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>

UpdateEngine.conf

diff --git a/UpdateEngine.conf b/UpdateEngine.conf
index bdfd3c8..e9fe2d5 100644
--- a/UpdateEngine.conf
+++ b/UpdateEngine.conf
@@ -20,6 +20,12 @@
            send_member="CanRollback"/>
     <allow send_destination="org.chromium.UpdateEngine"
            send_interface="org.chromium.UpdateEngineInterface"
+           send_member="GetRollbackPartition"/>
+    <allow send_destination="org.chromium.UpdateEngine"
+           send_interface="org.chromium.UpdateEngineInterface"
+           send_member="GetKernelDevices"/>
+    <allow send_destination="org.chromium.UpdateEngine"
+           send_interface="org.chromium.UpdateEngineInterface"
            send_member="ResetStatus"/>
     <allow send_destination="org.chromium.UpdateEngine"
            send_interface="org.chromium.UpdateEngineInterface"
@@ -50,7 +56,7 @@
            send_member="GetDurationSinceUpdate"/>
     <allow send_destination="org.chromium.UpdateEngine"
            send_interface="org.chromium.UpdateEngineInterface"
-           send_member="GetOldVersion"/>
+           send_member="GetPrevVersion"/>
     <allow send_interface="org.chromium.UpdateEngineLibcrosProxyResolvedInterface" />
   </policy>
   <policy user="power">