commit 2bddadd17e31ca1341604f8652432a8619557688
author Alex Vakulenko <avakulenko@chromium.org> Thu Mar 27 13:23:46 2014 -0700
committer chrome-internal-fetch <chrome-internal-fetch@google.com> Fri Mar 28 23:11:38 2014 +0000
tree 226f7f40cdef3863aff282cb6180c149ca0787dd
parent 9a423ff19e3a7503cd8128998b3a10d65c499fdc

update_engine: Added more logging and debugging for rollback checking

To help troubleshoot issues similar to http://crbug.com/356975 I added
more logging in DBus methods of update_engine to trace various stages
of determining available boot partitions, etc.

Also added two more DBus methods - to get the suggested rollback
partition name (and switched CanRollback to use this method) and
the list of availavle kernel partitions along with the 'bootable'
flag for each.

Changed update_engine_client to show the name of avaiable rollback
partition with --can_rollback and also added --show_kernels to
output list of available kernel partitions and whether each partition
is bootable or not.

BUG=None
TEST=Unit tests pass

Change-Id: Ib7f92a6460c578953ea1ba9b23bd0669acb0e22f
Reviewed-on: https://chromium-review.googlesource.com/191949
Reviewed-by: Alex Vakulenko <avakulenko@chromium.org>
Tested-by: Alex Vakulenko <avakulenko@chromium.org>
Commit-Queue: Alex Vakulenko <avakulenko@chromium.org>

update_engine.xml

diff --git a/update_engine.xml b/update_engine.xml
index 3891374..b99f345 100644
--- a/update_engine.xml
+++ b/update_engine.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8" ?>
+<?xml version="1.0" encoding="utf-8" ?>
 <!-- COPYRIGHT HERE
      dbus-binding-tool -mode=glib-server -prefix=update_engine update_engine.xml
                         &gt; glib_server.h
@@ -81,5 +81,11 @@
     <method name="GetPrevVersion">
       <arg type="s" name="prev_version" direction="out" />
     </method>
+    <method name="GetKernelDevices">
+      <arg type="s" name="kernel_devices" direction="out" />
+    </method>
+    <method name="GetRollbackPartition">
+      <arg type="s" name="rollback_partition_name" direction="out" />
+    </method>
   </interface>
 </node>