diff -Nru grub-installer-1.128ubuntu4/debian/changelog grub-installer-1.128ubuntu4multiprepv31/debian/changelog
--- grub-installer-1.128ubuntu4/debian/changelog	2016-02-29 10:48:38.000000000 -0500
+++ grub-installer-1.128ubuntu4multiprepv31/debian/changelog	2016-03-04 16:18:00.000000000 -0500
@@ -1,3 +1,12 @@
+grub-installer (1.128ubuntu4multiprepv31) UNRELEASED; urgency=medium
+
+  * 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).
+
+ -- Mauricio Faria de Oliveira <mauricfo@linux.vnet.ibm.com>  Fri, 04 Mar 2016 18:14:10 -0300
+
 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-1.128ubuntu4multiprepv31/grub-installer
--- grub-installer-1.128ubuntu4/grub-installer	2016-02-29 10:48:21.000000000 -0500
+++ grub-installer-1.128ubuntu4multiprepv31/grub-installer	2016-03-04 16:07:06.000000000 -0500
@@ -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]\+$:\1:p' \
 			     | grep "${prep_p%[0-9]*}"; then
 				wipe_bootdevs="$wipe_bootdevs $prep_p"
 			fi