Add simple update test to pfq.

image_to_live.sh

Index: image_to_live.sh
diff --git a/image_to_live.sh b/image_to_live.sh
index 553cd4d21d5e4f5f81bab20229df249f8db58509..fc32388ec43318dce82ef4e6b03065e4a9e9d37a 100755
--- a/image_to_live.sh
+++ b/image_to_live.sh
@@ -263,12 +263,17 @@ function status_thread {
     echo -n "." && sleep ${timeout}
   done
 
-  info "Update generated.  Update engine downloading update."
+  info "Update generated.  Update engine preparing to start update."
+  while [ $(get_update_var CURRENT_OP) != ${UPDATER_DOWNLOADING} ]; do

[petkov, 2011/01/07 01:10:42]

you should catch UPDATER_IDLE in this loop otherwise you risk going into an
infinite loop under some error conditions

[petkov, 2011/01/07 01:15:09]

In fact, theoretically, if the update goes really fast, you may end up in
UPDATED_REBOOT_NEEDED state. So, just to be on the safe side, maybe check for
that too.

+    echo -n "." && sleep ${timeout}
+  done
+
+  info "Update engine downloading update."
   while [ $(get_update_var CURRENT_OP) = ${UPDATER_DOWNLOADING} ]; do
     echo "Download progress $(get_update_var PROGRESS)" && sleep ${timeout}
   done
 
-  info "Download complete."
+  info "Download complete.  Finalizing update."
 }