Error with linux startup in VM

[chaoticdopey]

Ok so i installed Parrot OS on Truenas and it worked great for the first day but after i restarted my truenas server i get this call error when trying to start the VM

[EFAULT] Unable to define domain for Parrot: cannot serialize None (type NoneType)

More Info
Error: Traceback (most recent call last):

File "/usr/lib/python3.9/xml/etree/ElementTree.py", line 1052, in _escape_attrib

if "&" in text:

TypeError: argument of type 'NoneType' is not iterable



During handling of the above exception, another exception occurred:



Traceback (most recent call last):

File "/usr/lib/python3/dist-packages/middlewared/plugins/vm/vm_supervisor.py", line 45, in _check_add_domain

self._add(self._vm_from_name(vm_name)['id'])

File "/usr/lib/python3/dist-packages/middlewared/plugins/vm/vm_supervisor.py", line 16, in _add

self._add_with_vm_data(vm)

File "/usr/lib/python3/dist-packages/middlewared/plugins/vm/vm_supervisor.py", line 19, in _add_with_vm_data

self.vms[vm['name']] = VMSupervisor(vm, self.middleware)

File "/usr/lib/python3/dist-packages/middlewared/plugins/vm/supervisor/supervisor.py", line 30, in __init__

self.update_domain()

File "/usr/lib/python3/dist-packages/middlewared/plugins/vm/supervisor/supervisor.py", line 60, in update_domain

self.__define_domain()

File "/usr/lib/python3/dist-packages/middlewared/plugins/vm/supervisor/supervisor.py", line 92, in __define_domain

vm_xml = etree.tostring(self.construct_xml()).decode()

File "/usr/lib/python3.9/xml/etree/ElementTree.py", line 1109, in tostring

ElementTree(element).write(stream, encoding,

File "/usr/lib/python3.9/xml/etree/ElementTree.py", line 748, in write

serialize(write, self._root, qnames, namespaces,

File "/usr/lib/python3.9/xml/etree/ElementTree.py", line 913, in _serialize_xml

_serialize_xml(write, e, qnames, None,

File "/usr/lib/python3.9/xml/etree/ElementTree.py", line 913, in _serialize_xml

_serialize_xml(write, e, qnames, None,

File "/usr/lib/python3.9/xml/etree/ElementTree.py", line 913, in _serialize_xml

_serialize_xml(write, e, qnames, None,

[Previous line repeated 1 more time]

File "/usr/lib/python3.9/xml/etree/ElementTree.py", line 906, in _serialize_xml

v = _escape_attrib(v)

File "/usr/lib/python3.9/xml/etree/ElementTree.py", line 1075, in _escape_attrib

_raise_serialization_error(text)

File "/usr/lib/python3.9/xml/etree/ElementTree.py", line 1029, in _raise_serialization_error

raise TypeError(

TypeError: cannot serialize None (type NoneType)



During handling of the above exception, another exception occurred:



Traceback (most recent call last):

File "/usr/lib/python3/dist-packages/middlewared/main.py", line 184, in call_method

result = await self.middleware._call(message['method'], serviceobj, methodobj, params, app=self)

File "/usr/lib/python3/dist-packages/middlewared/main.py", line 1317, in _call

return await methodobj(*prepared_call.args)

File "/usr/lib/python3/dist-packages/middlewared/schema.py", line 1379, in nf

return await func(*args, **kwargs)

File "/usr/lib/python3/dist-packages/middlewared/schema.py", line 1247, in nf

res = await f(*args, **kwargs)

File "/usr/lib/python3/dist-packages/middlewared/plugins/vm/vm_lifecycle.py", line 46, in start

await self.middleware.run_in_thread(self._start, vm['name'])

File "/usr/lib/python3/dist-packages/middlewared/main.py", line 1234, in run_in_thread

return await self.run_in_executor(self.thread_pool_executor, method, *args, **kwargs)

File "/usr/lib/python3/dist-packages/middlewared/main.py", line 1231, in run_in_executor

return await loop.run_in_executor(pool, functools.partial(method, *args, **kwargs))

File "/usr/lib/python3.9/concurrent/futures/thread.py", line 52, in run

result = self.fn(*self.args, **self.kwargs)

File "/usr/lib/python3/dist-packages/middlewared/plugins/vm/vm_supervisor.py", line 67, in _start

self._check_add_domain(vm_name)

File "/usr/lib/python3/dist-packages/middlewared/plugins/vm/vm_supervisor.py", line 47, in _check_add_domain

raise CallError(f'Unable to define domain for {vm_name}: {e}')

middlewared.service_exception.CallError: [EFAULT] Unable to define domain for Parrot: cannot serialize None (type NoneType)







What do i need to do to fix this without reinstalling parrot

OS Version:TrueNAS-SCALE-22.12.4.2
Product:HP Z440 Workstation
Model:Intel(R) Xeon(R) CPU E5-2680 v4@ 2.40GHz
Memory:126 GiB

 

[Memento196]

Same here (VM with WIN11). After reastarting Scale VM is not starting anymore.

 

[Memento196]

Solved it! Go to your VM -> Devices -> USB ->Edit . Have a Look at the "Davide*" dropdown, Mine was empty i just selected USB Hub and the VM is starting