diff -Nru drbd8-8.4.3/debian/changelog drbd8-8.4.3/debian/changelog
--- drbd8-8.4.3/debian/changelog	2014-02-07 18:55:46.000000000 +0100
+++ drbd8-8.4.3/debian/changelog	2014-04-22 15:07:16.000000000 +0200
@@ -1,3 +1,10 @@
+drbd8 (2:8.4.3-0ubuntu0.12.04.2) precise; urgency=low
+
+  * Add compat library path before executing drbdsetup. Otherwise
+    the call fails with misleading error message (LP: #1185756).
+
+ -- Stefan Bader <stefan.bader@canonical.com>  Tue, 22 Apr 2014 15:05:50 +0200
+
 drbd8 (2:8.4.3-0ubuntu0.12.04.1) precise; urgency=low
 
   * Backport version from 13.04 so that the utils will handle the
diff -Nru drbd8-8.4.3/debian/patches/series drbd8-8.4.3/debian/patches/series
--- drbd8-8.4.3/debian/patches/series	2014-02-07 18:55:46.000000000 +0100
+++ drbd8-8.4.3/debian/patches/series	2014-04-22 15:00:42.000000000 +0200
@@ -5,3 +5,4 @@
 ubuntu-no-options-in-global.patch
 ubuntu-emulate-adjust-with-progress.patch
 ubuntu-adjust-legacy-version.patch
+ubuntu-fix-drbdsetup-legacy-path.patch
diff -Nru drbd8-8.4.3/debian/patches/ubuntu-fix-drbdsetup-legacy-path.patch drbd8-8.4.3/debian/patches/ubuntu-fix-drbdsetup-legacy-path.patch
--- drbd8-8.4.3/debian/patches/ubuntu-fix-drbdsetup-legacy-path.patch	1970-01-01 01:00:00.000000000 +0100
+++ drbd8-8.4.3/debian/patches/ubuntu-fix-drbdsetup-legacy-path.patch	2014-04-22 15:05:45.000000000 +0200
@@ -0,0 +1,40 @@
+Description: Also add drbd lib to the path for drbdsetup
+ The same is done for drbadmin. Otherwise the call to the legacy binary
+ fails.
+Forwarded: not-yet
+Origin: vendor, http://bugs.launchpad.net/bugs/1185756
+Bug-Ubuntu: http://bugs.launchpad.net/bugs/1185756
+Author: Stefan Bader <stefan.bader@canonical.com>
+Index: drbd8-8.4.3/user/drbdsetup.c
+===================================================================
+--- drbd8-8.4.3.orig/user/drbdsetup.c	2012-11-06 15:54:30.000000000 +0100
++++ drbd8-8.4.3/user/drbdsetup.c	2014-04-22 15:05:38.424216743 +0200
+@@ -2395,6 +2395,20 @@ static int is_drbd_driver_missing(void)
+ 	return 1;
+ }
+ 
++#ifdef DRBD_LEGACY_83
++void add_lib_drbd_to_path(void)
++{
++	char *new_path = NULL;
++	char *old_path = getenv("PATH");
++
++	m_asprintf(&new_path, "%s%s%s",
++			old_path,
++			old_path ? ":" : "",
++			"/lib/drbd");
++	setenv("PATH", new_path, 1);
++}
++#endif
++
+ void exec_legacy_drbdsetup(char **argv)
+ {
+ #ifdef DRBD_LEGACY_83
+@@ -2405,6 +2419,7 @@ void exec_legacy_drbdsetup(char **argv)
+ 	 * look for the legacy drbdsetup binary in the same location,
+ 	 * otherwise, just let execvp sort it out... */
+ 	if ((progname = strrchr(argv[0], '/')) == 0) {
++		add_lib_drbd_to_path();
+ 		drbdsetup = strdup(legacy_drbdsetup);
+ 	} else {
+ 		size_t len_dir, l;