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h2. Overview 
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The Yellowfin Installer supports three modes of operation:
# Standard Graphical Installer
# Command-line Installer
# Silent Installer

The installer is distributed both as a Windows Executable (.exe) or a Java Archive (.jar) file. The Windows Executable installer only supports the graphical installation mode. When using the .jar installer, the default behaviour is to launch the graphical installer. If no graphical environment is detectedavailable, for example on a headless linux/unix server, the command-line installer will be launched instead. The installation mode can be specifically selected by adding a switch argument to the command used to run the installer.:

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java -jar yellowfin-yyyymmdd-full.jar -gui
java -jar yellowfin-yyyymmdd-full.jar -cmd
java -jar yellowfin-yyyymmdd-full.jar -silent
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If the graphical installer is requested with {{-gui}}, but no graphical environment is available, an error message will be displayed.

There is also a Windows executable version of the installer, which only supports graphical installation mode.

Each installation mode performs the same tasks, and requires the same parameter values to be entered. However, the way they are displayed is quite different.

The general process undertaken by the installer is:
# Obtain values for user options
# Install distribution files
# Setup Yellowfin database
# Perform post-installation tasks

The installer provides a high level of customisation. ParametersInstaller properties may be set which can be used to customise the text and images displayed during the installation, pre-populationpopulate user options, hide or show different options, and perform post-installation tasks to change the default behaviour of Yellowfin. These
parameters
canThe besilent setinstaller indoes differentnot ways.display Ina orderuser ofinterface. precedence,This thesecan are:be #useful Default options provided bywhen bundling the installer where appropriate
# Custom properties file bundled with the installer
# Command-line arguments provided to the installer
# Silent installer properties file (silent installation only)
# Options entered by the user during the installation (graphical and command-line installation)

For example, an option specified on the command line will override the same option specified in the custom properties file.Yellowfin installer as part of another installer that has its own user interface.

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