Updated docs for swapfile setup, added some commentary suggested

by William Lloyd.

FAQ/FAQ.sgml

@@ -1,12 +1,12 @@
 <!DOCTYPE linuxdoc PUBLIC "-//FreeBSD//DTD linuxdoc//EN">
-<!-- $Id: FAQ.sgml,v 1.77 1997-09-30 17:46:40 pds Exp $ -->
+<!-- $Id: FAQ.sgml,v 1.78 1997-09-30 18:40:19 pds Exp $ -->
 
   <article>
 
 <title>Frequently Asked Questions for FreeBSD 2.X
 <author>Maintainer: Peter da Silva <tt><htmlurl url='mailto:peter@taronga.com'
   name='&lt;peter@taronga.com&gt;'></tt>
-<date>$Date: 1997-09-30 17:46:40 $</date>
+<date>$Date: 1997-09-30 18:40:19 $</date>
 
 <abstract>
 This is the FAQ for FreeBSD systems version 2.X  All entries are
@@ -2506,18 +2506,30 @@ drivedata: 0
 
 	<p>The best way is to increase the size of your swap partition, or
 	take advantage of this convenient excuse to add another disk (and
-        see <ref id="swap" name="this note"> if you do), but
-	<bf/Werner Griessl/ has provided these instructions for setting FreeBSD
-	up for swapping to a file:
+        see <ref id="swap" name="this note"> if you do).
+        <p>Adding swap onto a seperate disk makes things faster than
+        simply adding swap onto the same disk.  As an example, if you
+        are compiling source located on one disk, and the swap is on
+        another disk, this is much faster than both swap and compile
+        on the same disk.  This is true for SCSI disks specifically.
+        <p> IDE drives are not able to allow access to both drives on
+        the same channel at the same time.  I would still suggest putting
+        your swap on a seperate drive however.  The drives are so cheap,
+        it is not worth worrying about.
+        <p>It is a really bad idea to locate your swap file over NFS
+        unless you are running in a fast networking enviroment, with
+        a good server.  If you can afford fast ethernet, you will not
+        need my advice anyway.
+
 
 	<p>Here is an example for 64Mb vn-swap (<tt>/usr/swap0</tt>, though
 	   of course you can use any name that you want).
 	<p>
 	  Make sure your kernel was built with the line
 	  <verb>
-pseudo-device   vn   #Vnode driver (turns a file into a device)
+pseudo-device   vn 1   #Vnode driver (turns a file into a device)
 	  </verb>
-	  in your config-file.
+	  in your config-file.  The GENERIC kernel already contains this.
 	<p>
 	  <enum>
 	    <item>
@@ -2531,13 +2543,18 @@ cd /dev; sh ./MAKEDEV vn0
 dd if=/dev/zero of=/usr/swap0 bs=1024k count=64
 	    </verb>
 	    <item>
-	    put into /etc/rc.local the line
-	    <verb>
-vnconfig -ce /dev/vn0c /usr/swap0 swap
-	    </verb>
+     enable the swap file in /etc/rc.conf
+            <verb>
+swapfile="/usr/swap0"   # Set to name of swapfile if aux swapfile desired.
+            </verb>
 	    <item>
 	    reboot the machine
 	  </enum>
+          <p>To enable the swap file immediately try
+   <verb>
+vnconfig -ce /dev/vn0c /usr/swap0 swap
+   </verb>
+
 
 
       </sect1>