1. Enter the following to navigate to the Desktop directory:
    cd ~/Desktop
  1. Use the following command to install the Optic .deb:
    sudo dpkg -i FINStack-5.1.XXXX.deb
    Where:
    XXXX indicates the minor version of FIN/Optic.
  1. Follow the screen prompts.
  1. The default setting is recommended for the Base install folder.
  1. Skip the prompt to input the heap size for Optic. The heap will be configured in a later step.
  1. Open the finstack.service file with an editor.
  1. (Optional) To increase the heap size of your installation, modify the number (in MB) after -Xmx. See the following figure for more information.
  1. Save the finstack.service file and close the editor.

The next step includes a reboot command, which is required for the service to start. You may exclude the reboot line to postpone this step.

  1. Enter the following sequence of commands:
    sudo mv finstack.service /etc/systemd/system/finstack.service

    sudo systemctl daemon-reload

    sudo systemctl enable finstack

    sudo systemctl start finstack

    sudo reboot
  1. After the computer reboots, open a browser and navigate to: http://localhost:8080
  • The login screen displays, and FIN has been successfully installed through the deb installer.