2 files changed, 29 insertions, 3 deletions
diff --git a/INSTALL.txt b/INSTALL.txt
index 9dbc33406..630f3316f 100644
--- a/INSTALL.txt
+++ b/INSTALL.txt
@@ -74,14 +74,26 @@ about this, ask your system administrator), create a new database for
 Elgg. Make sure you know the username and password necessary to 
 access this.
 
+4. Install your crontab (UNIX ONLY)
 
-4. Visit your Elgg site
+Cron is a UNIX command which allows programs to be run at set times of
+the day.
+
+If you want to take advantage of some of the maintenance functions 
+such as log rotation or garbage collection, you must install a cron tab
+to trigger these events.
+
+There is an example crontab called crontab.example, edit this with the 
+details of your site and install it with the command.
+
+	crontab crontab.example 
+
+5. Visit your Elgg site
 
 Once you've performed these steps, visit your Elgg site in your web 
 browser. Elgg will take you through the rest of the installation 
 process from there.
 
-
 A note on settings and .htaccess
 
 The Elgg installer will try and create two files for you:
diff --git a/UPGRADE.txt b/UPGRADE.txt
index 6f938d4b2..1ea6f863e 100644
--- a/UPGRADE.txt
+++ b/UPGRADE.txt
@@ -9,4 +9,18 @@ ELGG UPGRADE INSTRUCTIONS
    maintain your modifications, although Elgg is not guaranteed
    to work correctly in this instance. 
 
-3. Visit http://your-elgg-site-URL/upgrade.php
-\ No newline at end of file
+3. Visit http://your-elgg-site-URL/upgrade.php
+
+4. If you haven't already done so, install your crontab (UNIX ONLY)
+
+   Cron is a UNIX command which allows programs to be run at set 
+   times of the day.
+
+   If you want to take advantage of some of the maintenance 
+   functions such as log rotation or garbage collection, you must 
+   install a cron tab to trigger these events.
+
+   There is an example crontab called crontab.example, edit this 
+   with the details of your site and install it with the command.
+
+   			crontab crontab.example 
+\ No newline at end of file