SOLVED Can't remove a virtual machine from Virtual Machines

[Kannderni]

I installed a virtual machine (Debian) on TrueNAS-12.0-U3 i think a long time ago. But i wanted to remove it but i couldn't. Why is this? I'm now running on TrueNAS-12.0-U8. Still can't remove it or do anything about it. This is the error message i get when i try to delete it:

And when i try force deleting it it gives me this error:

Code:

Error: concurrent.futures.process._RemoteTraceback:
"""
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/middlewared/plugins/zfs.py", line 853, in do_delete
    subprocess.run(
  File "/usr/local/lib/python3.9/subprocess.py", line 528, in run
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['zfs', 'destroy', '-r', '********/Virtual Machine/Debian-9z2j2']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/concurrent/futures/process.py", line 243, in _process_worker
    r = call_item.fn(*call_item.args, **call_item.kwargs)
  File "/usr/local/lib/python3.9/site-packages/middlewared/worker.py", line 111, in main_worker
    res = MIDDLEWARE._run(*call_args)
  File "/usr/local/lib/python3.9/site-packages/middlewared/worker.py", line 45, in _run
    return self._call(name, serviceobj, methodobj, args, job=job)
  File "/usr/local/lib/python3.9/site-packages/middlewared/worker.py", line 39, in _call
    return methodobj(*params)
  File "/usr/local/lib/python3.9/site-packages/middlewared/worker.py", line 39, in _call
    return methodobj(*params)
  File "/usr/local/lib/python3.9/site-packages/middlewared/plugins/zfs.py", line 865, in do_delete
    raise CallError(f'Failed to delete dataset: {error}', errno_)
middlewared.service_exception.CallError: [EFAULT] Failed to delete dataset: cannot open '********/Virtual Machine/Debian-9z2j2': dataset does not exist
"""

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/middlewared/main.py", line 138, in call_method
    result = await self.middleware._call(message['method'], serviceobj, methodobj, params, app=self,
  File "/usr/local/lib/python3.9/site-packages/middlewared/main.py", line 1213, in _call
    return await methodobj(*prepared_call.args)
  File "/usr/local/lib/python3.9/site-packages/middlewared/service.py", line 506, in delete
    rv = await self.middleware._call(
  File "/usr/local/lib/python3.9/site-packages/middlewared/main.py", line 1213, in _call
    return await methodobj(*prepared_call.args)
  File "/usr/local/lib/python3.9/site-packages/middlewared/schema.py", line 975, in nf
    return await f(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/middlewared/plugins/vm.py", line 1541, in do_delete
    await self.middleware.call('zfs.dataset.delete', disk_name, {'recursive': True})
  File "/usr/local/lib/python3.9/site-packages/middlewared/main.py", line 1256, in call
    return await self._call(
  File "/usr/local/lib/python3.9/site-packages/middlewared/main.py", line 1213, in _call
    return await methodobj(*prepared_call.args)
  File "/usr/local/lib/python3.9/site-packages/middlewared/service.py", line 506, in delete
    rv = await self.middleware._call(
  File "/usr/local/lib/python3.9/site-packages/middlewared/main.py", line 1221, in _call
    return await self._call_worker(name, *prepared_call.args)
  File "/usr/local/lib/python3.9/site-packages/middlewared/main.py", line 1227, in _call_worker
    return await self.run_in_proc(main_worker, name, args, job)
  File "/usr/local/lib/python3.9/site-packages/middlewared/main.py", line 1154, in run_in_proc
    return await self.run_in_executor(self.__procpool, method, *args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/middlewared/main.py", line 1128, in run_in_executor
    return await loop.run_in_executor(pool, functools.partial(method, *args, **kwargs))
middlewared.service_exception.CallError: [EFAULT] Failed to delete dataset: cannot open '********/Virtual Machine/Debian-9z2j2': dataset does not exist

What causes the problem i have no idea, but i think the VM does not exist anymore only in the UI.

 

[KrisBee]

Do you still have a dataset named "Virtual Machine" in your pool? Does the zvol "Debian-9z2j2'" still exist under the "Virtual Machine" dataset?
If you select the vm "devices", can you delete the attached "disk"?

 

[Kannderni]

I deleted the disk and now I was able to delete the Virtual Machine. Thanks!