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Dump1090 mutability 1-15 on Mint linux

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  • #16
    ...about 4 times per second:

    Apr 05 20:27:07 T510 systemd[1]: Starting Lighttpd Daemon...
    Apr 05 20:27:07 T510 lighttpd[2686]: /usr/sbin/lighttpd: Symbol `FamErrlist' has different size in shared object, consider re-linking
    Apr 05 20:27:07 T510 lighttpd[2686]: /usr/sbin/lighttpd: symbol lookup error: /usr/sbin/lighttpd: undefined symbol: FAMNoExists
    Apr 05 20:27:07 T510 systemd[1]: lighttpd.service: Control process exited, code=exited status=127
    Apr 05 20:27:07 T510 systemd[1]: lighttpd.service: Failed with result 'exit-code'.
    Apr 05 20:27:07 T510 systemd[1]: Failed to start Lighttpd Daemon.
    Apr 05 20:27:07 T510 systemd[1]: lighttpd.service: Service hold-off time over, scheduling restart.
    Apr 05 20:27:07 T510 systemd[1]: lighttpd.service: Scheduled restart job, restart counter is at 1.
    Apr 05 20:27:07 T510 systemd[1]: Stopped Lighttpd Daemon.
    Apr 05 20:27:07 T510 systemd[1]: Starting Lighttpd Daemon...
    What is FAMNoExists ?

    root@T510:/etc/lighttpd# ls /etc/lighttpd/conf-enabled
    89-dump1090.conf
    root@T510:/etc/lighttpd#
    Last edited by Space Pilot; 2019-04-06, 09:54.

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    • #17
      Mint right?

      It's disto specific https://bugs.launchpad.net/ubuntu/+s...d/+bug/1453463

      Try installing gamin as mentioned there

      Sent from my EML-L09 using Tapatalk
      Posts not to be taken as official support representation - Just a helpful uploader who tinkers

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      • #18
        Upgrading might help as well.

        sudo apt-get update
        sudo apt-get upgrade
        sudo apt-get dist-upgrade

        Edit: Oh gamin is not a webserver, i just assumed
        Linked library fun!
        Last edited by wiedehopf; 2019-04-06, 11:28.

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        • #19
          Ok, I see, dump1090-mutability is not for Linux Mint. I'll be back with RPI questions shortly :-)

          Thanks for your patience.

          ps
          first RPI question: I've got an old Raspberry Pi 1 B with Raspbian Stretch installed and maybe an FR24 feeder of that time. Is the Pi 1 B still good enough for dump1090-mutability?

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          • #20
            Originally posted by Space Pilot View Post
            Ok, I see, dump1090-mutability is not for Linux Mint. I'll be back with RPI questions shortly :-)

            Thanks for your patience.

            ps
            first RPI question: I've got an old Raspberry Pi 1 B with Raspbian Stretch installed and maybe an FR24 feeder of that time. Is the Pi 1 B still good enough for dump1090-mutability?
            Huh?

            Did you follow abcd4567 link earlier - Dump1090 is obviously working on Mint? That is reasonably cross platform. But your latest issue is the web page hosting dump1090s web portal isn't it. And I linked to a page that shows why, and the commands/other users who have experienced it and installed gamin
            Posts not to be taken as official support representation - Just a helpful uploader who tinkers

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            • #21
              As for testing if dump1090 is fine.

              sudo service dump1090-mutability stop
              sudo dump1090-mutability --interactive

              It will soon tell you if it's working with the stick
              Posts not to be taken as official support representation - Just a helpful uploader who tinkers

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              • #22
                ok, let's give Mint another try.

                apt install gamin

                what next? How should I start it?

