diff -Nur util-linux-2.12pre/configure util-linux-2.12pre.org/configure
--- util-linux-2.12pre/configure.fumount	2003-07-05 13:06:55.000000000 -0700
+++ util-linux-2.12pre/configure	2004-10-20 15:17:31.914627387 -0700
@@ -70,6 +70,13 @@
 
 rm -f conftest.c conftest
 
+for arg in "$@"
+do
+    if [ "$arg" = "--with-fumount" ]; then
+	echo "#define HAVE_FUMOUNT" >> defines.h
+    fi
+done
+
 #
 # Old gcc wants options like -m486, but gcc 3.0 says
 # `-m486' is deprecated. Use `-march=i486' or `-mcpu=i486' instead.
diff -Nur util-linux-2.12pre/mount/umount.c util-linux-2.12pre.org/mount/umount.c
--- util-linux-2.12pre/mount/umount.c	2002-10-31 17:00:50.000000000 -0800
+++ util-linux-2.12pre.org/mount/umount.c	2004-08-12 22:59:38.967943624 -0700
@@ -45,6 +45,10 @@
 #include "fstab.h"
 #include "env.h"
 #include "nls.h"
+/* for vforce unmount */
+#ifdef HAVE_FUMOUNT
+#define MNT_FFORCE      0x00000008      /* Really forcibily umount - no prisoners */
+#endif
 
 #ifdef HAVE_NFS
 #include <sys/socket.h>
@@ -94,6 +98,11 @@
 /* Nonzero for force umount (-f).  There is kernel support since 2.1.116.  */
 int force = 0;
 
+#ifdef HAVE_FUMOUNT
+/* Nonzero for vforce umount (-F). */
+int vforce = 0;
+#endif
+
 /* Nonzero for lazy umount (-l).  There is kernel support since 2.4.11.  */
 int lazy = 0;
 
@@ -275,8 +284,22 @@
 			umnt_err = errno;
 		goto writemtab;
 	}
-
-	if (force) {		/* only supported for NFS */
+ 
+        #ifdef HAVE_FUMOUNT
+        if (vforce) {
+		res = umount2 (node, MNT_FFORCE);
+		if (res == -1) {
+			perror("umount2");
+			if (errno == ENOSYS) {
+				if (verbose)
+					printf(_("no umount2, trying umount...\n"));
+				res = umount (node);
+			}
+		}
+        }
+        else 
+        #endif
+        if (force) {		/* only supported for NFS */
 		res = umount2 (node, MNT_FORCE);
 		if (res == -1) {
 			perror("umount2");
@@ -441,6 +464,9 @@
 {
   { "all", 0, 0, 'a' },
   { "force", 0, 0, 'f' },
+#ifdef HAVE_FUMOUNT
+  { "vforce", 0, 0, 'F' },
+#endif
   { "help", 0, 0, 'h' },
   { "no-mtab", 0, 0, 'n' },
   { "test-opts", 1, 0, 'O' },
@@ -454,9 +480,15 @@
 static void
 usage (FILE *fp, int n)
 {
+  #ifdef HAVE_FUMOUNT
+  fprintf (fp, _("Usage: umount [-hV]\n"
+	       "       umount -a [-f] [-F] [-r] [-n] [-v] [-t vfstypes] [-O opts]\n"
+	       "       umount [-f] [-F] [-r] [-n] [-v] special | node...\n"));
+  #else
   fprintf (fp, _("Usage: umount [-hV]\n"
 	       "       umount -a [-f] [-r] [-n] [-v] [-t vfstypes] [-O opts]\n"
 	       "       umount [-f] [-r] [-n] [-v] special | node...\n"));
+  #endif
   exit (n);
 }
 
@@ -619,8 +651,13 @@
 
 	umask(033);
 
+        #ifdef HAVE_FUMOUNT
+	while ((c = getopt_long (argc, argv, "adfFhlnrt:O:vV",
+				 longopts, NULL)) != -1)
+        #else
 	while ((c = getopt_long (argc, argv, "adfhlnrt:O:vV",
 				 longopts, NULL)) != -1)
+        #endif
 		switch (c) {
 		case 'a':		/* umount everything */
 			++all;
@@ -632,6 +669,11 @@
 		case 'f':		/* force umount */
 			++force;
 			break;
+                #ifdef HAVE_FUMOUNT
+		case 'F':		/* VFS level force umount */
+			++vforce;
+			break;
+                #endif
 		case 'h':		/* help */
 			usage (stdout, 0);
 			break;
@@ -665,8 +707,13 @@
 
 	if (getuid () != geteuid ()) {
 		suid = 1;
-		if (all || types || nomtab || force)
+                #ifdef HAVE_FUMOUNT
+		if (all || types || nomtab || force || vforce)
+			die (2, _("umount: only root can do that"));
+                #else
+		if (all || types || nomtab || force )
 			die (2, _("umount: only root can do that"));
+                #endif
 	}
 
 	argc -= optind;