Run the upgrade as part of a batch (non-interactive) process from the command line:

/bin/bash upgrade_script.sh [TARGET_VERSION] [BACKUP_DIR_PATH][dodump|nodump]

The command line parameters are:

  • TARGET_VERSION – The desired version, contained on the installation DVD/ISO. For example: 8.1.520.
  • BACKUP_DIR_PATH – The full path to an existing directory. This is used for the storage of backup files created during the upgrade. For example: /home/backup. This directory should exist with full read-write permissions (750) before you run the script. 
  • dodump [or] nodump – Specifies whether to create a database backup file or not, respectively, before you start the upgrade.
  • l -h [or] --help –  Displays the information above.

If you do not enter the parameters, interactive mode starts up.

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If you specify the nodump as a parameter, this deletes all the existing databases and data during the upgrade. If you do not back up a database, it can't be restored after the upgrade.

Example:

/bin/bash upgrade_script.sh 5.2 /home/backup dodump