diff --git a/debian/changelog b/debian/changelog
index fdc8070e..b970d0a9 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,10 @@
+livecd-rootfs (0.79) UNRELEASED; urgency=low
+
+  * Use the --purge option to 'apt-get install', to ensure that any packages
+    removed as a result of Conflicts are purged (LP: #327821).
+
+ -- Colin Watson <cjwatson@ubuntu.com>  Fri, 03 Apr 2009 01:04:11 +0100
+
 livecd-rootfs (0.78) jaunty; urgency=low
 
   * Use the imx51 kernel on armel.
diff --git a/livecd.sh b/livecd.sh
index 62400ffd..9942c00e 100755
--- a/livecd.sh
+++ b/livecd.sh
@@ -365,7 +365,7 @@ Pin-Priority: 900
     fi
     chroot $ROOT apt-get update
     chroot $ROOT apt-get -y --purge dist-upgrade </dev/null
-    chroot $ROOT apt-get -y install $LIST </dev/null
+    chroot $ROOT apt-get -y --purge install $LIST </dev/null
 
     # launchpad likes to put dependencies of seeded packages in tasks along with the
     # actual seeded packages.  In general, this isn't an issue.  With updated kernels
@@ -381,12 +381,12 @@ Pin-Priority: 900
     done
     rm -f livecd.${FSS}.manifest-headers livecd.${FSS}.manifest-headers-full
     chroot ${ROOT} apt-get -y --purge remove $HEADERPACKAGES </dev/null || true
-    chroot ${ROOT} apt-get -y install $HEADERMETA </dev/null || true
+    chroot ${ROOT} apt-get -y --purge install $HEADERMETA </dev/null || true
     # End horrible linux-header launchpad workaround.  Hopefully this is temporary.
 
     chroot ${ROOT} dpkg-query -W --showformat='${Package} ${Version}\n' \
 	> livecd.${FSS}.manifest-desktop
-    chroot $ROOT apt-get -y install $LIVELIST </dev/null
+    chroot $ROOT apt-get -y --purge install $LIVELIST </dev/null
     case $FS in
 	edubuntu)
 	    chroot $ROOT apt-cache dumpavail | \