Main and temporary databases are no longer configured by default if databases...

Main and temporary databases are no longer configured by default if databases aren't provided in the configuration.  Change zope.conf.in to specify root and temporary databases.

skel/etc/zope.conf.in

@@ -818,37 +818,33 @@ instancehome $INSTANCE
 #
 # Description:
 #     A database section allows the definition of custom database and
-#     storage types.
+#     storage types.  More than one zodb_db section can be defined.
+#
+# Default: unset.
+#          IMPORTANT: At least one database with a mount-point of "/"
+#          must be specified for Zope to start properly.
+
+<zodb_db main>
+    # Main FileStorage database
+    <filestorage>
+      path $INSTANCE/var/Data.fs
+    </filestorage>
+    mount-point /
+</zodb_db>
+
+<zodb_db temporary>
+    # Temporary storage database (for sessions)
+    <temporarystorage>
+      name temporary storage for sessioning
+    </temporarystorage>
+    mount-point /temp_folder
+    container-class Products.TemporaryFolder.TemporaryContainer
+</zodb_db>
+
+# Other storage examples
 #
-# Default:
-#   If a database is not specified, a FileStorage in client-home is
-#   used for the main storage, and a TemporaryStorage is used for
-#   the mounted storage which backs the '/temp_folder'.
-#
-# Examples:
-#
-# Filestorage:
-# <zodb_db main>
-#    <filestorage>
-#      path $INSTANCE/var/Data.fs
-#    </filestorage>
-#    mount-point /
-#    cache-size                     5000
-#    pool-size                      7
-#    version-pool-size              3
-#    version-cache-size             100
-# </zodb_db>
-#
-# Temporary storage:
-# <zodb_db temporary>
-#    <temporarystorage>
-#      name sessions
-#    </temporarystorage>
-#    mount-point /temp_folder
-#    container-class Products.TemporaryFolder.TemporaryContainer
-# </zodb_db>
-# 
 # ZEO client storage:
+#
 # <zodb_db main>
 #   mount-point /
 #   <zeoclient>
@@ -858,4 +854,3 @@ instancehome $INSTANCE
 #     var $INSTANCE/var
 #   </zeoclient>
 # </zodb_db>
-