ferm do not start at boot after ubuntu 15.04 upgrade

[txemi]

Trying to enable it in systemd fails:

$ sudo systemctl enable ferm
Synchronizing state for ferm.service with sysvinit using update-rc.d...
Executing /usr/sbin/update-rc.d ferm defaults
insserv: warning: current stop runlevel(s) (0 6) of script `ferm' overrides LSB defaults (empty).
Executing /usr/sbin/update-rc.d ferm enable
insserv: warning: current stop runlevel(s) (0 6) of script `ferm' overrides LSB defaults (empty).
Failed to execute operation: No such file or directory

start operation seems to works.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ferm 2.2-3
ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
Uname: Linux 3.19.0-15-generic i686
ApportVersion: 2.17.2-0ubuntu1
Architecture: i386
Date: Sat May 2 11:50:43 2015
InstallationDate: Installed on 2010-11-07 (1636 days ago)
InstallationMedia: Ubuntu-Server 10.10 "Maverick Meerkat" - Release i386 (20101007)
PackageArchitecture: all
ProcEnviron:
 TERM=screen-256color-bce
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=es_ES.UTF-8
 SHELL=/bin/bash
SourcePackage: ferm
UpgradeStatus: Upgraded to vivid on 2015-04-27 (5 days ago)
modified.conffile..etc.default.ferm: [modified]
modified.conffile..etc.ferm.ferm.conf: [modified]
mtime.conffile..etc.default.ferm: 2013-10-02T13:48:41.419583
mtime.conffile..etc.ferm.ferm.conf: 2014-08-14T10:31:48.133413