For the sake of help and guidance, this particular error was rather trivial. xmlrpc/client is missing (it was part of ruby but not is separated). Due to that old dependencies are missing it.
You can root@b:~# gem install xmlrpc And restart the service: $ systemctl restart opennebula-novnc This makes the service run, but I'd not really want to rely on it seeing how broken it seems. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1799905 Title: package opennebula-sunstone 4.12.3+dfsg-3.1build1 failed to install/upgrade: installed opennebula-sunstone package post- installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/opennebula/+bug/1799905/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs