ulnoiot does not work as expected on new Raspberry Pi 3 B+

[staltnerthomas]

As a first workaround try (if possible) following:

1. Install ulnoiot as described on a SD-Card.
2. Insert it in an older Raspberry Pi -- in my case a Raspberry Pi 2 B
3. Perform following updates:
   a. sudo apt update
   b. sudo apt upgrade
   c. sudo rpi-update
4. Finally run ulnoiot upgrade
5. Insert card to new Raspberry Pi 3 B+
6. ulnoiot should boot as expected