diff --git a/xCAT-rmc/lib/perl/TEAL/Semaphore.pm b/xCAT-rmc/lib/perl/TEAL/Semaphore.pm
new file mode 100644
index 000000000..5c912e625
--- /dev/null
+++ b/xCAT-rmc/lib/perl/TEAL/Semaphore.pm
@@ -0,0 +1,22 @@
+package TEAL::Semaphore;
+
+use strict;
+use warnings;
+require IPC::SysV;
+
+sub new {
+    my $class = shift;
+    my $self = {};
+    my $key = IPC::SysV::ftok("/var/log/teal",0x646c6100);
+    $self->{ID} = semget($key,1,0);
+    bless $self,$class;
+    return $self;
+}
+
+sub post {
+    my $self = shift;
+    my $op = pack("s!3",0,1,0);
+    semop $self->{ID},$op || die "failed to post"
+}
+
+1;
diff --git a/xCAT-rmc/xCAT-rmc.spec b/xCAT-rmc/xCAT-rmc.spec
index 46ab616e8..afc9f4354 100644
--- a/xCAT-rmc/xCAT-rmc.spec
+++ b/xCAT-rmc/xCAT-rmc.spec
@@ -35,6 +35,7 @@ mkdir -p $RPM_BUILD_ROOT/%{prefix}/sbin/rmcmon
 mkdir -p $RPM_BUILD_ROOT/install/postscripts
 mkdir -p $RPM_BUILD_ROOT/install/postscripts/rmcmon/resources
 mkdir -p $RPM_BUILD_ROOT/install/postscripts/rmcmon/scripts
+mkdir -p $RPM_BUILD_ROOT/%{prefix}/lib/perl/TEAL
 
 set +x
 cp plugin/* $RPM_BUILD_ROOT/%{prefix}/lib/perl/xCAT_monitoring
@@ -42,6 +43,9 @@ cp -r resources $RPM_BUILD_ROOT/%{prefix}/lib/perl/xCAT_monitoring/rmc
 
 cp scripts/* $RPM_BUILD_ROOT/%{prefix}/sbin/rmcmon
 chmod 755 $RPM_BUILD_ROOT/%{prefix}/sbin/rmcmon/*
+
+cp lib/perl/TEAL/* $RPM_BUILD_ROOT/%{prefix}/lib/perl/TEAL
+
 set -x
 
 cp scripts/configrmcnode $RPM_BUILD_ROOT/install/postscripts