--- debian/cups-pdf.postinst.orig       2015-08-20 11:53:43.426340680 +1000
+++ debian/cups-pdf.postinst    2015-08-20 10:43:45.382393743 +1000
@@ -43,8 +43,8 @@ case "$1" in
                                sleep 1
                        done
                fi
-               # Create a PDF queue if we have none yet.
-               if [ -z "$(LC_ALL=C lpstat -h localhost -v 2>/dev/null | grep 'cups-pdf:/')" ]
+               # Create a PDF queue if we have none yet (but NOT inside chroots; see Debian bugs #539156,#614713)
+                if [ -z "$(LC_ALL=C lpstat -h localhost -v 2>/dev/null | grep 'cups-pdf:/')" ] && [ -d /run/cups/certs ]
                then
                        # 1) Find a name for the PDF queue.
                        queue=PDF