diff --git a/configs/sim/include/.gitignore b/configs/sim/include/.gitignore
new file mode 100644
index 00000000000..0561ac18486
--- /dev/null
+++ b/configs/sim/include/.gitignore
@@ -0,0 +1,2 @@
+/etc
+/romfs_img
diff --git a/configs/sim/include/README.txt b/configs/sim/include/README.txt
index dac6bedbcf7..b8403f7fc6e 100644
--- a/configs/sim/include/README.txt
+++ b/configs/sim/include/README.txt
@@ -85,7 +85,10 @@ README
 
   Now rebuild the simulation.  No login should be required to enter the
   shell and you should find the 'useradd', 'userdel', and 'passwd' commands
-  available in the help summary.
+  available in the help summary, provided that they are enabled.  Make
+  certain that the 'useradd' command is not disabled:
+
+      # CONFIG_NSH_DISABLE_USERADD is not set
 
   Use the NSH 'useradd' command to add new uses with new user passwords like:
 
diff --git a/configs/sim/include/etc.tar.gz b/configs/sim/include/etc.tar.gz
index ef280e64cef..0e598a66d45 100644
Binary files a/configs/sim/include/etc.tar.gz and b/configs/sim/include/etc.tar.gz differ
diff --git a/configs/sim/include/nsh_romfsimg.h b/configs/sim/include/nsh_romfsimg.h
index ea107ef7093..23895b27b45 100644
--- a/configs/sim/include/nsh_romfsimg.h
+++ b/configs/sim/include/nsh_romfsimg.h
@@ -1,7 +1,7 @@
 const unsigned char romfs_img[] =
 {
-  0x2d, 0x72, 0x6f, 0x6d, 0x31, 0x66, 0x73, 0x2d, 0x00, 0x00, 0x01, 0xa0,
-  0x83, 0xe9, 0x44, 0x8c, 0x53, 0x69, 0x6d, 0x45, 0x74, 0x63, 0x56, 0x6f,
+  0x2d, 0x72, 0x6f, 0x6d, 0x31, 0x66, 0x73, 0x2d, 0x00, 0x00, 0x01, 0x90,
+  0xf3, 0x09, 0x03, 0xc1, 0x53, 0x69, 0x6d, 0x45, 0x74, 0x63, 0x56, 0x6f,
   0x6c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x49,
   0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0xd1, 0xff, 0xff, 0x97,
   0x2e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
@@ -28,12 +28,12 @@ const unsigned char romfs_img[] =
   0x72, 0x61, 0x6d, 0x32, 0x0a, 0x6d, 0x6f, 0x75, 0x6e, 0x74, 0x20, 0x2d,
   0x74, 0x20, 0x76, 0x66, 0x61, 0x74, 0x20, 0x2f, 0x64, 0x65, 0x76, 0x2f,
   0x72, 0x61, 0x6d, 0x32, 0x20, 0x2f, 0x74, 0x6d, 0x70, 0x0a, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x27,
-  0x18, 0x3a, 0x8c, 0x5c, 0x70, 0x61, 0x73, 0x73, 0x77, 0x64, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1d,
+  0x18, 0x3a, 0x8c, 0x6e, 0x70, 0x61, 0x73, 0x73, 0x77, 0x64, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x61, 0x64, 0x6d, 0x69,
-  0x6e, 0x20, 0x63, 0x37, 0x66, 0x61, 0x66, 0x34, 0x66, 0x63, 0x62, 0x61,
-  0x37, 0x37, 0x61, 0x65, 0x36, 0x36, 0x62, 0x36, 0x33, 0x34, 0x39, 0x64,
-  0x37, 0x34, 0x62, 0x30, 0x39, 0x33, 0x34, 0x32, 0x66, 0x33, 0x0a, 0x00,
+  0x6e, 0x20, 0x38, 0x54, 0x76, 0x2b, 0x48, 0x62, 0x6d, 0x72, 0x33, 0x70,
+  0x4c, 0x64, 0x64, 0x53, 0x6a, 0x74, 0x7a, 0x4c, 0x30, 0x6b, 0x77, 0x43,
+  0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
@@ -89,3 +89,4 @@ const unsigned char romfs_img[] =
 };
 
 const unsigned int romfs_img_len = 1024;
+