diff --git a/etc/xen-tools.conf b/etc/xen-tools.conf
index f87b55b..a7523a8 100644
--- a/etc/xen-tools.conf
+++ b/etc/xen-tools.conf
@@ -55,10 +55,8 @@
 # this file.
 #
 #  Note that you can only uncomment one method - they are mutually exclusive.
-#
-#  We leave each of these settings commented out, but they can be specified
-# on the commandline, uncommenting one of the options makes sense if you
-# only ever use one installation method.
+# However the command line installation method will allow you to override
+# the choice you make here.
 #
 ##
 # 
@@ -76,6 +74,7 @@
 size   = 4Gb      # Disk image size.
 memory = 128Mb    # Memory size
 swap   = 128Mb    # Swap size
+# noswap = 1      # Don't use swap at all for the new system.
 fs     = ext3     # use the EXT3 filesystem for the disk image.
 dist   = sarge    # Default distribution to install.
 image  = sparse   # Specify sparse vs. full disk images.
@@ -139,6 +138,15 @@ image  = sparse   # Specify sparse vs. full disk images.
 kernel = /boot/vmlinuz-2.6.16-2-xen-686
 initrd = /boot/initrd.img-2.6.16-2-xen-686
 
+#
+#  The architecture to use when using debootstrap or rpmstrap.
+#
+#  This is most useful on 64 bit host machines, for other systems it
+# doesn't need to be used.
+#
+# arch=i386
+#
+
 #
 # The default mirror for debootstrap which can be used to install
 # Debian Sid, Sarge, and Etch.