Preparing the System for SAPinst GUI 

Use

You need to prepare your system for SAPinst. This includes the installation of a Java Runtime Environment (JRE), which is required both for SAPinst and the SAPinst GUI. The installation tool SAPinst uses the Java-based graphical user interface SAPinst GUI. Preparing the system for SAPinst GUI consists of checking your Java Runtime Environment (JRE) because the JRE could not be integrated in the SAPinst GUI executable due to licensing issues.

If required, you can perform a remote installation using a stand-alone SAPinst GUI on a separate Windows or UNIX host. This lets you perform the installation on a remote host, controlling it with the SAPinst GUI from a local host.

If you want to perform a remote installation, see Starting SAPinst on the Remote Host (Optional). In this case, you need at least a JRE on the local host to start the SAPinst GUI there.

Procedure

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You have to check that there is of a released Java Runtime Environment (JRE) on the host on which SAPinst GUI should run. JRE is not part of the SAP shipment. If necessary you need to download and install the required version.

       1.      Check the JRE versions that are released for SAP systems on the SAP Service Marketplace at: service.sap.com/pam → SAP NetWeaver → SAP NetWeaver → JSE Platforms

       2.      Make sure a valid JRE version is installed, as follows:

○       If JRE is not already installed:

Since JRE is not part of the SAP shipment, you need to download and install it. JRE is part of the JDK (Java Development Kit).

For additional information about the recommended JRE version, see SAP Note 709140.

○       If JRE is already installed:

Check the installed version of JRE by entering: java -version

SAPinst checks the environment variable SAPINST_JRE_HOME for a valid Java Runtime Environment. If SAPINST_JRE_HOME is not found, SAPinst also checks JAVA_HOME.

UNIX/Linux only:

If you use a Sun Java VM, you have to edit the configuration file $JAVA_HOME/jre/lib/security/java.security, replacing entry securerandom.source=file:/dev/random with securerandom.source=file:/dev/urandom .

Platform	Required JRE for the SAPinst GUI
All platforms	The required JRE is 1.4.2 or higher.