diff --git a/oam/install_scripts/columnstore b/oam/install_scripts/columnstore
index c236be011..cc0411915 100644
--- a/oam/install_scripts/columnstore
+++ b/oam/install_scripts/columnstore
@@ -81,7 +81,10 @@ start() {
 		exit 0
 	fi
 
-	($SUDO mkdir -p /var/lock/subsys && $SUDO chmod 755 /var/lock/subsys && $SUDO touch /var/lock/subsys/columnstore) >/dev/null 2>&1
+	if [ "$user" == "root" ]; then
+		(mkdir -p /var/lock/subsys && touch /var/lock/subsys/columnstore) >/dev/null 2>&1
+	else
+                ($SUDO mkdir -p /var/lock/subsys && $SUDO chmod 777 /var/lock/subsys $SUDO touch /var/lock/subsys/columnstore) >/dev/null 2>&1
 
 	if [ -x $InstallDir/bin/columnstore.pre-start ]; then
 		$InstallDir/bin/columnstore.pre-start
diff --git a/oam/install_scripts/post-install b/oam/install_scripts/post-install
index c1df3f2b3..f73536170 100755
--- a/oam/install_scripts/post-install
+++ b/oam/install_scripts/post-install
@@ -215,7 +215,7 @@ else
 	$SUDO mkdir /var/lock/subsys > /dev/null 2>&1
 	$SUDO chmod 777 /var/lock/subsys > /dev/null 2>&1
 	$SUDO rm -f /var/lock/subsys/mysql-Columnstore
-	$SUDO chmod 644 /etc/fstab	
+	$SUDO chmod 666 /etc/fstab	
 
 	sed -i -e s@/usr/local/mariadb/columnstore@$installdir@g $installdir/bin/columnstore.def
 	$SUDO cp $installdir/bin/columnstore.def /etc/default/columnstore
diff --git a/procmon/main.cpp b/procmon/main.cpp
index b521a9008..9e71c8b29 100644
--- a/procmon/main.cpp
+++ b/procmon/main.cpp
@@ -121,7 +121,7 @@ int main(int argc, char **argv)
 	// change permissions on /dev/shm
 	if ( !rootUser)
 	{
-		string cmd = "sudo chmod 755 /dev/shm >/dev/null 2>&1";
+		string cmd = "sudo chmod 777 /dev/shm >/dev/null 2>&1";
 		system(cmd.c_str());
 	}
 
diff --git a/procmon/processmonitor.cpp b/procmon/processmonitor.cpp
index dbcf4225c..551e124c5 100644
--- a/procmon/processmonitor.cpp
+++ b/procmon/processmonitor.cpp
@@ -952,7 +952,7 @@ void ProcessMonitor::processMessage(messageqcpp::ByteStream msg, messageqcpp::IO
 					// change permissions on /dev/shm
 					if ( !rootUser)
 					{
-						cmd = "sudo chmod 755 /dev/shm >/dev/null 2>&1";				
+						cmd = "sudo chmod 777 /dev/shm >/dev/null 2>&1";				
 						system(cmd.c_str());
 					}