For safety consideration, remove DROP_DB option from default installation by option -a . If current machine has installed zstack or has zstack database, default zstack installation will fail. User need to add -k or -D option to let installer know how to deal with zstack previous database.
For safety consideration, remove DROP_DB option from default installation by option -a . If current machine has installed zstack or has zstack database, default zstack installation will fail. User need to add -k or -D option to let installer know how to deal with zstack previous database.

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