What were you trying to do that didn't work?

 /var/lib/unbound/root.key is not created in IMAGE MODE

Steps to reproduce

1.  install && run

Actual results

Sep 30 10:02:51 c8032bc5-6cb8-4507-b24b-6bc161259632 systemd[1]: Starting unbound.service - Unbound recursive Domain Name Server...
Sep 30 10:02:51 c8032bc5-6cb8-4507-b24b-6bc161259632 unbound-checkconf[18918]: /var/lib/unbound/root.key: No such file or directory
Sep 30 10:02:51 c8032bc5-6cb8-4507-b24b-6bc161259632 unbound-checkconf[18918]: [1759226571] unbound-checkconf[18918:0] fatal error: auto-trust-anchor-file: "/var/lib/unbound/root.key" does not exist
Sep 30 10:02:51 c8032bc5-6cb8-4507-b24b-6bc161259632 systemd[1]: unbound.service: Control process exited, code=exited, status=1/FAILURE
Sep 30 10:02:51 c8032bc5-6cb8-4507-b24b-6bc161259632 systemd[1]: unbound.service: Failed with result 'exit-code'.
Sep 30 10:02:51 c8032bc5-6cb8-4507-b24b-6bc161259632 systemd[1]: Failed to start unbound.service - Unbound recursive Domain Name Server.