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                • #23
                  Originally posted by Space Pilot View Post
                  ok, let's give Mint another try.

                  apt install gamin

                  what next? How should I start it?
                  sudo service lighttpd restart

                  And then repeat

                  https://forum.flightradar24.com/thre...l=1#post117912
                  Posts not to be taken as official support representation - Just a helpful uploader who tinkers

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                  • #24
                    sorry replying out of phase:

                    sudo service dump1090-mutability stop
                    sudo dump1090-mutability --interactive

                    usb_claim_interface error -6
                    Error opening the RTLSDR device: Device or resource busy
                    Last edited by Space Pilot; 2019-04-06, 11:55.

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                    • #25
                      USB device in use. So either it didn't stop per the first line (sudo service dump1090-mutability stop), or you also have the FR24feed bundle/separate USB hoggging package installed taking over as soon as it does.
                      Posts not to be taken as official support representation - Just a helpful uploader who tinkers

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                      • #26
                        I don't have installed FR24feed on this laptop.

                        from https://bugs.launchpad.net/ubuntu/+s.../+bug/1453463:

                        FIX:
                        sudo apt-get install gamin

                        Please, add dependency of "gamin" to "lighttpd" package or remove dependency of gamin from lighttpd code.
                        Bug Watch Updater (bug-watch-updater) on 2019-02-23
                        Changed in lighttpd:
                        status: Unknown → Fix Released
                        What does this mean to me? Would it make sense to apt remove lighttpd and then apt install lighttpd again? Ot both lighttpd and gamin?
                        Last edited by Space Pilot; 2019-04-06, 12:18.

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                        • #27
                          lighttpd needs gamin to work.

                          so install both.

                          Anyway the usb_claim error occurs when another copy of dump1090-mutability or another dump1090 variety is already running.
                          (Or by using the receiver wiht other software)

                          If you get that error you can check if dump1090 is still running with this command:

                          pgrep -fa

                          But that interactive thing was just to make sure dump1090 is working, not about the webpage.

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                          • #28
                            Don't even touch lighttpd now until you can confirm you are even getting data it can use. However the earlier fix should have sorted it from not starting. You can still run the command wiedehopf suggested (and I) to restart lighttpd and see if it starts now.

                            But the whole thing won't go if dump1090 doesn't too

                            You need to understand what you are attempting to do (somewhat explained in abcds guide) vs just following commands here and there.

                            They are all separate programs

                            Dump10900-mutability - connect to stick, read data

                            lighttpd - create server, allow files made by dump1090 to view in web browser


                            If dump1090 cant run, And lighttpd cant start. You won't be going far at all.

                            So you need to work out why dump1090-mutability can't access the USB stick. Or find it's correct running status as it is, right now.

                            https://forum.flightradar24.com/thre...ll=1#post74851

                            And once that is working. See if lighttpd can now restart with the earlier fix, and show the traffic it is getting on a webpage.
                            Posts not to be taken as official support representation - Just a helpful uploader who tinkers

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                            • #29
                              Something is happening beyond my control. As I was closing some browser pages I realized the web display - be it lighttpd or gamin - is working!

                              I see Open Street Map, Switzerland centered, no planes. and this message:

                              Problem fetching data from dump1090.
                              AJAX call failed (error: Not Found). Maybe dump1090 is no longer running?
                              The displayed map data will be out of date.
                              I got to leave my desk right now, will be back in a few hours.

                              SpacePilot

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                              • #30
                                Originally posted by Space Pilot View Post
                                Something is happening beyond my control. As I was closing some browser pages I realized the web display - be it lighttpd or gamin - is working!

                                I see Open Street Map, Switzerland centered, no planes. and this message:



                                I got to leave my desk right now, will be back in a few hours.

                                SpacePilot
                                gamin is nothing to do with lighttpd, but another program/addon that has files in it needed to run lighttpd on non standard linux (Mint) that are missing things

                                And as such, is needed for lighttpd to start. So that confirms the web server (lighttpd) is now working - this also works independently of Dump1090

                                Which is why I mentioned with the dump1090 error occurring, You won't get any data, unless dump1090 is the sole USB stick user.

                                The give away is aybe dump1090 is no longer running?
                                Posts not to be taken as official support representation - Just a helpful uploader who tinkers

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