On my Pi 3b OpenHabian would not self install.
- Log in with the default credentials
openhabian /openhabian - Check you have internet access {ping google.com} – if not fix that
- Check if the directory exists and it can’t overwrite /opt/
openhab - Check your Date and Time of the system using the command date (will cause SSL Failures if really wrong)
For me the date was wrong so issued
# sudo date mmddhhMMYYYY
- mm = Two number Month
- dd = two number day
- hh = two number hour
- MM = two number minute
- YYYY = 4 digit year.