I had this same issue immediately after updating from 5.0.0 to 5.0.1, the exact same error.
*sudo lsof /dev/ttyUSB0* threw an error. I rebooted the machine and now weewx is running normally again. On Monday, February 5, 2024 at 7:03:18 AM UTC-6 Tom Keffer wrote: > Make sure there isn't another process claiming /dev/ttyUSB0. The process > "modemmanager" is a common one. > > To see what processes are using /dev/ttyUSB0 try > > *sudo lsof /dev/ttyUSB0* > > > -tk > > On Sun, Feb 4, 2024 at 11:40 PM hb9...@gmail.com <hb9...@gmail.com> wrote: > >> I get a permission error for /dev/ttyUSB0 >> However, there should be no problem accessing ttyUSB0 (Vantage driver) >> weectl device --info runs just fine: >> ----------------------------------------------- >> # weectl device --info >> Using configuration file /etc/weewx/weewx.conf >> Using driver weewx.drivers.vantage. >> Using Vantage driver version 3.6.2 (weewx.drivers.vantage) >> Querying... >> Davis Vantage EEPROM settings: >> >> CONSOLE TYPE: Vantage Vue >> (etc.) >> ----------------------------------------------- >> >> >> × weewx.service - WeeWX >> Loaded: loaded (/lib/systemd/system/weewx.service; enabled; preset: >> enabled) >> Active: failed (Result: exit-code) since Mon 2024-02-05 08:31:01 >> CET; 2s ago >> Duration: 100ms >> Docs: https://weewx.com/docs >> Process: 2627140 ExecStart=weewxd /etc/weewx/weewx.conf (code=exited, >> status=4) >> Main PID: 2627140 (code=exited, status=4) >> CPU: 89ms >> >> Feb 05 08:31:01 weewxd[2627140]: CRITICAL weewx.engine: **** >> >> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ >> Feb 05 08:31:01 weewxd[2627140]: CRITICAL weewx.engine: **** File >> "/usr/lib/python3/dist-packages/serial/serialutil.py", line 244, in __init__ >> Feb 05 08:31:01 weewxd[2627140]: CRITICAL weewx.engine: **** >> self.open() >> Feb 05 08:31:01 weewxd[2627140]: CRITICAL weewx.engine: **** File >> "/usr/lib/python3/dist-packages/serial/serialposix.py", line 325, in open >> Feb 05 08:31:01 weewxd[2627140]: CRITICAL weewx.engine: **** >> raise SerialException(msg.errno, "could not open port {}: >> {}".format(self._port, msg)) >> Feb 05 08:31:01 weewxd[2627140]: CRITICAL weewx.engine: **** >> serial.serialutil.SerialException: [Errno 16] could not open port >> /dev/ttyUSB0: [Errno 16] Device or resource busy: '/dev/ttyUSB0' >> Feb 05 08:31:01 weewxd[2627140]: CRITICAL __main__: Unable to load >> driver: [Errno 16] could not open port /dev/ttyUSB0: [Errno 16] Device or >> resource busy: '/dev/ttyUSB0' >> Feb 05 08:31:01 weewxd[2627140]: CRITICAL __main__: **** Exiting... >> Feb 05 08:31:01 systemd[1]: weewx.service: Main process exited, >> code=exited, status=4/NOPERMISSION >> Feb 05 08:31:01 systemd[1]: weewx.service: Failed with result 'exit-code'. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "weewx-user" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to weewx-user+...@googlegroups.com. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/weewx-user/8fc2aaad-705d-45ff-9e1b-f2a80b84d48dn%40googlegroups.com >> >> <https://groups.google.com/d/msgid/weewx-user/8fc2aaad-705d-45ff-9e1b-f2a80b84d48dn%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/ab85fb93-ee80-4444-a29f-aae52483264bn%40googlegroups.com.
