I am currently running OpenHabian with OH 2.5.12-1 and would like to migrate to OH 3.
Following the migration docs, I ran sudo openhabian-config and expected openhabian-config to ask me whether I would like to update. However, openhabian-config didn’t ask.
Observations:
On startup, openhabian-config tries to access bintray, which of course fails.
There is no menu item in openhabian-config for the update to OH 3.
No reason to believe it should. The docs don’t say that, do they.
Second, the master branch has long been deprecated. Your openHABian is ancient because you have not updated in a long time that’s why it has no upgrade option.
You can try to (as root in shell)
cd /opt/openhabian
git checkout stable
then start openhabian-config again.
but no guarantees that’ll work.
Needless to say, usual caution should apply (make a system backup before this etc.).