   BASH
   terrad init <testnet-moniker>
   Copy

2. Download the latest address book and genesis files.

   BASH
   cd ~/.terra/config
   wget -O addrbook.json "https://snapshots.luncblaze.com/rebel-2/addrbook.json"
   wget -O genesis.json "https://snapshots.luncblaze.com/rebel-2/genesis.json"
   Copy

3. Ensure iavl-disable-fastnode = falseCopy iavl-disable-fastnode = falseCopied in config/app.tomlCopy config/app.tomlCopied before restoring snapshots. Rebel-2 snapshots published after May 2025 expect fast-node mode.

4. Fetch a recent snapshot.

   BASH
   cd ~/.terra
   mv data data~backup
   wget -O snapshot.tar.lz4 "https://snapshots.luncblaze.com/rebel-2/rebel2-latest.tar.lz4"
   lz4cat snapshot.tar.lz4 | tar xvf -
   Copy

5. Start the node and wait for sync.

   BASH
   terrad start
   terrad status
   Copy

Join the validator set

1. Create a signing key.

   BASH
   terrad keys add valwallet
   terrad keys list
   Copy

2. Request testnet LUNC through the rebel-2 faucet bot. Or rebel-2 faucet by LuncGoblins. Operators @StrathCole and @fragwuerdig can assist if the faucet is offline.

3. Register the validator.

   BASH
   terrad tx staking create-validator \
     --amount "10000000uluna" \
     --commission-max-change-rate "0.01" \
     --commission-max-rate "0.2" \
     --commission-rate "0.1" \
     --min-self-delegation 1 \
     --pubkey "$(terrad tendermint show-validator)" \
     --moniker "myvalidator" \
     --chain-id rebel-2 \
     --gas auto \
     --gas-prices 28.325uluna \
     --gas-adjustment 1.4 \
     --from valwallet
   Copy

4. Confirm the validator is visible.

   BASH
   terrad q staking validators | grep -A6 "myvalidator"
   Copy

Oracle feeder setup

1. Create the feeder wallet and delegate privileges.

   BASH
   terrad keys add feederwallet
   terrad tx oracle set-feeder <feederwallet> --from valwallet --chain-id rebel-2 --gas auto --gas-prices 5uluna --gas-adjustment 2
   Copy

2. Enable the local LCD (enable = trueCopy enable = trueCopied in ~/.terra/config/app.tomlCopy ~/.terra/config/app.tomlCopied under [api]Copy [api]Copied) and restart the node. Use max-open-connections = 500Copy max-open-connections = 500Copied to avoid exhausting sockets during stress tests.

3. Deploy the price server following the oracle-feeder repository. Example run command:

   BASH
   npm start vote -- \
     -d http://localhost:8532/latest \
     --lcd-url http://127.0.0.1:1317 \
     --chain-id rebel-2 \
     --validators <your-valoper-address> \
     --password <wallet-password>
   Copy

4. Join the validator coordination chat on Telegram (contact @StrathCole or @fragwuerdig) for upgrade announcements.

Leaving the testnet safely

• Use terrad tx staking unbondCopy terrad tx staking unbondCopied to exit the active set:

  BASH
  terrad tx staking unbond <your-valoper-address> 10000000uluna --from valwallet --chain-id rebel-2 --gas auto --gas-prices 5uluna --gas-adjustment 2
  Copy

• Confirm the validator status becomes BOND_STATUS_UNBONDINGCopy BOND_STATUS_UNBONDINGCopied before shutting down.

Troubleshooting

• Feeder wallet not found: Fund the feeder wallet with a small LUNC balance so the account exists on-chain.
• Price feeder idle: Ensure the LCD API is running locally and that feeder/core versions match the listed versions.