Upgrade OH3 to OH4

[tandrei2011 (Андрей Николаевич)]

Please help!! Updated without reading from Openhab3 to openhab 4 via openhabian-config/ Now openhab doesn’t start, what can I do? How to update Java 11 to Java 17? There is no openhabian-config option. When updating the software and the structure from the site, the JAGDG gives the error zulu/deb stable InRelease’ doesn’t support
architecture ‘armhf’

[Wolfgang_S]

• What is the hardware that you use ?
• What is the OS and version ( jessie, stretch, buster, bullseye, … ) that you use ?

[tandrei2011 (Андрей Николаевич)]

Release = Raspbian GNU/Linux 10 (buster)

Kernel = Linux 5.10.103-v7l+

Openhabian

[Wolfgang_S]

See reply to your double post:

openHAB 4.0 Milestone discussion

a) make sure to use the stable repo instead of testing. this would enable you to switch back to OH 3.4.2. In case the configuration files are already touched you may have a problem. Especially in case there is no backup. b) Install Java17. Looks like Zulu 17 is not available via repo for armhf. I think it is possible to download it from https://www.azul.com/downloads/?version=java-17-lts&os=linux&architecture=arm-32-bit-hf&package=jdk&show-old-builds=true manually in a tar file and install it.…

[tandrei2011 (Андрей Николаевич)]

how to manually install step by step?

[hmerk (Hans-Jörg Merk)]

this has already been answered

openHAB 4.0 Milestone discussion

I’m not an expert, but I wrote this up to document what I did to get Java17 running with Buster. I consider this a temporary solution. Might help someone, but no promises. I’m sure there are better ways to do this, but this worked for me. The zulu site I used is [here] (near the bottom). (Java Download | Java 7, Java 8, Java 11, Java 13, Java 15, Java 17, Java 19 - Linux, Windows & macOS). Update Buster to Java17.pdf (482.7 KB)

Read the PDF at the bottom!