Index: __init__.py
===================================================================
--- __init__.py	(Revision 14754)
+++ __init__.py	(Arbeitskopie)
@@ -690,10 +690,11 @@
 
 	def __create_at_job(self, command):
 		script = '''
+exec >> /var/log/univention/security-updates.log 2>&1
 dpkg-statoverride --add root root 0644 /usr/sbin/univention-management-console-server
 dpkg-statoverride --add root root 0644 /usr/sbin/apache2
 chmod -x /usr/sbin/univention-management-console-server /usr/sbin/apache2
-%s
+%s </dev/null
 if [ $? -eq 0 ]; then
 	univention-config-registry set update/reboot/required=yes
 fi
@@ -701,8 +702,8 @@
 dpkg-statoverride --remove /usr/sbin/apache2
 chmod +x /usr/sbin/univention-management-console-server /usr/sbin/apache2
 ''' % command
-		p1 = subprocess.Popen(['echo "%s" | at now' % script], stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
-		(stdout,stderr) = p1.communicate()
+		p1 = subprocess.Popen(['at', 'now'], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+		(stdout,stderr) = p1.communicate(script)
 		ud.debug(ud.ADMIN, ud.WARN, 'executing "%s"' % command)
 		ud.debug(ud.ADMIN, ud.WARN, 'install stderr=%s' % stderr)
 		ud.debug(ud.ADMIN, ud.INFO, 'install stdout=%s' % stdout)