From 2225b1642cd457e8c719a2b2cdc79b187755aa7b Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Sun, 7 Jun 2015 10:25:03 -0600
Subject: [PATCH] Update some README files

---
 configs/sim/README.txt | 35 +++++++++++++++++++++++++++++++++++
 fs/unionfs/README.txt  |  6 +++---
 2 files changed, 38 insertions(+), 3 deletions(-)

diff --git a/configs/sim/README.txt b/configs/sim/README.txt
index 1696f2d648..86b0fe6a40 100644
--- a/configs/sim/README.txt
+++ b/configs/sim/README.txt
@@ -706,6 +706,41 @@ unionfs
   of the ROMFS file systems at apps/examples/unionfs/atestdir and
   btestdir.
 
+  Here is some sample output from the test:
+
+    NuttShell (NSH)
+    nsh> unionfs
+    Mounting ROMFS file system 1 at target=/mnt/a with source=/dev/ram4
+    Mounting ROMFS file system 2 at target=/mnt/b with source=/dev/ram5
+    nsh> ls /mnt/unionfs/adir
+    /mnt/unionfs/adir:
+     ..
+     asubdir/
+     adirfile.txt
+     bsubdir/
+     bdirfile.txt
+
+  adir/ exists in both file system 1 and file system 2.   Above you are
+  looking at the merged content.  The unified directory listing is showing
+  files from both file systems in their respective adir/ subdirectory.
+  The file adirfile.txt exists in both file system 1 and file system 2 but
+  the version if file system 2 is occluded by the version in file system 1.
+  The only way that you can which are looking at is by cat'ing the file:
+
+    nsh> cat /mnt/unionfs/adir/adirfile.txt
+    This is a file in directory adir on file system 1
+
+
+  The file on file system 1 has correctly occluded the file with the same
+  name on file system 2.  bdirfile.txt, however, only exists on file
+  system 2, so it is not occluded:
+
+    nsh> cat /mnt/unionfs/adir/bdirfile.txt
+    This is another file in directory adir on file system 2
+
+  You can see the files in the two file systems before they were unified at
+  apps/examples/unionfs/atestdir and btestdir.
+
 ustream
 
   This is the same as the nsh configuration except that it includes
diff --git a/fs/unionfs/README.txt b/fs/unionfs/README.txt
index fb2d4530b0..a506d1ff90 100755
--- a/fs/unionfs/README.txt
+++ b/fs/unionfs/README.txt
@@ -21,10 +21,10 @@ fs/unionfs/README.txt
 
   See include/nutts/unionfs.h for additional information.
 
-  The Union File Sysem is enabled by selecting the CONFIG_FS_UNIONFS option
-  in the NuttX configruation file.
+  The Union File System is enabled by selecting the CONFIG_FS_UNIONFS option
+  in the NuttX configuration file.
 
-  Uses of the Unioin File System
+  Uses of the Union File System
   ------------------------------
   The original motivation for this file was for the use of the built-in
   function file system (BINFS) with a web server.  In that case, the built