VOL-2014: Rebase bal30-dev branch with master and re-verify sanity with SEBA2.0 and VOLTHA2.x before merge to master
          Squashed all commits from bal30-dev branch to master branch as a single commit.
          Bumped version to 2.0.0-dev .
          Update README.md with the required ONL version for BAL3.1 .

VOL-2130: Wrong queue id assigned for downstream queue on tm_sched
          for the subscriber when using single gem port.
          Use queue_id as 0 when using single gem port.

          Issues need to be taken care:
          VOL-1580: Support reporting ONU Registration ID as part of ONU Activation Indication
          - commented the code developed for VOL-1580 to fetch ONU registration ID as it uses BAL2.6 specific API's.
          - Need to check how the same can be achieved using BAL3.x API's to fetch ONU registration ID

Set .gitreview defaultbranch to bal30-dev
Rebase change - Removed .gitreview defaultbranch so that by default it will point to master

Change-Id: Ib57e52e98cf09f4fa3dbaa9156a4375b7dc6ee43

Rebase: [VOL-1635] [BAL3.0 Bridade] OLT Activation [VOL-1636] [BAL3.0 Bridade] ONU Discovery,
        This OpenOLT agent supports the BAL V3.0.3.3 SDK. OLT/ONU activation from voltha-1.7 is successful

Change-Id: I860b31317172139cd4c4244a93e79e0c3ce4fdf8

Rebase: [VOL-1685][BAL3.0 Bridade] generate OpenOLT debian package file

Change-Id: Ib0332d948602bf7892b6aae91a4147356237f7e2

Rebase: [VOL-1685][BAL3.0 Brigade] generate OpenOLT debian package file
missing copy shell files (dev_mgmt_daemon and openolt).

Change-Id: Id29dc24be4d1d5fc12a26884e5b5a69de91fbd69

Rebase: [VOL-1685][BAL3.0 Brigade] generate OpenOLT debian package file

Change-Id: Ic5453616c0dbdbc1fb1eb241feba1cbfca5e8e85

Rebase: [VOL-1852][BAL3.0 Brigade] Support Edge-core OLT ASFvOLT16 (XGS-PON) and
ASGvOLT64 (GPON) devices

Change-Id: I316d35bc76c38b5381e8896148b4ee5cebbd1099

VOL-1850: Fix packet duplication with TM Queue Mapping profile
          Fix for US and DS scheduler ID allocation irrespective of device type(asfvolt16/asfvolt64)
          README.md file update with BAL3.1.1.1 specifications

Change-Id: I255bf7a4ff35771e9c628bb822ba2190a1fcd5ed

Rebase: [VOL-1787] : This commit sets up a unit-test framework for openolt
                     agent based on gtest, gmock and c-mock utilities.
                     A sample unit-test case to test EnableOlt success case is also
                     added. More test cases will be added in future commit.

Change-Id: If020be489a04d97df5fcbc15e9207deeee2fcfac

Rebase: [VOL-2040]: Patch the macro required by core.cc into bcmos_system.h file

Change-Id: Ic841785b2ce451b1acaf007074b8c458687bc753

Rebase: [VOL-2043] : OLT Enable Test Case

        - Added more test cases for OLT Enable. Now covers all scenarios.
        - Fixed typos in unit test README.md

Change-Id: Ib931d89cedee78fe40ca67761a028365a047ebc3

Rebase: VOL-1941: Use protobufs from the voltha-protos repo, not a copy

        - Use protobufs from the voltha-protos repo, not a copy
        - Provided option to specify the openolt proto version via make option
        - Removed duplicate README.md

Change-Id: Id67714c8119521f8358aaa9245268c47b7e843cf
diff --git a/agent/device/asgvolt64/mkdebian/debian/asgvolt64.preinst b/agent/device/asgvolt64/mkdebian/debian/asgvolt64.preinst
new file mode 100644
index 0000000..f3c0cbf
--- /dev/null
+++ b/agent/device/asgvolt64/mkdebian/debian/asgvolt64.preinst
@@ -0,0 +1,61 @@
+#!/bin/bash
+
+# Copyright 2018-present Open Networking Foundation
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# kill CLI applications
+echo "kill running time application"
+[ -n "`pidof dev_mgmt_daemon`" ] && killall dev_mgmt_daemon
+[ -n "`pidof bcm.user`" ] && killall bcm.user
+[ -n "`pidof dev_mgmt_attach`" ] && killall dev_mgmt_attach
+[ -n "`pidof embedded_console`" ] && killall embedded_console 
+[ -n "`pidof example_user_appl`" ] && killall example_user_appl 
+[ -n "`pidof openolt`" ] && killall openolt
+rm -f /tmp/root_dev_mgmt_pid /tmp/root_dev_mgmt_init_done
+sleep 3
+# unload drivers
+echo "unload kernel drivers"
+[ -n "`lsmod | grep i2c_devs`" ] && rmmod i2c_devs && sleep 1
+[ -n "`lsmod | grep nltr`" ] &&  rmmod nltr && sleep 1
+[ -n "`lsmod | grep pcie_proxy`" ] && rmmod pcie_proxy && sleep 1
+[ -n "`lsmod | grep devmem`" ] && rmmod devmem && sleep 1
+[ -n "`lsmod | grep fld_linux`" ] && rmmod fld_linux && sleep 1
+[ -n "`lsmod | grep os_linux`" ] && rmmod os_linux && sleep 1
+[ -n "`lsmod | grep ll_pcie`" ] && rmmod ll_pcie && sleep 1
+[ -n "`lsmod | grep linux_user_bde`" ] && rmmod linux-user-bde && sleep 1
+[ -n "`lsmod | grep linux_kernel_bde`" ] && rmmod linux-kernel-bde && sleep 1
+rm -rf /dev/maple_i2c
+rm -rf /dev/bcmolt_pcie_proxy
+rm -rf /dev/linux-uk-proxy
+rm -rf /dev/linux-user-bde
+rm -rf /dev/linux-kernel-bde
+rm -rf /dev/coop_dba_example
+rm -rf /dev/coop_dba
+for i in {0..7}; do
+    [ ! -f /dev/bcmolt_devmem_sram$i ] && rm -f /dev/bcmolt_devmem_sram$i
+    [ ! -f /dev/bcmolt_devmem_ddr$i ] && rm -f /dev/bcmolt_devmem_ddr$i
+    [ ! -f /dev/bcmolt_devmem_regs$i ] && rm -f /dev/bcmolt_devmem_regs$i
+done
+
+rm -rf /opt/bcm68620
+rm -rf /run/bcm68620
+
+rm -rf  /broadcom
+
+rm -rf /usr/local/lib/libgrpc++.so.1
+rm -rf /usr/local/lib/libgrpc.so.6
+rm -rf /usr/local/lib/libbal_host_api.so
+rm -rf /usr/local/lib/libstdc++.so.6
+