advise use of foreign when using arch

diff --git a/vmdebootstrap.8.in b/vmdebootstrap.8.in
index 9a5774e1f8f3220d5f7005d2ee1c0da0262a2ff2..80df9bc0340973345118fa65e958cb20df961f2e 100644 (file)
--- a/vmdebootstrap.8.in
+++ b/vmdebootstrap.8.in
@@ -151,7 +151,9 @@ tar up the disk's contents in FILE
 .IP \-\-mirror=URL
 use MIRROR as package source (http://http.debian.net/debian/)
 .IP \-\-arch=ARCH
-architecture to use (amd64)
+architecture to use (amd64) - if using an architecture which the
+host system cannot execute, ensure the \-\-foreign option is also
+used.
 .IP \-\-distribution=NAME
 release to use (stable)
 .IP \-\-package=PACKAGE