diff -Nru grub-installer-1.128ubuntu4/debian/changelog grub-installer-1.128ubuntu5/debian/changelog
--- grub-installer-1.128ubuntu4/debian/changelog	2016-02-29 15:48:38.000000000 +0000
+++ grub-installer-1.128ubuntu5/debian/changelog	2016-03-14 20:05:59.000000000 +0000
@@ -1,3 +1,13 @@
+grub-installer (1.128ubuntu5) xenial; urgency=medium
+
+  [ Mauricio Faria de Oliveira ]
+  * grub-installer [ppc64el]: generalize the regex for multiple PReP
+    partitions (rather than append 'p' just for NVMe :) for any /dev
+    entry, but without trailing partition numbers (matches the shell
+    parameter expansion in the subsequent grep). (LP: #1550448)
+
+ -- Mathieu Trudel-Lapierre <mathieu-tl@ubuntu.com>  Mon, 14 Mar 2016 16:05:57 -0400
+
 grub-installer (1.128ubuntu4) xenial; urgency=medium
 
   * Fix installing grub to a PReP partition over RAID which would be supported
diff -Nru grub-installer-1.128ubuntu4/grub-installer grub-installer-1.128ubuntu5/grub-installer
--- grub-installer-1.128ubuntu4/grub-installer	2016-02-29 15:48:21.000000000 +0000
+++ grub-installer-1.128ubuntu5/grub-installer	2016-03-14 20:04:16.000000000 +0000
@@ -515,7 +515,7 @@
 
 		if echo $disc_offered | grep -q '/dev/md[0-9]\+'; then
 			if mdadm --detail --verbose $disc_offered \
-			     | grep -o '/dev/\([hsv]d[a-z]\|xvd[a-z]\|cciss/c[0-9]d[0-9]*\|ida/c[0-9]d[0-9]*\|rs/c[0-9]d[0-9]*\|mmcblk[0-9]\|ad[0-9]*\|da[0-9]*\|fio[a-z]\|nvme[0-9]\+n[0-9]\+\)' \
+			     | sed -n 's:.*\(/dev/.*[^0-9]\)[0-9]\+$:\1:p' \
 			     | grep "${prep_p%[0-9]*}"; then
 				wipe_bootdevs="$wipe_bootdevs $prep_p"
 			fi