- Platform information:
- Hardware: Raspberry Pi 1
- OS: Raspbian Stretch
- Java Runtime Environment: OpenJDK Runtime Environment (Zulu Embedded 8.25.0.76-linux-aarch32hf) (build 1.8.0_152-b76)
- openHAB version: 2.2.0
Currently, I have issues bringing the Z-Wave PLugin to life. The Error I get is: Serial Error: Port /dev/ttyAMA0 does not exist
I manually installed openhab, sticking to https://docs.openhab.org/installation/linux.html#manual-installation
Things I have checked:
- in the service configuration, in /lib/systemd/system/openhab2.service, i uncommented the line
#EnvironmentFile=/etc/default/openhab2
- put
EXTRA_JAVA_OPTS="-Dgnu.io.rxtx.SerialPorts=/dev/ttyAMA0"
into a new file named /etc/default/openhab2
added the openhab user to groups “dialout” and “tty”, so when i
grep tty /etc/group
i get
tty:x:5:pi,openhab
and when i
grep dialout /etc/group
i get
dialout:x:20:pi,openhab
also, to verify openhab is called with the right parameters, is did
ps ax |grep ttyAMA0
and got
435 ? Ss+ 0:00 /sbin/agetty --keep-baud 115200,38400,9600 ttyAMA0 vt220
535 ? Sl 29:25 /usr/bin/java -Dopenhab.home=/opt/openhab2 -Dopenhab.conf=/opt/openhab2/conf -
Dopenhab.runtime=/opt/openhab2/runtime -Dopenhab.userdata=/opt/openhab2/userdata -
Dopenhab.logdir=/opt/openhab2/userdata/logs -Dfelix.cm.dir=/opt/openhab2/userdata/config -Djetty.host=0.0.0.0 -
Djetty.http.compliance=RFC2616 -Dorg.ops4j.pax.web.listening.addresses=0.0.0.0 -Dorg.osgi.service.http.port=8080
-Dorg.osgi.service.http.port.secure=8443 -Djava.awt.headless=true **-Dgnu.io.rxtx.SerialPorts=/dev/ttyAMA0** -
Djava.endorsed.dirs=/usr/lib/jvm/zulu-embedded-8-armhf/jre/lib/endorsed:/usr/lib/jvm/zulu-embedded-8-
armhf/lib/endorsed:/opt/openhab2/runtime/lib/endorsed -Djava.ext.dirs=/usr/lib/jvm/zulu-embedded-8-
armhf/jre/lib/ext:/usr/lib/jvm/zulu-embedded-8-armhf/lib/ext:/opt/openhab2/runtime/lib/ext -
Dkaraf.instances=/opt/openhab2/userdata/tmp/instances -Dkaraf.home=/opt/openhab2/runtime -
Dkaraf.base=/opt/openhab2/userdata -Dkaraf.data=/opt/openhab2/userdata -Dkaraf.etc=/opt/openhab2/userdata/etc -
Dkaraf.logs=/opt/openhab2/userdata/logs -Dkaraf.restart.jvm.supported=true -
Djava.io.tmpdir=/opt/openhab2/userdata/tmp -
Djava.util.logging.config.file=/opt/openhab2/userdata/etc/java.util.logging.properties -Dkaraf.startLocalConsole=false -
Dkaraf.startRemoteShell=true -classpath /opt/openhab2/runtime/lib/boot/org.apache.karaf.diagnostic.boot-
4.1.3.jar:/opt/openhab2/runtime/lib/boot/org.apache.karaf.jaas.boot-
4.1.3.jar:/opt/openhab2/runtime/lib/boot/org.apache.karaf.main-4.1.3.jar:/opt/openhab2/runtime/lib/boot/org.osgi.core-
6.0.0.jar org.apache.karaf.main.Main
13080 pts/0 S+ 0:00 grep --color=auto ttyAMA0
I made the interesting part bold, so you don’t have to search the whole thing. So the parameter is in the command line…
Also, to verify that there is a /dev/ttyAMA0:
ls -la /dev/ttyAMA0
returns
crw--w---- 1 root tty 204, 64 Dec 31 15:29 /dev/ttyAMA0
The java version should be the recommended 32 bit version of zulu,
java -version
returns
openjdk version "1.8.0_152"
OpenJDK Runtime Environment (Zulu Embedded 8.25.0.76-linux-aarch32hf) (build 1.8.0_152-b76)
OpenJDK Client VM (Zulu Embedded 8.25.0.76-linux-aarch32hf) (build 25.152-b76, mixed mode, Evaluation)
Any suggestions where to look next?
Thanks a lot,
Björn
PS: i already had the thing running with raspbian jessie, oracle java and oh 2.1, but the sd card crashed and so i had to set it up new…