Migration Guide (Quadrans to DAC) ​

This guide describes how to migrate an existing Quadrans Node to a DAC Node.

Overview ​

The migration tool helps transition your node from the legacy Quadrans network to the new DAC Blockchain network. It performs the following automated actions:

  1. Backs up your existing Quadrans configurations.
  2. Migrates the block database (chaindata) and keystores to the new DAC directory structure, saving time and bandwidth.
  3. Installs the new DAC Node software using the official automated installer.

Prerequisites ​

  • An existing, active Quadrans Node installation.
  • Root or Administrator access.
  • Sufficient disk space to copy and move chaindata directories.

Migration Scripts ​

Linux ​

Run the migration script directly via terminal:

bash
curl -O https://repo.dachain.tech/installer/migration/migrate_linux.sh
sudo bash migrate_linux.sh

macOS ​

Open Terminal and execute the macOS migration script:

bash
curl -O https://repo.dachain.tech/installer/migration/migrate_macos.sh
sudo bash migrate_macos.sh

Windows ​

Run the migration script from the Command Prompt:

cmd
curl -O https://repo.dachain.tech/installer/migration/migrate_windows.bat
migrate_windows.bat

(Alternatively, you can download it via browser, right-click it, and select Run as Administrator).

The script will automatically parse your old launcher to preserve your wallet address (for mining) and RPC settings, and will download and run the new DAC Node installer seamlessly.

Migration Process Under the Hood ​

The script performs the following sequence of events:

  1. Stop: The script halts any currently running Quadrans services/nodes to prevent database corruption.
  2. Move: It relocates chaindata to the new DAC data directory (e.g., ~/.dac/).
  3. Copy: It duplicates key elements like the keystore and password files into the new paths.
  4. Install: It invokes the official DAC Node installer in auto-mode. The installer automatically detects your previous network settings (Mainnet vs Testnet) and configures the new DAC node accordingly without requiring manual user input.
  5. Finalize: The old Quadrans service is stopped and disabled from booting.

Manual Migration (Step-by-Step) ​

If you prefer not to use the automated migration script, you can perform the migration manually by following these steps:

Step 1: Stop the Quadrans Service ​

  • Linux:
    bash
    sudo systemctl stop quadrans-node
sudo systemctl disable quadrans-node
  • macOS:
    bash
    sudo launchctl stop io.quadrans.gqdc
sudo launchctl unload /Library/LaunchDaemons/io.quadrans.gqdc.plist
  • Windows: Close the running node command prompt window, or run:
    cmd
    taskkill /F /IM gqdc.exe

Step 2: Copy Keystore and Password Files ​

  • Linux: Create the dac user and copy keystore files to the new dac user directory:
    bash
    sudo useradd -r -m -d /home/dac -s /bin/bash dac
sudo mkdir -p /home/dac/.dac/keystore
sudo cp -r /home/quadrans/.quadrans/keystore/. /home/dac/.dac/keystore/
sudo cp /home/quadrans/password.txt /home/dac/password.txt
sudo chown -R dac:dac /home/dac/
  • macOS: Copy files to the shared directory:
    bash
    sudo mkdir -p /Users/Shared/DAC/.dac/keystore
sudo cp -r /Users/Shared/Quadrans/.quadrans/keystore/. /Users/Shared/DAC/.dac/keystore/
sudo cp /Users/Shared/Quadrans/password.txt /Users/Shared/DAC/password.txt
  • Windows: Copy directories manually or run:
    cmd
    xcopy /E /I /Y "%USERPROFILE%\QuadransNode\keystore" "%USERPROFILE%\DACNode\keystore"
copy /Y "%USERPROFILE%\QuadransNode\password.txt" "%USERPROFILE%\DACNode\password.txt"

Step 3: Copy Node P2P Identity nodekey (Optional) ​

Copy the nodekey file to preserve your node's peer-to-peer Enode identity:

  • Linux:
    bash
    sudo mkdir -p /home/dac/.dac/gdacnode
sudo cp /home/quadrans/.quadrans/gqdc/nodekey /home/dac/.dac/gdacnode/nodekey
sudo chown -R dac:dac /home/dac/
  • macOS:
    bash
    sudo mkdir -p /Users/Shared/DAC/.dac/gdacnode
sudo cp /Users/Shared/Quadrans/.quadrans/gqdc/nodekey /Users/Shared/DAC/.dac/gdacnode/nodekey
  • Windows:
    cmd
    if not exist "%USERPROFILE%\DACNode\gdacnode" mkdir "%USERPROFILE%\DACNode\gdacnode"
copy /Y "%USERPROFILE%\QuadransNode\gqdc\nodekey" "%USERPROFILE%\DACNode\gdacnode\nodekey"

Step 4: Move Chaindata ​

Moving your blockchain database avoids resyncing from scratch:

  • Linux:
    bash
    sudo mv /home/quadrans/.quadrans/gqdc/chaindata /home/dac/.dac/gdacnode/chaindata
sudo chown -R dac:dac /home/dac/
  • macOS:
    bash
    sudo mv /Users/Shared/Quadrans/.quadrans/gqdc/chaindata /Users/Shared/DAC/.dac/gdacnode/chaindata
  • Windows:
    cmd
    move "%USERPROFILE%\QuadransNode\gqdc\chaindata" "%USERPROFILE%\DACNode\gdacnode\chaindata"

Step 5: Install and Configure DAC Node ​

Run the official automated installer, which will detect the migrated data structure and generate the background services:

  • Linux / macOS:
    bash
    curl -o dac-install.sh https://repo.dachain.tech/installer/install.sh && sudo bash dac-install.sh
  • Windows: Run install.bat as Administrator.

Verify in /home/dac/environment (Linux), /Users/Shared/DAC/environment (macOS), or %USERPROFILE%\DACNode\start.bat (Windows) that the --miner.etherbase and --unlock parameters contain your migrated wallet address.

Validation ​

Address Verification

Ensure that your account address matches the address you used under Quadrans. This is critical if you are a Validator, Supervisor, or Miner receiving block rewards.

Verify your new node is running correctly:

Linux / macOS ​

Run the status script from any terminal:

bash
dacnode-status

Windows ​

Navigate to your node installation folder and run:

cmd
cd %USERPROFILE%\DACNode
status.bat

For detailed explanations of the metrics shown in these status tools, please see the Status Monitor guide.