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  1. Ensure that the environment variables are set correctly:

    Excerpt


    VariableDescription
    MZ_HOME
    This environment variable specifies where the software is installed.
    Note
    titleNote!

    Note!

    You should use an absolute path instead of a symlink for the MZ_HOME directory to avoid any issue during installation or upgrade.

    JAVA_HOMEThis environment variable specifies where the JDK is installed.
    PATHThis environment variable specifies the search path and must contain the following directories: $JAVA_HOME/bin:$MZ_HOME/bin



    Info
    titleExample - Setting Environment Variables


    Code Block
    languagetext
    themeEclipse
    export MZ_HOME=/opt/mz
export JAVA_HOME=/opt/jdk/jdk-17.0.2
export PATH=$JAVA_HOME/bin:$MZ_HOME/bin:$PATH



  2. Make a system export of all your configurations with System Export.

    Code Block
    languagetext
    $ mzsh mzadmin/<password> systemexport <backup directory>/<filename>


    Note
    titleNote!

    These configurations must be imported after the upgrade.


  3. For safety, make an online backup of the database(s). For information about how to perform an online backup, see Backup and Disaster Recovery Procedures.