Index: kdm/backend/bootman.c
===================================================================
--- kdm/backend/bootman.c.orig
+++ kdm/backend/bootman.c
@@ -132,19 +132,14 @@ setGrub( const char *opt, SdRec *sdr )
 static void
 commitGrub( void )
 {
-	FILE *f;
-	int pid;
-	static const char *args[] = { 0, "--batch", "--no-floppy", 0 };
+        char buffer[PATH_MAX];
 
 	if (sdRec.bmstamp != mTime( GRUB_MENU ) &&
 	    setGrub( sdRec.osname, &sdRec ) != BO_OK)
 		return;
 
-	args[0] = grub;
-	if ((f = pOpen( (char **)args, 'w', &pid ))) {
-		fprintf( f, "savedefault --default=%d --once\n", sdRec.osindex );
-		pClose( f, pid );
-	}
+        snprintf(buffer, PATH_MAX, "/usr/sbin/grubonce %d", sdRec.osindex); 
+	system(buffer);
 }
 
 static char *lilo;