CauseThe vzup2date tool requires Service Container (SCT) to be running to install updates. Installation process of PVA Agent on slave nodes removes SCT and creates a new one with only one process running. If Power Panel component is not chosen during PVA Agent installation on Slave node SCT is not created.
ResolutionThe issue can be fixed by two ways:
1. Add PVA Power Panel component using PVA Agent installer;
2. If Power Panel is not required it is necessary to create container with ID 1.
Note: It is not recommended to restore old CT1 or create a new one using "vzsevinstall" tool.