diff --git a/debian/cloudstack-management.postinst b/debian/cloudstack-management.postinst
index e37813f528c..e70a1a435e4 100644
--- a/debian/cloudstack-management.postinst
+++ b/debian/cloudstack-management.postinst
@@ -55,14 +55,17 @@ if [ "$1" = configure ]; then
         fi
     fi
 
-    chmod 0640 /etc/cloudstack/management/db.properties
-    chgrp cloud /etc/cloudstack/management/db.properties
+    CONFDIR="/etc/cloudstack/management"
+    DBPROPS="db.properties"
+
+    chmod 0640 ${CONFDIR}/${DBPROPS}
+    chgrp cloud ${CONFDIR}/${DBPROPS}
     invoke-rc.d tomcat6 stop || true
 
     # Add jdbc MySQL driver settings to db.properties if not present
-    grep "db.cloud.driver=jdbc:mysql" /etc/cloudstack/management/db.properties > /dev/null|| echo "db.cloud.driver=jdbc:mysql" >> /etc/cloudstack/management/db.properties
-    grep "db.usage.driver=jdbc:mysql" /etc/cloudstack/management/db.properties > /dev/null|| echo "db.usage.driver=jdbc:mysql" >> /etc/cloudstack/management/db.properties
-    grep "db.simulator.driver=jdbc:mysql" /etc/cloudstack/management/db.properties > /dev/null|| echo "db.simulator.driver=jdbc:mysql" >> /etc/cloudstack/management/db.properties
+    grep -s -q "db.cloud.driver=jdbc:mysql" ${CONFDIR}/${DBPROPS} || sed -i -e "\$adb.cloud.driver=jdbc:mysql" ${CONFDIR}/${DBPROPS}
+    grep -s -q "db.usage.driver=jdbc:mysql" ${CONFDIR}/${DBPROPS} || sed -i -e "\$adb.usage.driver=jdbc:mysql" ${CONFDIR}/${DBPROPS}
+    grep -s -q "db.simulator.driver=jdbc:mysql" ${CONFDIR}/${DBPROPS} || sed -i -e "\$adb.simulator.driver=jdbc:mysql" ${CONFDIR}/${DBPROPS}
 fi
 
 #DEBHELPER#
diff --git a/packaging/centos63/cloud.spec b/packaging/centos63/cloud.spec
index 36d45f2e0b3..95562369233 100644
--- a/packaging/centos63/cloud.spec
+++ b/packaging/centos63/cloud.spec
@@ -439,9 +439,9 @@ if [ "$1" == "1" ] ; then
     /sbin/chkconfig --level 345 cloudstack-management on > /dev/null 2>&1 || true
 fi
 
-grep "db.cloud.driver=jdbc:mysql" /etc/cloudstack/management/db.properties > /dev/null|| echo "db.cloud.driver=jdbc:mysql" >> /etc/cloudstack/management/db.properties
-grep "db.usage.driver=jdbc:mysql" /etc/cloudstack/management/db.properties > /dev/null|| echo "db.usage.driver=jdbc:mysql" >> /etc/cloudstack/management/db.properties
-grep "db.simulator.driver=jdbc:mysql" /etc/cloudstack/management/db.properties > /dev/null|| echo "db.simulator.driver=jdbc:mysql" >> /etc/cloudstack/management/db.properties
+grep -s -q "db.cloud.driver=jdbc:mysql" "%{_sysconfdir}/%{name}/management/db.properties" || sed -i -e "\$adb.cloud.driver=jdbc:mysql" "%{_sysconfdir}/%{name}/management/db.properties"
+grep -s -q "db.usage.driver=jdbc:mysql" "%{_sysconfdir}/%{name}/management/db.properties" || sed -i -e "\$adb.usage.driver=jdbc:mysql" db.properties
+grep -s -q "db.simulator.driver=jdbc:mysql" "%{_sysconfdir}/%{name}/management/db.properties" || sed -i -e "\$adb.simulator.driver=jdbc:mysql" "%{_sysconfdir}/%{name}/management/db.properties"
 
 if [ ! -f %{_datadir}/cloudstack-common/scripts/vm/hypervisor/xenserver/vhd-util ] ; then
     echo Please download vhd-util from http://download.cloud.com.s3.amazonaws.com/tools/vhd-util and put it in 
diff --git a/packaging/centos7/cloud.spec b/packaging/centos7/cloud.spec
index 15ad8dea4e0..7c093f937c8 100644
--- a/packaging/centos7/cloud.spec
+++ b/packaging/centos7/cloud.spec
@@ -396,9 +396,9 @@ if [ "$1" == "1" ] ; then
     /usr/bin/systemctl on cloudstack-management > /dev/null 2>&1 || true
 fi
 
-grep "db.cloud.driver=jdbc:mysql" /etc/cloudstack/management/db.properties > /dev/null|| echo "db.cloud.driver=jdbc:mysql" >> /etc/cloudstack/management/db.properties
-grep "db.usage.driver=jdbc:mysql" /etc/cloudstack/management/db.properties > /dev/null|| echo "db.usage.driver=jdbc:mysql" >> /etc/cloudstack/management/db.properties
-grep "db.simulator.driver=jdbc:mysql" /etc/cloudstack/management/db.properties > /dev/null|| echo "db.simulator.driver=jdbc:mysql" >> /etc/cloudstack/management/db.properties
+grep -s -q "db.cloud.driver=jdbc:mysql" "%{_sysconfdir}/%{name}/management/db.properties" || sed -i -e "\$adb.cloud.driver=jdbc:mysql" "%{_sysconfdir}/%{name}/management/db.properties"
+grep -s -q "db.usage.driver=jdbc:mysql" "%{_sysconfdir}/%{name}/management/db.properties" || sed -i -e "\$adb.usage.driver=jdbc:mysql" db.properties
+grep -s -q "db.simulator.driver=jdbc:mysql" "%{_sysconfdir}/%{name}/management/db.properties" || sed -i -e "\$adb.simulator.driver=jdbc:mysql" "%{_sysconfdir}/%{name}/management/db.properties"
 
 if [ ! -f %{_datadir}/cloudstack-common/scripts/vm/hypervisor/xenserver/vhd-util ] ; then
     echo Please download vhd-util from http://download.cloud.com.s3.amazonaws.com/tools/vhd-util and put it in