Problem setting VM closing

[boxino]

I installed Oracle VM 5.2.12. I had set, for some VMs, the non-automatic closing of the same. I tried to apply the commands in https://www.virtualbox.org/manual/ch09.html#idm9354 9.20.9. Default action when terminating the VM but give error:

: sudo VBoxManage setextradata /media/mycomputer-i/DATAHD/Debian-new/Debian9o.vdi GUI/DefaultCloseAction Detach
VBoxManage: error: Could not find a registered machine named '/media/mycomputer-i/DATAHD/Debian-new/Debian9o.vdi'
VBoxManage: error: Details: code VBOX_E_OBJECT_NOT_FOUND (0x80bb0001), component VirtualBoxWrap, interface IVirtualBox, callee nsISupports
VBoxManage: error: Context: "FindMachine(Bstr(a->argv[0]).raw(), machine.asOutParam())" at line 808 of file VBoxManageMisc.cpp

I would like to ask for confirmation before closing the machine in question.
Help me.

[Martin]

The path and name of the virtual harddisk file is not the "VM name"...

[socratis]

As Martin said, you pointed to the virtual hard drive, not to the VM. To get the list of registered VMs, the command is:

• VBoxManage list vms

That lists both the VM registered name, and the VM UUID.

[boxino]

Code: Select all

:~$ VBoxManage list vms
....
"XP-Prove" {......}

:~$ sudo VBoxManage setextradata "XP-Prove" GUI/GuruMeditationHandler PowerOff
VBoxManage: error: Could not find a registered machine named 'XP-Prove'
VBoxManage: error: Details: code VBOX_E_OBJECT_NOT_FOUND (0x80bb0001), component VirtualBoxWrap, interface IVirtualBox, callee nsISupports
VBoxManage: error: Context: "FindMachine(Bstr(a->argv[0]).raw(), machine.asOutParam())" at line 808 of file VBoxManageMisc.cpp

:~$ sudo VBoxManage setextradata XP-Prove GUI Default
VBoxManage: error: Could not find a registered machine named 'XP-Prove'
VBoxManage: error: Details: code VBOX_E_OBJECT_NOT_FOUND (0x80bb0001), component VirtualBoxWrap, interface IVirtualBox, callee nsISupports
VBoxManage: error: Context: "FindMachine(Bstr(a->argv[0]).raw(), machine.asOutParam())" at line 808 of file VBoxManageMisc.cpp

:~$ sudo VBoxManage setextradata "XP-Prove" GuruMeditationHandler PowerOff
VBoxManage: error: Could not find a registered machine named 'XP-Prove'
VBoxManage: error: Details: code VBOX_E_OBJECT_NOT_FOUND (0x80bb0001), component VirtualBoxWrap, interface IVirtualBox, callee nsISupports
VBoxManage: error: Context: "FindMachine(Bstr(a->argv[0]).raw(), machine.asOutParam())" at line 808 of file VBoxManageMisc.cpp

[Martin]

Don't use 'sudo'.
With sudo you switch the command from your user to the root user and root doesn't have/know your user's VMs.

[socratis]

There is this notion that using "sudo" will make you more powerful. Not in the VirtualBox world, it won't. VirtualBox is a per user context process/files/VMs. Not shareable, not accessible by anyone else. By design...