Clarify command to bind /boot to chroot

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@11145 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter08/kernel.xml

@@ -201,7 +201,8 @@ File systems  --->
     <caution>
       <para>If the host system has a separate /boot partition, the
       files copied below should go there. The easiest way to do that 
-      is to bind /boot on the host to /mnt/lfs/boot before proceeding:</para>
+      is to bind /boot on the host to /mnt/lfs/boot before proceeding.
+      As the root user in the <emphasis>host system</emphasis>:</para>
 
 <screen role="nodump"><userinput>mount --bind /boot /mnt/lfs/boot</userinput></screen>
     </caution>