Traccar server on Raspberry Pi 4
Yes, it actually is! I stand corrected! :)
please find below a copy of my actions to start traccar:
raoul@Raspberry:~/Downloads/traccar-linux-arm-4.12$ sudo ./traccar.run
[sudo] password for raoul:
Creating directory out
Verifying archive integrity... 100% All good.
Uncompressing traccar 100%
Created symlink /etc/systemd/system/multi-user.target.wants/traccar.service → /etc/systemd/system/traccar.service.
raoul@Raspberry:~/Downloads/traccar-linux-arm-4.12$ cd
raoul@Raspberry:~$ sudo systemctl start traccar
raoul@Raspberry:~$ cd /opt/traccar
raoul@Raspberry:/opt/traccar$ java -jar tracker-server.jar conf/traccar.xml
Command 'java' not found, but can be installed with:
sudo apt install default-jre # version 2:1.11-72, or
sudo apt install openjdk-11-jre-headless # version 11.0.10+9-0ubuntu1~20.10
sudo apt install openjdk-8-jre-headless # version 8u282-b08-0ubuntu1~20.10
sudo apt install openjdk-13-jre-headless # version 13.0.4+8-1
sudo apt install openjdk-14-jre-headless # version 14.0.2+12-1
sudo apt install openjdk-15-jre-headless # version 15+36-1
raoul@Raspberry:/opt/traccar$ Do I really need to install the default-jre ??
The point is: Java is already installed on my Raspberry!
It might just be missing from the path.
Try this command: echo $JAVA_HOME
If it returns empty, it probably needs to be set to where you have your JRE installed.
I couldn't install it on my old pi for some reason, but you can search for the java command with "locate java"
If that doesn't work, install mlocate with "apt install mlocate && updatedb" first.
Hi AlfSolli,
I was all day busy with the studying of a Linux course. More and more commands are revealed to me!
The command: echo $JAVA_HOME did not give any results.
The "locate java" command was indeed not found.
Thereafter I gave the command: apt install mlocate && updatedb. This was successful I guess
After "locate java" I got some 100 lines stating all the locations .
The first lines look as follows:
/etc/.java
/etc/java-11-openjdk
/etc/.java/.systemPrefs
/etc/.java/.systemPrefs/.system.lock
/etc/.java/.systemPrefs/.systemRootModFileThat is presumably the location where the java file is located?
So before giving the command : java -jar tracker-server.jar conf/traccar.xml
I should first go to the /etc directory. Correct?
....or copy the java file to /opt/traccar??
But in between al these 100 locations there is already a line:
/opt/traccar/jre/bin/java
Interesting. Seems like java is bundled with traccar. I wasn't aware of that.
Try running:
cd /opt/traccar [ENTER]
jre/bin/java -jar tracker-server.jar conf/traccar.xml [ENTER]it returns:
bash: jre/bin/java: cannot execute binary file: Exec format error
You mentioned previously that you already have Java installed. Where is it?
Yes, Anton has advised in another post that Java is bundled with Traccar.
https://www.traccar.org/forums/topic/which-version-of-java-required-for-the-traccar-latest-version-in-linux/#post-46293
You should be able to run traccar from the command line. Try this:
/opt/traccar/jre/bin/java -jar tracker-server.jar /opt/traccar/conf/traccar.xmlYou can open up another ubuntu shell/console and check to see if it's running
ps aux | grep traccar
root@ip-172-31-26-237:/home/ubuntu# ps aux | grep traccar
root 26604 85.5 5.2 2507500 107848 pts/1 Sl+ 05:21 0:03 /opt/traccar/jre/bin/java -jar tracker-server.jar /opt/traccar/conf/traccar.xmlAfter "locate java" I got some 100 lines stating all the locations .
The first lines look as follows:
/etc/.java
/etc/java-11-openjdk
/etc/.java/.systemPrefs
/etc/.java/.systemPrefs/.system.lock
/etc/.java/.systemPrefs/.systemRootModFilebut there is also a line: /opt/traccar/jre/bin/java
So, just use your installed java for the java command. If paths are not configured properly, you can always specify full path.
Thanks a lot guys, unfortunately I am not yet to the level to understand your remarks. I think I will need a couple of days more to study Linux.
Out of the hundreds of locations with "java" in it I do not know where the real main java file is located.
I see locations with "/etc", locations with "/users/share", with "/snap", with "/var/lib", and so on.
I will fight my battle in the coming days.
Hi AlfSolli,
With help of the "challenging" support of Anton (Thanks Anton!!), I was able to set-up the server completely, inclusive E-mail notifications, etc.
(Although in my hurry to get results I made some stupid mistakes like starting up in the wrong directory and messing up some Ubuntu files.).
Unfortunately after the power-down/power-up test yesterday evening the system responded not correctly any more.
Therefore I installed this morning Linux Ubuntu 20.10 Desktop again on my RPI and in a while I will install Traccar ARM 4.12.
In the meanwhile I picked up already some basic Linux commands .
Note that my Raspberry Pi 4 is a 64 bit machine, indeed with ARM architecture but traccar linux 4.12. did it well as Linux Ubuntu Desktop 20.10 also did well.
Thanks for your support!