missing LSB tags and overrides seem to cause loop in insserv

[Karl-Philipp Richter]

Invoking `sudo LANG=C apt-get remove refdb-server` prints

    Reading package lists... Done
    Building dependency tree
    Reading state information... Done
    The following packages will be REMOVED:
      refdb-server
    0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
    1 not fully installed or removed.
    After this operation, 837 kB disk space will be freed.
    Do you want to continue? [Y/n] y
    bzr: warning: ?berspringe /etc/X11/core (Gr??er als add.maximum_file_size von 20000000 Bytes)
    /bin/sh: 1: /usr/bin/apt-listdifferences: not found
    Setting up initscripts (2.88dsf-41ubuntu18) ...
    insserv: script zfs-mount: service zfs already provided!
    insserv: warning: script 'refdb' missing LSB tags and overrides
    insserv: There is a loop between service wulf2html and refdb if stopped
    insserv: loop involving service refdb at depth 2
    insserv: loop involving service wulf2html at depth 1
    insserv: Stopping refdb depends on wulf2html and therefore on system facility `$all' which can not be true!
    insserv: exiting now without changing boot order!
    update-rc.d: error: insserv rejected the script header
    dpkg: error processing package initscripts (--configure):
     subprocess installed post-installation script returned error exit status 1
    Errors were encountered while processing:
     initscripts
    bzr: warning: ?berspringe /etc/X11/core (Gr??er als add.maximum_file_size von 20000000 Bytes)
    E: Sub-process /usr/bin/dpkg returned an error code (1)

which makes the configuration of init.d services with `rcconf` impossible (after reinstallation of `initscripts` its configuration is pending and the error message is caused by the configuration rather than the removal of refdb-server, but the missing specifications in the script cause the trouble anyway).

One can work around the issue by removing `/etc/inid.d/refdb` (or backing it up outside `/etc/init.d`), but it should not come to things, not to mention that the situation is impossible to handle intuitively.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: refdb-server 1.0.2-2
Uname: Linux 3.17.7-031707-generic x86_64
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Dec 19 14:33:34 2014
SourcePackage: refdb
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.