This project build a Synology DiskStation SPK install package for openHAB (Home Automation Server).
Comments, suggestions and contributions are welcome!
Download SPK package from 
The openHAB log files can be found here:
/volume1/@appstore/openHAB/userdata/logs/.
From Version openHAB-2.2.0.006 the SPK generates two log files located at /var/log/.
The first log file openHAB-install.log will be generated during the installation. If you can't install the openHAB SPK, please have a look inside the file.
The second log openHAB-start-stop.log will be generated by starting and stopping openHAB inside the Package Manager.
Installation und Prerequisite Install Java Documentation: Official openHAB Usage Manual
For usage of serial devices you need to check if openhab user has the appropriate rights to access the device in /dev and to create lock files in /run/lock
To do so the installer tries to add the openhab user to the groups dialout and uucp. But these groups are not present on all synology diskstations.
/run/lock for instance is created as this on a ds214play:
drwxr-xr-x 5 root root 160 Dec 9 20:11 lock
and /dev/ttyUSB0 is per default also created for root only:
crw------- 1 root root 188, 0 Dec 4 12:55 /dev/ttyUSB0
The result in nrjavaserial / RXTX to access this port would be a no port found exception.
To correct this you need three steps (login as admin on diskstations ssh login):
a) create a group and assign openhab user to it
sudo synogroup --add uucp openhab
b) setup udev rule so that access rights in /dev/ are permanent and reload udev rules
example for pl2303 usb to serial converter:
sudo echo 'SUBSYSTEM=="tty", ATTRS{idVendor}=="067b", ATTRS{idProduct}=="2303", GROUP="uucp", MODE="0660"' >>/usr/lib/udev/rules.d/50-yourrules
example for general ttyUSB rule:
sudo echo 'KERNEL=="ttyUSB*", ACTION=="add", MODE="0660", GROUP="uucp"' >>/usr/lib/udev/rules.d/50-yourrules
reload rules now:
sudo udevadm control --reload
c) enable access for openhab user for lock file creation
chmod 0775 /run/lock
chown root.uucp /run/lock
edit /etc/init/root-file-system.conf to persist this change.
sudo vi /etc/init/root-file-system.conf
change line
/bin/mkdir -p /run/lock || true
to
/bin/mkdir -m 0775 -p /run/lock || true
chown root.uucp /run/lock || true
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