Hi Vince, et al,
Yes, all working well. I was looking at it, from a device permissions
point-of-view. Software weewx, for some reason, no-longer had rights to,
in my case /dev/ttyUSB0 (which has been working for 11 years). Ownership
of the device were set to root:dialout (as are the serial ports). I saw
that weewx was running as user weewx (hmm, don't recall that...). User
weewx was a member of group weewx, so amended the device ownership to:
root:weewx.
Cheers, Jason.
On Tuesday 20 February 2024 at 17:10:27 UTC+11 vince wrote:
> Is it working now ? What thoughts are you looking for in particular ?
>
> On Monday, February 19, 2024 at 5:47:48 PM UTC-8 Jason Patton wrote:
>
>> Hello All,
>> After trying to pick-up the pieces of a borked upgrade, I just
>> encountered the same 'could not open port /dev/ttyUSB0'. Entirely possible
>> that I've missed documentation somewhere, but is would seem that weewx, is
>> now running as usr:grp weewx:weewx (which is where the upgrade script
>> borked, setting user permissions)? My fix was amending permissions on:
>> '/dev/ttyUSB0' to: root:weewx, and weewx started fine. Until, it tried to
>> write the HTML, where weewx no-longer had permissions. Upon granting weewx
>> permission to that folder / sub-folders, all seems well. Thoughts, anyone?
>>
>> Best regards, Jason.
>>
>> On Sunday 11 February 2024 at 07:36:30 UTC+11 Joseph Verreau wrote:
>>
>>> p.p.s I just noticed that I didn't have the subsystem prefix on my
>>> rule. So my entry in 50-localusb.rules is:
>>> SUBSYSTEM=="tty",ATTRS{serial}=="1344794749",
>>> ATTRS{manufacturer}=="Silicon Labs", SYMLINK+="DavisVP"
>>> and I rebooted; altho I still don't have a symlink for /dev/DavisVP
>>> all the same my station is back online, submitting reports to all three
>>> configured weather services
>>>
>>> On Saturday, February 10, 2024 at 3:22:52 PM UTC-5 Joseph Verreau wrote:
>>>
>>>> p.s. just noticed I'm not getting a symlink for the DavisVP rule but I
>>>> haven't rebooted since I added that local rule.
>>>>
>>>> Joe Verreau
>>>>
>>>> On Saturday, February 10, 2024 at 3:05:41 PM UTC-5 Joseph Verreau wrote:
>>>>
>>>>> hmm. this seems to be my issue on installing 5.0.0 following erasing
>>>>> 4.10. On my own I tried adding weewx user to the wheel group and to
>>>>> sudoers file. I tried what Matt and Paul were discussing about rule
>>>>> changes and yet I still get the "ERROR weewx.engine: Import of driver
>>>>> failed: [Errno 13] could not open port /dev/ttyUSB0: [Errno 13]
>>>>> Permission
>>>>> denied:" When I run as root from command line all seems to be good.
>>>>> Should I do a full report with journal log?
>>>>>
>>>>> Joe Verreau KMIOKEMO13
>>>>> Okemos, MI
>>>>>
>>>>> On Wednesday, January 31, 2024 at 11:09:41 AM UTC-5 matthew wall wrote:
>>>>>
>>>>>> On Wednesday, January 31, 2024 at 3:29:36 AM UTC-5 [email protected]
>>>>>> wrote:
>>>>>>
>>>>>> Hi Matthew
>>>>>>
>>>>>> Thanks for the information about the various udev folders which helps
>>>>>> me understand their interaction.
>>>>>>
>>>>>> I created a file /etc/udev/50-localusb.rules and inserted the rule.
>>>>>> Also, inherited from Linux Mint 20.1 running Weewx 4.8, I also have the
>>>>>> following line in /etc/udev/descriptive-names.rules
>>>>>>
>>>>>> ATTRS{serial}=="1344794749", ATTRS{manufacturer}=="Silicon Labs",
>>>>>> SYMLINK+="DavisVP"
>>>>>>
>>>>>> and that SYMLINK is created.
>>>>>>
>>>>>> /usr/lib/udev/rules.d/60-weewx.rules contains 10+ lines for different
>>>>>> stations and includes the following for Vantage:
>>>>>>
>>>>>> # davis vantage via usb-serial
>>>>>>
>>>>>> SUBSYSTEM=="tty",ATTRS{idVendor}=="10c4",ATTRS{idProduct}=="ea60",MODE="0664",GROUP="weewx",SYMLINK+="vantage"
>>>>>>
>>>>>> SUBSYSTEM=="tty",ATTRS{idVendor}=="10c4",ATTR{idProduct}=="ea61",MODE="0664",GROUP="weewx",SYMLINK+="vantage"
>>>>>>
>>>>>> The vantage SYMLINK is not being created.
>>>>>>
>>>>>> Not sure if I should leave 'as is' or edit 60-weewx.rules and remove
>>>>>> 50-localusb.rules
>>>>>>
>>>>>>
>>>>>> you can keep your 50-localusb.rules. you might want to consolidate
>>>>>> the vpro rule in localusb.rules with the vpro rule in
>>>>>> descriptive-names.rules. or not. depends on how you like to manage
>>>>>> things. and your weewx.conf must already refer to 'DavisVP'...
>>>>>>
>>>>>> if you modify /usr/lib/udev/rules.d/60-weewx.rules, it will be
>>>>>> overwritten when you next upgrade weewx, so just leave it.
>>>>>>
>>>>>> on your system, is there a /dev/vantage that is a symlink to the
>>>>>> usb-serial adapter? if so, that indicates the weewx.rules in
>>>>>> /usr/lib/udev
>>>>>> is working.
>>>>>>
>>>>>> m
>>>>>>
>>>>>
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