diff -u slack-0.14.1/debian/prerm slack-0.14.1/debian/prerm
--- slack-0.14.1/debian/prerm
+++ slack-0.14.1/debian/prerm
@@ -1,15 +1,19 @@
 #!/bin/sh
-# $Id: prerm,v 1.1 2004/10/23 01:21:29 alan Exp $
-# post remove script for the Debian GNU/Linux slack package
 
 set -e
 
 if [ "$1" = "purge" -o "$1" = "remove" ]; then
+        unset CACHE
+        unset STAGE
         . /etc/slack.conf
         # purge the cache
-        rm -rf "$CACHE"/*
+        if [ -n "$CACHE" ]; then
+          rm -rf "$CACHE"/*
+        fi
         # remove the stage
-        rm -rf "$STAGE"
+        if [ -n "$STAGE" ]; then
+          rm -rf "$STAGE"
+        fi
 fi
 
 #DEBHELPER#
diff -u slack-0.14.1/debian/changelog slack-0.14.1/debian/changelog
--- slack-0.14.1/debian/changelog
+++ slack-0.14.1/debian/changelog
@@ -1,3 +1,9 @@
+slack (0.14.1-2ubuntu1) hardy; urgency=low
+
+  * debian/prerm: don't rm -rf / if /etc/slack.conf is empty (LP: #255819)
+
+ -- Andrew Pollock <apollock@google.com>  Thu, 07 Aug 2008 11:25:40 -0700
+
 slack (0.14.1-2) unstable; urgency=low
 
   * debian/control: Suggests: openssh-server, openssh-client instead of ssh