diff -Nru xfsprogs-4.2.0/debian/changelog xfsprogs-4.2.0.1/debian/changelog
--- xfsprogs-4.2.0/debian/changelog	2015-09-11 01:51:36.000000000 +0000
+++ xfsprogs-4.2.0.1/debian/changelog	2015-11-10 16:35:45.000000000 +0000
@@ -1,3 +1,11 @@
+xfsprogs (4.2.0.1) unstable; urgency=low
+
+  * NMU
+  * * Add a postinst to update the initramfs on install/upgrade.
+    (Closes: #804255)
+
+ -- Steve McIntyre <93sam@xxxxxxxxxx>  Tue, 10 Nov 2015 16:33:59 +0000
+
 xfsprogs (4.2.0) unstable; urgency=low
 
   * New upstream release
diff -Nru xfsprogs-4.2.0/debian/postinst xfsprogs-4.2.0.1/debian/postinst
--- xfsprogs-4.2.0/debian/postinst	1970-01-01 00:00:00.000000000 +0000
+++ xfsprogs-4.2.0.1/debian/postinst	2015-11-10 16:35:20.000000000 +0000
@@ -0,0 +1,25 @@
+#!/bin/sh
+
+set -e
+
+case "${1}" in
+	configure)
+		if [ -x /usr/sbin/update-initramfs ] && [ -e /etc/initramfs-tools/initramfs.conf ]
+		then
+			update-initramfs -u
+		fi
+		;;
+
+	abort-upgrade|abort-remove|abort-deconfigure)
+
+		;;
+
+	*)
+		echo "postinst called with unknown argument \`${1}'" >&2
+		exit 1
+		;;
+esac
+
+#DEBHELPER#
+
+exit 0