Hi.
I saw a couple of folk struggling to install openHAB 2.5.0 on a raspberry Pi 4, first off the Pi architecture is well suited for 64bit and backporting that is shrinkwrapped is not necesarily a good trait.
I would recommend downloading the raspberry Pi 4 64bit server image from Ubuntu (19.10 Eoan Ermine)
https://ubuntu.com/download/raspberry-pi
Download the image, flash it to a microSD card, insert into then connect to network and boot your Raspberry Pi, watch the console screen to see the IPv4 address obtained.
Then open a Putty or terminal session to your Pi4 IPv4 address, the default login is ubuntu, password ubuntu, it will ask you to change the password straight away. Once done re-open the terminal session, login as ubuntu with your new password, and issue root a passwd.
sudo passwd root
Repeat the password, then switch to the root user.
su root
Enter the password you just assigned.
Then copy and paste the script below
install_openhab(){
apt-get update
#Install dependancies
apt-get install openjdk-8-jdk libjna-java -y
echo “Pausing for 30 seconds after Java installation …”
sleep 30
#Package Installation
#1.Add the repository key
wget -qO - ‘https://bintray.com/user/downloadSubjectPublicKey?username=openhab’ | sudo apt-key add -
#2.Add the HTTPS transport for APT
sudo apt-get install apt-transport-https -y
#3.Add the repository
echo ‘deb https://dl.bintray.com/openhab/apt-repo2 stable main’ | sudo tee /etc/apt/sources.list.d/openhab2.list
#4.Update the package lists and install the openHAB distribution package
apt-get -y install unzip zip
sudo apt-get update && sudo apt-get -y install openhab2 --allow-unauthenticated
#5.(Optional) Install the add-ons for offline use
sudo apt-get install openhab2-addons -y --allow-unauthenticated
sudo /bin/systemctl enable openhab2.service
sudo /bin/systemctl daemon-reload
service openhab2 stop
cat >> /etc/openhab2/services/addons.cfg << ‘EOF_PACKAGES’
package = expert
ui = basic,paper,habpanel,habmin
EOF_PACKAGES
sudo /bin/systemctl start openhab2.service
#lets just give openhab a minute to let all the services start
#6.Navigate with a web browser to http://:8080
echo “Pausing for 60 seconds after openHAB installation…”
echo “Please note it will take a few minutes for the openHAB packages to load and the GUI on port 8080 to become available”
sleep 60
}
install_openhab
Trust someone will find use in this.