openHABian hassle-free openHAB Setup

Hi!
first of all thank you great work, helped me a lot in setting up my OH2.
But now i’m struggling. i got a serial pi plus and tried it on a fresh jessie setup. after adding “enable_uart=1” to /boot/config.txt i get this

pi@raspberrypi:~ $ ls -l /dev lrwxrwxrwx 1 root root 7 Mar 29 18:29 serial0 -> ttyAMA0 lrwxrwxrwx 1 root root 5 Mar 29 18:29 serial1 -> ttyS0

but if i do the same thing on my openHABian setup there’s no serial0 nor serial1

[code][pi3]
kernel=vmlinuz-4.4.0-1-rpi2
initramfs initrd.img-4.4.0-1-rpi2 followkernel

enable the serial console for the installed system

enable_uart=1
gpu_mem=16
dtparam=audio=on
dtoverlay=pi3-disable-bt[/code]

i also tried to disable/enable serial settings via openHABian setup, but that’s not helping.
any idea what i can do?