I have a Google Compute Engine VM Instance that runs Ubuntu 16.04.
I stopped the instance more than an hour ago but it still hasn't stopped. It says "Unknown error." on notification panel.
I can't do any action on VM right now, because the process is still ongoing. It doesn't let me to stop, start, reset, delete, or access.
How can I force stop the instance? I need to access to the disk attached to VM, but I can't even create snapshot before stopping the VM.
Edit:
Instance stopped after 1.5 hours being stuck at "stopping" state. But I still couldn't find a way to force stop an instance.