commit 6651a120b498539f682a43a28e6209cb81e33a20
author Isaac Chen <ycchen@google.com> Wed Dec 13 17:22:25 2017 +0800
committer Isaac Chen <ycchen@google.com> Wed Dec 13 17:22:25 2017 +0800
tree 961f76f23da0d84902e5b0040fbfbd6a6ade9c46
parent 795c5b444fc57876c74ec44116553b4504d44979

Make update_engine work with non-AB update devices

Disable update_engine service initially. Enable it only on A/B
update devices (by checking "ro.boot.slot_suffix" property).

Bug: 70541023
Test: On aosp/master:
    $ lunch aosp_x86_64-userdebug; m -j # boot to home screen
    # On goog/master:
    $ lunch aosp_walleye-userdebug; m -j # boot to home screen

Change-Id: I68bc1ddc9689a22a64dd1d96e884fdae30eb54f5

update_engine.rc

diff --git a/update_engine.rc b/update_engine.rc
index 0576045..a7d6235 100644
--- a/update_engine.rc
+++ b/update_engine.rc
@@ -3,3 +3,7 @@
     user root
     group root system wakelock inet cache
     writepid /dev/cpuset/system-background/tasks
+    disabled
+
+on property:ro.boot.slot_suffix=*
+    enable update_engine