WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
pivccu/stable,testing 2.31.25-21 armhf [upgradable from: 2.29.23-13]
pivccu-devicetree-armbian/stable,testing 1.0.8 armhf
pivccu-modules-dkms/stable,testing 1.0.7 armhf
pivccu-modules-raspberrypi/testing 2.0-7 armhf [upgradable from: 1.20171029-1-1]
root@raspberrypi:/home/pi# sudo apt update
Hit:1 http://mirrordirector.raspbian.org/raspbian stretch InRelease
Hit:2 http://archive.raspberrypi.org/debian stretch InRelease
Hit:5 https://deb.nodesource.com/node_6.x stretch InRelease
Hit:3 https://alexreinert.github.io/piVCCU stable InRelease
Hit:4 https://alexreinert.github.io/piVCCU testing InRelease
Reading package lists... Done
Building dependency tree
Reading state information... Done
2 packages can be upgraded. Run 'apt list --upgradable' to see them.
W: Target Packages (main/binary-armhf/Packages) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list:5
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list:5
W: Target Translations (main/i18n/Translation-en_GB) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list:5
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list:5
W: Target Packages (main/binary-armhf/Packages) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list:5
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list:5
W: Target Translations (main/i18n/Translation-en_GB) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list:5
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:4 and /etc/apt/sources.list:5
root@raspberrypi:/home/pi# sudo apt upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following NEW packages will be installed:
bc dkms pivccu-modules-dkms raspberrypi-kernel-headers
The following packages will be upgraded:
pivccu pivccu-modules-raspberrypi
2 upgraded, 4 newly installed, 0 to remove and 0 not upgraded.
Need to get 75.6 MB of archives.
After this operation, 99.4 MB of additional disk space will be used.
Do you want to continue? [Y/n] j
Abort.
root@raspberrypi:/home/pi#
…Do you want to continue? [Y/n]
egal was ich eingebe(Y, y, j) = Abbruch
##########################
EDIT
##########################
mit pi@raspberrypi:~ $ sudo apt upgrade -y
gehts weiter und die neue Firmware wird installiert…
######################
EDIT2
######################
reboot
pi@raspberrypi:~ $ sudo pivccu-info
piVCCU version: 2.31.25-21
Kernel modules: Available
Raw UART dev: Available
Rasp.Pi3 UART: Assigned to GPIO pins
Board serial: NEQ0231400
State: RUNNING
PID: 670
IP: 192.168.100.13
CPU use: 17.86 seconds
BlkIO use: 43.00 MiB
Link: vethpivccu
TX bytes: 11.83 KiB
RX bytes: 22.96 KiB
Total bytes: 34.80 KiB
... nach restore von RaspiMatic (ist auch ne Himbeere in der Oberfläche 
aber immernoch keine Kommunikation !
) hatte NIE YAHM drauf (nur das Backup von der CCU aus dem Raspi 1)