Bug#764773: live-config: update-notifier configuration script use inexistent path and fails

[Fernando López <flopez@linti.unlp.edu.ar>]

Package: live-config
Version: 4.0.1-1
Severity: grave
Justification: renders package unusable

Dear Maintainer,

Adding a new config script to live-config (to configure some aspects  
of our Debian derivative) we noticed it didn't run. We tried to  
restart the service in a running live system and it failed:

    root@debian:/home/user# service live-config restart
    Job for live-config.service failed. See 'systemctl status  
live-config.service' and 'journalctl -xn' for details.

systemctl showed the following error (non relevant lines omited):

    root@debian:/home/user# systemctl status -l live-config.service
    ...
    Oct 10 21:47:16 debian live-config[28179]: live-config: debconf  
keyboard-configuration update-notifierln: failed to create symbolic  
link '/usr/lib/update-notifier/apt-check': No such file or directory


update-notifier is installed but /usr/lib/update-notifier doesn't  
exist and the package doesn't provide an apt-check file (neither does  
the package that replaces update-notifier: gnome-packagekit).


-- System Information:
Debian Release: jessie/sid
  APT prefers testing-updates
  APT policy: (500, 'testing-updates'), (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 3.16-2-486
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages live-config depends on:
ii  live-config-systemd [live-config-backend]  4.0.1-1

Versions of packages live-config recommends:
ii  iproute2                3.16.0-2
ii  keyboard-configuration  1.113
ii  live-config-doc         4.0.1-1
ii  live-tools              4.0.1-1
ii  locales                 2.19-11
ii  sudo                    1.8.10p3-1
ii  user-setup              1.58

Versions of packages live-config suggests:
ii  pciutils  1:3.2.1-3
ii  wget      1.15-1+b1

-- no debconf information