what does the log say during this boot / stop / start procedure??
On Friday, 25 November 2016 17:01:55 UTC+2, Jon Adams wrote:
> I know this thread has been dormant for some time, and I don't see that a
> solution has been determined, but I've got the same problem with my weewx
> install on an RPi3, and it's been a bit frustrating.
>
> The RPi is on battery backup, so glitches in AC don't impact it, but
> still, when for some reason I have to reboot it, I have to start the weewx
> service, then stop it, then restart it before it will actually launch
> successfully. My other programs queued to autostart seem to behave alright,
> the webserver and ftp server come up fine.
>
> Setup is RPi3 running Debian 8.0, uname shows: Linux raspberrypi
> 4.4.21-v7+ #911 SMP Thu Sep 15 14:22:38 BST 2016 armv7l GNU/Linux
> Uses a Pi drive (rotating) to prevent early demise of the NVRAM.
> Davis VantagePro2 wired with IP connection.
> Running weewx 3.5.0
>
> At least on my build, there is no modemmanager,
>
> Similar to W7JBG's situation, after boot up, there's no python or weewx in
> top or ps aux | grep ---
>
> Again, after boot up, I can issue a
> sudo /etc/init.d/weewx start
> and there's no record of it in the running processes.
> if I then issue a
> sudo /etc/init.d/weewx stop
>
> there's no delay in the prompt returning.
> Then, i issue
> sudo /etc/init.d/weewx start
>
> and this time both python and weewx are found as one of the running
> processes.
>
> Has this been resolved?
>
> Cheers and 73 - Jon N7UV
>
>
> On Saturday, February 13, 2016 at 2:40:34 PM UTC-7, Tom Keffer wrote:
>>
>> Yes, that's true, but it's easier to teach a user how to nuke
>> modemmanager than to mess with UDEV rules.
>>
>> But, hey, do you know anything about upstart?
>>
>> -tk
>>
>> On Sat, Feb 13, 2016 at 1:20 PM, P Simmons <mbat...@gmail.com> wrote:
>>
>>>
>>>
>>> On Saturday, February 13, 2016 at 1:14:51 PM UTC-6, Tom Keffer wrote:
>>>>
>>>> There is very definitely something of interest in the log files, namely
>>>> the line,
>>>>
>>>> Feb 13 16:07:02 trimslice weewx[1872]: engine: Unable to load driver:
>>>> [Errno 11] Resource temporarily unavailable
>>>>
>>>> Unless you actually have a modem, try removing modemmanager
>>>>
>>>> sudo apt-get remove modemmanager
>>>>
>>>>
>>>> It's looking for a modem at /dev/ttyUSB0 and competing with weewx.
>>>> Eventually it gives up and relinquishes the port, but not until after
>>>> weewx
>>>> exits.
>>>>
>>>>
>>>>
>>> Hey there, Tom... if there's a udev rule for the USB device, one can add
>>> *ENV{ID_MM_DEVICE_IGNORE}="1"* to the rule, and modemmanager will leave
>>> it alone.
>>>
>>> Best,
>>> Paul
>>>
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>>
>>
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