Likely related, but in Artful systemd-networkd is setting the hostname and has a 10 second timeout:
# systemctl status --no-pager -l systemd-networkd ● systemd-networkd.service - Network Service Loaded: loaded (/lib/systemd/system/systemd-networkd.service; enabled; vendor preset: enabled) Active: active (running) since Thu 2017-11-09 15:20:37 UTC; 1h 7min ago Docs: man:systemd-networkd.service(8) Main PID: 146 (systemd-network) Status: "Processing requests..." Tasks: 1 (limit: 4915) Memory: 1.4M CPU: 32ms CGroup: /system.slice/systemd-networkd.service └─146 /lib/systemd/systemd-networkd Nov 09 15:20:37 a2 systemd[1]: systemd-networkd.service: Failed to set invocation ID on control group /system.slice/systemd-networkd.service, ignoring: Operation not permitted Nov 09 15:20:37 a2 systemd[1]: Starting Network Service... Nov 09 15:20:37 a2 systemd-networkd[146]: eth0: Gained IPv6LL Nov 09 15:20:37 a2 systemd-networkd[146]: Enumeration completed Nov 09 15:20:37 a2 systemd[1]: Started Network Service. Nov 09 15:20:40 a2 systemd-networkd[146]: eth0: DHCPv4 address 10.245.119.172/24 via 10.245.119.1 Nov 09 15:20:40 a2 systemd-networkd[146]: Not connected to system bus, ignoring transient hostname. Nov 09 15:20:49 a2 systemd-networkd[146]: eth0: Configured Nov 09 15:21:18 a2 systemd-networkd[146]: Could not set hostname: Method call timed out -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1575779 Title: hostnamectl fails under lxd unpriv container To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1575779/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs