Trying to use the option
--unregister — Use this parameter when uninstalling a cluster to unregister the cluster and release license from Mission Control.
but i received
# ./dynatrace-managed.sh --unregister
Starting Dynatrace 184.108.40.20690423-100415 installer ...
Upgrade failed after less then 1 second.
Exit code: 1
You cannot use "--unregister" option during upgrade.
More details in log file: "/var/log/dynatrace/install.log"
I've stopped the server, disabled automatic updates and getting the same. How can I cancel Upgrade?