diff --git a/README.md b/README.md
index 2b3b441d985540cea2163699f6b52bc0298f1a28..003a8506907312d2adf2eaf8dced61cf8119f45a 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,16 @@ jupyter:
 
 
 ```
+# If your FSL installation requires administrative privileges to modify, then
+# you MUST run these commands as root - don't just prefix each individual
+# command with sudo, or you will probably install jupyter into the wrong
+# location!
+#
+# One further complication - once you have become root, $FSLDIR may not be set,
+# so either set it as we have ione below, or make sure that it is set, before
+# proceeding.
+sudo su
+export FSLDIR=/usr/local/fsl
 source $FSLDIR/fslpython/bin/activate fslpython
 conda install jupyter
 pip install notedown
diff --git a/getting_started/03_file_management.ipynb b/getting_started/03_file_management.ipynb
index b63ece9e98275faaec5aab4a6a366f231edf294f..d1ee18a921d8729d2131562a5a39a7bac927d3f6 100644
--- a/getting_started/03_file_management.ipynb
+++ b/getting_started/03_file_management.ipynb
@@ -128,7 +128,7 @@
    "source": [
     "For the rest of this practical, we're going to use a little data set that has\n",
     "been pre-generated, and is located in a sub-directory called\n",
-    "`file_management`."
+    "`03_file_management`."
    ]
   },
   {
@@ -137,7 +137,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "os.chdir('file_management')"
+    "os.chdir('03_file_management')"
    ]
   },
   {