Manjaro - help seeing data from Vantage Pro 2

[Henri Emurian]

I am new to Linux and recently installed Manjaro. My old operating system is Windows 7. I have a Vantage Pro 2 station which is connected via USB. On Windows 7 I used the WeatherLink software from Davis. That gave me my data by clicking the executable. 

I read the user guide for Weewx and installed it using the Python utility Setup.py. The install seemed to go well, although I was not sure which port to choose (I chose the default ttyUSB0). No error messages came up.

To run the program directly, I use cd /home/weewx, then sudo ./bin/weewxd. When I execute this command, nothing happens. The cursor just goes to the command line. There is no indication that data is being downloaded from the station. My question is, how do I know whether data is being downloaded, and how do I see my data, charts, etc? I have read the user manual and found nothing which would help. TIA for any assistance.

[mwall]

On Tuesday, June 9, 2020 at 2:31:29 PM UTC-4, Henri Emurian wrote:

To run the program directly, I use cd /home/weewx, then sudo ./bin/weewxd. When I execute this command, nothing happens. The cursor just goes to the command line. There is no indication that data is being downloaded from the station. My question is, how do I know whether data is being downloaded, and how do I see my data, charts, etc?

try tailing the log file in one shell as you invoke weewx in another:

sudo tail -f /var/log/messages

it might be /var/log/syslog - its been awhile since i used manjaro

if you still do not see any output, the set 'debug=1' in the weewx.conf configuration file, then try again

m

[Henri Emurian]

Thanks for your response. I set debut=1 and tried both commands, and both give me this: tail: cannot open '/var/log/messages' for reading: No such file or directory

tail: no files remaining 

and tail: cannot open '/var/log/syslog' for reading: No such file or directory

tail: no files remaining

In the file structure, I do have var/log/ but no messages or syslog in the file. Any other ideas?

On Tuesday, June 9, 2020 at 2:31:29 PM UTC-4, Henri Emurian wrote:

[mwall]

On Thursday, June 11, 2020 at 12:20:40 PM UTC-4, Henri Emurian wrote:

In the file structure, I do have var/log/ but no messages or syslog in the file. Any other ideas?

you could try 'journalctl' - that is the systemd approach to reading log files.  since arch/manjaro have been completely taken over by systemd that could be the problem.

but you might have to install/enable syslog-ng

something like

sudo pacman -S syslog-ng

sudo systemctl enable syslog-ng

sudo systemctl start syslog-ng

should do it

m

[Henri Emurian]

Thanks for the help mwall. Journalctl does show me log data, but the amount of data is voluminous, and I can't find any logs on weewx. Is there a way to filter the results so that I can see the weewx logs? As for syslog, I tried 'sudo pacman -S syslog-ng',but it didn't return anything. It appeared to be looking for syslog to install, but each attempt gave error 404. 

[vince]

On Thursday, June 11, 2020 at 4:00:24 PM UTC-7, Henri Emurian wrote:

Thanks for the help mwall. Journalctl does show me log data, but the amount of data is voluminous, and I can't find any logs on weewx. Is there a way to filter the results so that I can see the weewx logs? As for syslog, I tried 'sudo pacman -S syslog-ng',but it didn't return anything. It appeared to be looking for syslog to install, but each attempt gave error 404. 

Run the command and pipe it to "grep -i weewx"

 

[Henri Emurian]

Hi Vince, I ran the journalctl command but don't know how to pipe it to the grep command you provided. I tried running it in a second terminal but to no avail. I researched the grep command and saw some syntax examples, but none of them seemed to apply. Thank you for your input. 

On Tuesday, June 9, 2020 at 2:31:29 PM UTC-4, Henri Emurian wrote:

[mwall]

On Thursday, June 11, 2020 at 8:29:43 PM UTC-4, Henri Emurian wrote:

Hi Vince, I ran the journalctl command but don't know how to pipe it to the grep command you provided. I tried running it in a second terminal but to no avail. I researched the grep command and saw some syntax examples, but none of them seemed to apply. Thank you for your input. 

henri,

a linux 'pipe' is one way to send the output from one program to another.  it is indicated using the vertial bar character: |

so to pipe the output from journalctl into grep, you would do this:

journalctl | grep -i weewx

the string 'weewx' is what you are looking for, and the '-i' option says "ignore case"

actually, you must do this:

sudo journalctl | grep -i weewx

because systemd forces you to have escalated privileges in order to read the systemd version of system logs.

if you install syslog-ng then you will get the standard unix logs, which are plain text.

journalctl is the systemd way of logging - it is copying the way windows does logging, by cramming everything into a single binary blob that is much more difficult to work with and more prone to failure than the standard unix approach.  journalctl is another example of how systemd is taking over the linux ecosystem, and not in a good way.  (apologies for the editorials.  or not.)

m

[John Kline]

Please give the following a try:

journalctl -f _SYSTEMD_UNIT=weewx.service

On Jun 11, 2020, at 5:29 PM, Henri Emurian <emur...@gmail.com> wrote:



--
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/2f7bdee3-055f-4539-9f2d-82fc311788c0o%40googlegroups.com.

