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

Paul
On Tuesday 30 January 2024 at 18:51:01 UTC Tom Keffer wrote:

> Oops. I put it under the wrong thread!
>
> Apologies.
>
> On Tue, Jan 30, 2024 at 7:55 AM matthew wall <[email protected]> wrote:
>
>>
>>
>> On Tuesday, January 30, 2024 at 10:36:47 AM UTC-5 [email protected] wrote:
>>
>> Paul, take a look at Issue #917 
>> <https://github.com/weewx/weewx/issues/917#issuecomment-1895917342> and 
>> see if that solves your problem.
>>
>> Short answer: check the contents of /etc/default/weewx and make sure it 
>> points to Python 3.6 or greater.
>>
>>
>> tom, i think you confused issues.  the python2/python3 affects the dpkg 
>> version check.  
>>
>> this issue is about the udev file.  there was a problem with the 
>> redhat/suse scriptlet that has been fixed:
>>
>>
>> https://github.com/weewx/weewx/commit/b32ca4069e519a50dce636d6c8730958b0c1cb00
>>
>> the issue in this thread appears to use debian-based install, so 
>> something else is going on here.
>>
>> m
>>
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