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Advanced installation topics
Beyond the graphical installer: text-based and unattended installation plus later server adjustments.
HOW-TO OPERATIONS STAND: JUL 2026 GILT FUER NUCLOS 4.2026.X
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Text-interactive installation
Without a GUI (e.g. over SSH) use the generic installer with -c:
java -jar nuclos-<version>-installer-generic.jar -c
If that fails, run it headless:
java -Djava.awt.headless=true -jar nuclos-<version>-installer-generic.jar
Unattended installation
For automated rollouts, pass the settings as an XML file and start with -s:
<?xml version="1.0"?>
<nuclos>
<server>
<home><!-- installation path --></home>
<name><!-- instance name --></name>
<http><enabled>true</enabled><port>80</port></http>
<https><enabled>false</enabled><port>443</port></https>
<shutdown-port>8005</shutdown-port>
<heap-size>1024</heap-size>
<java-home>/opt/java</java-home>
<launch-on-startup>true</launch-on-startup>
</server>
<database>
<adapter>postgresql</adapter>
<connection-url>jdbc:postgresql://localhost:5432/postgres</connection-url>
<username>nuclos</username>
<password>nuclos</password>
<schema>nuclos</schema>
</database>
</nuclos>
java -jar nuclos-<version>-installer-generic.jar -s <path to config file>
Update
To update an existing installation (> 3.0.0), use the existing <nuclos-home>/nuclos.xml as the config file.
Change the document path later
The document path can only be set on first install; during updates the field is disabled. If needed, do it manually:
- Change the path directly in
nuclos.xml(<documentPath>). - Run the installer/update – it takes the values from nuclos.xml.
- Copy existing documents into the new directory manually.
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