[Henri Emurian]

Thanks much for the info. Here is the log data:

Jun 10 09:34:34 mel-pc pkexec[2418]: mel: Executing command [USER=root] [TTY=unknown] [CWD=/home] [COMMAND=/usr/bin/thunar /home/weewx]

Jun 10 09:34:34 mel-pc dbus-daemon[2438]: [session uid=0 pid=2436] Activating service name='org.xfce.Xfconf' requested by ':1.0' (uid=0 pid=2418 comm="/usr/bin/thunar /home/weewx " label="unconfined")

Jun 10 09:34:34 mel-pc dbus-daemon[2438]: [session uid=0 pid=2436] Activating service name='org.freedesktop.portal.Desktop' requested by ':1.0' (uid=0 pid=2418 comm="/usr/bin/thunar /home/weewx " label="unconfined")

Jun 10 09:34:34 mel-pc dbus-daemon[2438]: [session uid=0 pid=2436] Activating service name='org.freedesktop.thumbnails.Thumbnailer1' requested by ':1.0' (uid=0 pid=2418 comm="/usr/bin/thunar /home/weewx " label="unconfined")

Jun 10 16:17:01 mel-pc sudo[9168]:     root : TTY=pts/0 ; PWD=/home/weewx ; USER=root ; COMMAND=./bin/weewxd

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] INFO __main__: Initializing weewx version 4.1.0

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] INFO __main__: Using Python 3.8.2 (default, Apr  8 2020, 14:31:25) 

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] INFO __main__: Platform Linux-5.4.40-1-MANJARO-x86_64-with-glibc2.2.5

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] INFO __main__: Locale is 'LC_CTYPE=en_US.utf8;LC_NUMERIC=en_US.UTF-8;LC_TIME=en_US.UTF-8;LC_COLLATE=en_US.utf8;LC_MONETARY=en_US.UTF-8;LC_MESSAGES=en_US.utf8;LC_PAPER=en_US.UTF-8;LC_NAME=en_US.UTF-8;LC_ADDRESS=en_US.UTF-8;LC_TELEPHONE=en_US.UTF-8;LC_MEASUREMENT=en_US.UTF-8;LC_IDENTIFICATION=en_US.UTF-8'

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] INFO __main__: Using configuration file /home/weewx/weewx.conf

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] INFO __main__: Debug is 1

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] DEBUG __main__: Initializing engine

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] INFO weewx.engine: Loading station type Vantage (weewx.drivers.vantage)

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] DEBUG weewx.drivers.vantage: Driver version is 3.2.1

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] ERROR weewx.engine: Import of driver failed: No module named 'serial' (<class 'ModuleNotFoundError'>)

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] CRITICAL weewx.engine:     ****  Traceback (most recent call last):

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] CRITICAL weewx.engine:     ****    File "/home/weewx/bin/weewx/engine.py", line 103, in setupStation

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] CRITICAL weewx.engine:     ****      self.console = loader_function(config_dict, self)

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] CRITICAL weewx.engine:     ****    File "/home/weewx/bin/weewx/drivers/vantage.py", line 39, in loader

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] CRITICAL weewx.engine:     ****      return VantageService(engine, config_dict)

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] CRITICAL weewx.engine:     ****    File "/home/weewx/bin/weewx/drivers/vantage.py", line 1897, in __init__

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] CRITICAL weewx.engine:     ****      Vantage.__init__(self, **config_dict[DRIVER_NAME])

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] CRITICAL weewx.engine:     ****    File "/home/weewx/bin/weewx/drivers/vantage.py", line 511, in __init__

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] CRITICAL weewx.engine:     ****      self.port.openPort()

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] CRITICAL weewx.engine:     ****    File "/home/weewx/bin/weewx/drivers/vantage.py", line 305, in openPort

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] CRITICAL weewx.engine:     ****      import serial

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] CRITICAL weewx.engine:     ****  ModuleNotFoundError: No module named 'serial'

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] CRITICAL __main__: Unable to load driver: No module named 'serial'

Jun 10 16:17:02 mel-pc weewxd[9169]: weewx[9169] CRITICAL __main__:     ****  Exiting...

I see that weewx is unable to load the driver because it cannot find a module named 'serial'. My station is connected to my computer via USB, and in setup the instructions said to use 'serial' for that connection. I don't know what to do next. Is it because I chose ttyusb0 and I should choose a different one, and if so, how do I know which one? I appreciate all of the help.

On Tuesday, June 9, 2020 at 2:31:29 PM UTC-4, Henri Emurian wrote:

[Henri Emurian]

I discovered that using the python install method, which I have to use for Manjaro, does not include the python serial module. It was in the repository, and once I installed it, weewx downloaded data in terminal. Now that I have the data, how do I see graphs and charts. Does that require an extension or is there something else I need to install? Thanks. I will research this to see if I can figure it out, but any advice is welcome.

On Tuesday, June 9, 2020 at 2:31:29 PM UTC-4, Henri Emurian wrote: