I have two identical openHABian installations on identical Raspberry Pi hardware, one for testing and one for actual use. The differences are only in some items and rules.
When updating the OS using openhab-config the test system OS was updated to the last stable Bookworm version and everything is working OK.
When updating the OS using openhab-config the actual system OS was updated to the last available (not stable) version Forky and I have some non working issues.
Is there any way to downgrade the actual system to Bookworm OS or is this a complete reinstall situation?
It might be worth researching how it got moved to the unstable OS. openHABian doesn’t do that and as far as I know testing openHABian on forky has not yet begun. So figuring out what caused this could be important to figure out how to prevent it happening again.
In general I would expect downgrading to work the same as upgrading.
edit the /etc/apt/sources.d files to point to bookworm
sudo apt update
sudo apt full-upgrade
However, in my experience this only works 75% of the time.
In the long run you’ll probably spend less effort just taking a backup, burning a new image and restoring rather than trying to do an inplace upgrade/downgrade.
