As it seems I am doomed I was using openhabian 1.6.1. for upgrading to OH3. It was not working so I decided to downgrade again. Afterwards, I saw some messages, that it did not work out as expected. Anyway, now I am trying to get OH 2.5.x running again with my backup. Unfortunately, this did not work either. Here are the logs:
$ systemctl restart openhab2.service OK OK 2020-12-30_16:22:12_CET [openHABian] Migrating Amanda config... OK 2020-12-30_16:22:12_CET [openHABian] Migrating Samba and mount units... $ systemctl stop smbd nmbd Failed to stop smbd.service: Unit smbd.service not loaded. Failed to stop nmbd.service: Unit nmbd.service not loaded. FAILED (stop samba) 2020-12-30_16:22:38_CET [openHABian] Beginning restoration of openHAB backup... OK 2020-12-30_16:22:49_CET [openHABian] Restoring openHAB backup... $ systemctl stop openhab2.service $ openhab-cli restore /var/lib/openhab2/backups/openhab2-backup-20_10_19-21_41_31.zip /usr/bin/openhab-cli: 220: /usr/bin/openhab-cli: /bin/restore: not found FAILED (restore) 2020-12-30_16:24:02_CET [openHABian] We hope you got what you came for! See you again soon ;
For me it seems, that the location of the backup was not correct or the files could not be moved appropriately - what do you think and what are the next steps to solve that issue?