dbus.conf tmpfiles.d file dont populate /var/lib/dbus

[Juanjo Presa]

If I try to start a system without /var or with volatile one,the service "Create Volatile Files and Directories" fails with

systemd-tmpfiles[23]: symlink(/etc/machine-id, /var/lib/dbus/machine-id) failed: No such file or directory

If I add the line:

d /var/lib/dbus 0755 - - -

to /lib/tmpfiles.d/dbus.conf everything works.

-----------------------
lsb_release -rd
Description: Ubuntu 16.04.1 LTS
Release: 16.04

apt-cache policy dbus
dbus:
  Installed: 1.10.6-1ubuntu3
  Candidate: 1.10.6-1ubuntu3
  Version table:
 *** 1.10.6-1ubuntu3 500
        500 http://es.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        100 /var/lib/dpkg/status