Only just seen your comment. This specific warning may be in systemd-shim, but hiding it just gets another warning from logind. So the only way I really see to fix this is prevent it starting that service if it wasn't booted with systemd.
Only just seen your comment. This specific warning may be in systemd-shim, but hiding it just gets another warning from logind. So the only way I really see to fix this is prevent it starting that service if it wasn't booted with systemd.