Known Software Problems

CUPS does not start and LDAP error in import_workstations

After the initial installation, configuration and installation of all updates, you may also encounter the following problems:

  • Cups does not start and
  • import_workstations aborts with error message that LDAP is not available.
Fatal! LDAP is not available! Is slapd running?

You can also find DENIEDs in the /var/log/syslog logfile apparmor DENIEDs.


Solutions for both of these problems can be found in the forum: Apparmor, LDAP.

Both problems can be solved on the server as follows:

Step 1: Deinstallation of the service

# service apparmor stop
# update-rc.d -f apparmor remove
# apt-get --purge remove apparmor apparmor-utils libapparmor-perl libapparmor1
# rm -rf /etc/apparmor*
# update-initramfs -u

Step 2: Installation of the service

# apt-get install apparmor apparmor-utils


# sophomorix-dump-pg2ldap