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This panel allows choosing between two installation types:

  • normal installation
    (default, if modify.izpack.install not set or false) 
  • modifying a previous installation

For this purpose it presents tow radiobuttons to the user:

  • New installation
  • Modify installation

It uses the reserved internal IzPack variable modify.izpack.install as input and output for controlling the behavior of other panels, like the TargetPanel.

Further, it may check the $INSTALL_PATH/.installationinformation file, which must have been written by a previous installation to be able to modify it.


Built-in VariableDescriptionDefault Value


Can be initially set in the <variable> section to change the default settings on opening this panel first.



KeyDefault (English)Description
InstallationTypePanel.infoPlease choose the type of installation:The label text above the radiobuttons

New installation

The label of the first radiobutton
  • Modify installation
The label of the second radiobutton
  • No labels