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

If "Modify installation" is chosen the installers loads packs already installed in a previous installation and removes them from the packs to be actually installed. Therefore, on subsequentially opening a PacksPanel, there is just the set of packs presented to the user, which actually haven't been installed to this time.

Further this has influence on PathInputPanel and TargetInputPanel, requiring them to not only check the existing target installation path, but also the .installationinformation file. The installation is not allowed to go on if this condition is not fulfilled.

Customization

Built-in VariableDescriptionDefault Value

modify.izpack.install

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

false

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

New installation

The label of the first radiobutton
InstallationTypePanel.modify

Modify installation

The label of the second radiobutton