diff -ur installation-guide-20130408.orig/en/appendix/preseed.xml installation-guide-20130408/en/appendix/preseed.xml
--- installation-guide-20130408.orig/en/appendix/preseed.xml	2013-04-20 23:34:48.623427811 +0900
+++ installation-guide-20130408/en/appendix/preseed.xml	2013-04-20 23:28:35.907445867 +0900
@@ -828,7 +828,7 @@
 commands:
 
 <informalexample><screen>
-killall.sh; netcfg
+kill-all-dhcp; netcfg
 </screen></informalexample>
 
 </para><para>