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• By default the installer is interactive and will prompt you for decisions and confirmations; If you want to run it in non-interactive batch mode, use the -y option.
  In this case all dialogs and prompts are automatically answered with the default answer (usually 'y').
• Please note that in non-interactive mode the installer will abort upgrades if critical incompatibilities (e.g. license type) are detected; the option to overrule the installer in such situations is only present when the installer is running interactively.
• Certain installer choices can be preset for non-interactive mode:
  1. Setting the environment variable NOvariable NO_LOCAL_MONGODB to a non-empty value instructs the installer to not install a local MongoDB server even if none is present.
     Please note that you will have to manually adjust the Opmantek daemon init scripts or systemd unit files after installation, as these express the dependency on a local  MongoDB installation.
  2. ABI2 based applications released after 13 May 2020 will offer a more comprehensive option '-m f' or '-m F' to instruct the installer to  skip all MongoDB related instructions completely during the install.
     This option is more comprehensive than environment variable NO_LOCAL_MONGODB.
     NO_LOCAL_MONGODB only prevents install of MongoDB, but does not not skip other MongoDB related instructions that will be executed by the installer.
     Please note that you may have to manually adjust the Opmantek daemon init scripts or systemd unit files after installation, should these express the dependency on a local  MongoDB installation.
• If you want to install the product into a non-standard directory, you can pass the argument -t <targetdir> to the installer component.
  Please note that you will have to adjust a number of configuration files in this case.
• It is possible to generate more detailed diagnostic output in the installer log file, using the -d option.

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