Public bug reported: I believe this is the same issue as in this bug here: https://bugs.launchpad.net/cloud-init/+bug/1662542
root@ubuntu1804:~# lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04 LTS Release: 18.04 Codename: bionic cloud-init/bionic,bionic,now 18.2-14-g6d48d265-0ubuntu1 all [installed] Excerpt form /var/log/cloud-init.log: 2018-05-10 16:11:28,774 - cc_set_hostname.py[DEBUG]: Setting the hostname to nohostname.novalocal (nohostname) 2018-05-10 16:11:28,774 - util.py[DEBUG]: Running command ['hostnamectl', 'set-hostname', 'nohostname.novalocal'] with allowed return codes [0] (shell=False, capture=True) 2018-05-10 16:11:28,778 - util.py[WARNING]: Failed to set the hostname to nohostname.novalocal (nohostname) 2018-05-10 16:11:28,778 - util.py[DEBUG]: Failed to set the hostname to nohostname.novalocal (nohostname) Traceback (most recent call last): File "/usr/lib/python3/dist-packages/cloudinit/config/cc_set_hostname.py", line 75, in handle cloud.distro.set_hostname(hostname, fqdn) File "/usr/lib/python3/dist-packages/cloudinit/distros/__init__.py", line 109, in set_hostname self._write_hostname(writeable_hostname, self.hostname_conf_fn) File "/usr/lib/python3/dist-packages/cloudinit/distros/rhel.py", line 125, in _write_hostname util.subp(['hostnamectl', 'set-hostname', str(hostname)]) File "/usr/lib/python3/dist-packages/cloudinit/util.py", line 1957, in subp cmd=args) cloudinit.util.ProcessExecutionError: Unexpected error while running command. Command: ['hostnamectl', 'set-hostname', 'nohostname.novalocal'] Exit code: 1 Reason: - Stdout: Stderr: Failed to create bus connection: No such file or directory 2018-05-10 16:11:28,783 - main.py[DEBUG]: Failed setting hostname in init-net stage. Will retry in modules:config stage. Error: Failed to set the hostname to nohostname.novalocal (nohostname): Unexpected error while running command. Command: ['hostnamectl', 'set-hostname', 'nohostname.novalocal'] Exit code: 1 Reason: - Stdout: Stderr: Failed to create bus connection: No such file or directory. ** Affects: cloud-init (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1770451 Title: hostname not set: Failed to create bus connection: No such file or directory To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cloud-init/+bug/1770451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs