>
> Oct 03 17:03:21 Ubuntuserver weewxd[1987]: CRITICAL weewx.engine:     ****
>  weewx.WeeWxIOError: Unable to read hardware type. Check for 2nd instance
> of weew>
> Oct 03 17:03:21 Ubuntuserver weewxd[1987]: CRITICAL __main__: Unable to
> load driver: Unable to read hardware type. Check for 2nd instance of weewx.
> Also, tr>


Did you check for a 2nd instance of weewx?


On Sat, Oct 3, 2026 at 8:21 AM bushtech <[email protected]> wrote:

> Thanks again
> Running weewx status again, seem changed
>
> weewx.service - WeeWX
>      Loaded: loaded (/usr/lib/systemd/system/weewx.service; enabled;
> preset: enabled)
>      Active: failed (Result: exit-code) since Sat 2026-10-03 17:03:21
> SAST; 16min ago
>    Duration: 6.924s
>  Invocation: c7dde2bbcbf74fd5bc98388f26395f8a
>        Docs: https://weewx.com/docs
>     Process: 1987 ExecStart=weewxd /etc/weewx/weewx.conf (code=exited,
> status=4)
>    Main PID: 1987 (code=exited, status=4)
>    Mem peak: 24.8M
>         CPU: 279ms
> Oct 03 17:03:21 Ubuntuserver weewxd[1987]: CRITICAL weewx.engine:     ****
>    File "/usr/share/weewx/weewx/drivers/vantage.py", line 1468, in _setup
> Oct 03 17:03:21 Ubuntuserver weewxd[1987]: CRITICAL weewx.engine:     ****
>      self.hardware_type = self._determine_hardware()
> Oct 03 17:03:21 Ubuntuserver weewxd[1987]: CRITICAL weewx.engine:     ****
>                           ~~~~~~~~~~~~~~~~~~~~~~~~^^
> Oct 03 17:03:21 Ubuntuserver weewxd[1987]: CRITICAL weewx.engine:     ****
>    File "/usr/share/weewx/weewx/drivers/vantage.py", line 1459, in
> _determine_har>
> Oct 03 17:03:21 Ubuntuserver weewxd[1987]: CRITICAL weewx.engine:     ****
>      raise weewx.WeeWxIOError(msg)
> Oct 03 17:03:21 Ubuntuserver weewxd[1987]: CRITICAL weewx.engine:     ****
>  weewx.WeeWxIOError: Unable to read hardware type. Check for 2nd instance
> of weew>
> Oct 03 17:03:21 Ubuntuserver weewxd[1987]: CRITICAL __main__: Unable to
> load driver: Unable to read hardware type. Check for 2nd instance of weewx.
> Also, tr>
> Oct 03 17:03:21 Ubuntuserver weewxd[1987]: CRITICAL __main__:     ****
>  Exiting...
> Oct 03 17:03:21 Ubuntuserver systemd[1]: weewx.service: Main process
> exited, code=exited, status=4/NOPERMISSION
> Oct 03 17:03:21 Ubuntuserver systemd[1]: weewx.service: Failed with result
> 'exit-code'.
> lines 1-21/21 (END)
>
> Now complaining about vantage.py
>
> Here is line 1468
> 1468             self.hardware_type = self._determine_hardware()
> and line 1459:
> 1459         raise weewx.WeeWxIOError(msg)
> This was listed with nano -l
> Doesnt mean much to me
> On Saturday, October 3, 2026 at 3:59:42 PM UTC+2 John Smith wrote:
>
>> Start with the simple stuff, reconnect everything and check dmesg to see
>> if everything is detected properly when reconnected.
>>
>> I assume everything was working up until you installed the new Ubuntu
>> version, so it could be a bug/issue in the new kernel, so maybe try
>> downgrading the kernel and/or trying a back ported version if there is one.
>>
>> It could also be a cable issue, do you have a space to try?
>>
>> On Sat, 3 Oct 2026 at 23:16, bushtech <[email protected]> wrote:
>>
>>> Thanks again John
>>> No reply out of the minicom or screen test
>>> Hmmm
>>> On Saturday, October 3, 2026 at 2:59:42 PM UTC+2 John Smith wrote:
>>>
>>>> Ok, weewxd now owned by user weewx, was root.
>>>>
>>>>
>>>> Has been since version 5.0.0 came out
>>>>
>>>>  Oct 03 14:23:52 Ubuntuserver weewxd[1986]: ERROR
>>>>> weewx.drivers.vantage: send_data: no <ACK> received from Vantage cons
>>>>
>>>>
>>>> There is a wiki page for that too
>>>> https://github.com/weewx/weewx/wiki/Troubleshooting-the-Davis-Vantage-station
>>>>
>>>> On Sat, 3 Oct 2026 at 22:50, bushtech <[email protected]> wrote:
>>>>
>>>>> Hi John
>>>>> Thanks a mil for your response.  Ok, weewxd now owned by user weewx,
>>>>> was root. And did this: sudo usermod -aG dialout weewx to try and sort out
>>>>> the USB. No discernable difference noted
>>>>>
>>>>> Then ran:  sudo journalctl -u weewx -n 50 --no-pager
>>>>>
>>>>> Oct 03 14:23:52 Ubuntuserver weewxd[1986]: DEBUG
>>>>> weewx.drivers.vantage: Successfully woke up Vantage console
>>>>>
>>>>> Oct 03 14:23:52 Ubuntuserver weewxd[1986]: ERROR
>>>>> weewx.drivers.vantage: send_data: no <ACK> received from Vantage cons
>>>>> The second line is where the wheels came off.
>>>>> Hmmm, lots of head scratching currently
>>>>> On Saturday, October 3, 2026 at 1:34:20 PM UTC+2 John Smith wrote:
>>>>>
>>>>>> status=4/NOPERMISSION
>>>>>>
>>>>>>
>>>>>> That pretty much says it all, weewxd doesn't have permission to
>>>>>> access the USB device.
>>>>>>
>>>>>> Have you looked at this page?
>>>>>> https://github.com/weewx/weewx/wiki/Understanding-permissions
>>>>>>
>>>>>> It has a section on USB permissions
>>>>>>
>>>>>> On Sat, 3 Oct 2026 at 18:14, bushtech <[email protected]> wrote:
>>>>>>
>>>>>>> Hi
>>>>>>> Conf. file 5.5.2
>>>>>>> Davis Vantage pro using USB to serial cable
>>>>>>> During ubuntu update got the usual conf file out of date so kept old
>>>>>>> one. But afterwards
>>>>>>> decided to use later conf. file.
>>>>>>>
>>>>>>> What worries me is Ubuntu 26 uses python 3.14.
>>>>>>>
>>>>>>> The weewx documentation says this:
>>>>>>>
>>>>>>> *"Python*
>>>>>>> Python 2.7, or Python 3.5 or later is required."
>>>>>>>
>>>>>>> Am I between a rock and a hard place or am I being stupid
>>>>>>>
>>>>>>> This is what I get when doing sudo systemctl status weewx:
>>>>>>>
>>>>>>> Oct 02 16:05:12 Ubuntuserver weewxd[19832]: CRITICAL weewx.engine:
>>>>>>> **** File "/usr/share/weewx/weewx/drivers/v> Oct 02 16:05:12 
>>>>>>> Ubuntuserver
>>>>>>> weewxd[19832]: CRITICAL weewx.engine: **** self.hardware_type =
>>>>>>> self._determine> Oct 02 16:05:12 Ubuntuserver weewxd[19832]: CRITICAL
>>>>>>> weewx.engine: **** ~~~~~~~~~~~~~~~> Oct 02 16:05:12 Ubuntuserver
>>>>>>> weewxd[19832]: CRITICAL weewx.engine: **** File
>>>>>>> "/usr/share/weewx/weewx/drivers/v> Oct 02 16:05:12 Ubuntuserver
>>>>>>> weewxd[19832]: CRITICAL weewx.engine: **** raise
>>>>>>> weewx.WeeWxIOError(msg) Oct 02 16:05:12 Ubuntuserver weewxd[19832]:
>>>>>>> CRITICAL weewx.engine: **** weewx.WeeWxIOError: Unable to read hardw> 
>>>>>>> Oct
>>>>>>> 02 16:05:12 Ubuntuserver weewxd[19832]: CRITICAL *main*: Unable to
>>>>>>> load driver: Unable to read hardware type. C> Oct 02 16:05:12 
>>>>>>> Ubuntuserver
>>>>>>> weewxd[19832]: CRITICAL *main*: **** Exiting... Oct 02 16:05:12
>>>>>>> Ubuntuserver systemd[1]: weewx.service: Main process exited, 
>>>>>>> code=exited,
>>>>>>> status=4/NOPERMISSION Oct 02 16:05:12 Ubuntuserver systemd[1]:
>>>>>>> weewx.service: Failed with result 'exit-code'.
>>>>>>>
>>>>>>> Please tell me what is gong on here. Is this a hardware problem now
>>>>>>> Am I missing something stupid
>>>>>>>
>>>>>>> --
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>>>>>>>
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>>>>> .
>>>>>
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>>>
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