diff --git a/EventFilter/Utilities/plugins/RawEventFileWriterForBU.cc b/EventFilter/Utilities/plugins/RawEventFileWriterForBU.cc
index c869ab12d7822..4f7e0126f02ed 100644
--- a/EventFilter/Utilities/plugins/RawEventFileWriterForBU.cc
+++ b/EventFilter/Utilities/plugins/RawEventFileWriterForBU.cc
@@ -107,12 +107,6 @@ void RawEventFileWriterForBU::doOutputEvent(FRDEventMsgView const& msg) {
   //  cms::Adler32((const char*) msg.startAddress(), msg.size(), adlera_, adlerb_);
 }
 
-void RawEventFileWriterForBU::doOutputEventFragment(unsigned char* dataPtr, unsigned long dataSize) {
-  throw cms::Exception("RawEventFileWriterForBU", "doOutputEventFragment") << "Unsupported output mode ";
-
-  //cms::Adler32((const char*) dataPtr, dataSize, adlera_, adlerb_);
-}
-
 void RawEventFileWriterForBU::initialize(std::string const& destinationDir, std::string const& name, int ls) {
   destinationDir_ = destinationDir;
 
diff --git a/EventFilter/Utilities/plugins/RawEventFileWriterForBU.h b/EventFilter/Utilities/plugins/RawEventFileWriterForBU.h
index fd3316bce9fc0..808df20ae7c59 100644
--- a/EventFilter/Utilities/plugins/RawEventFileWriterForBU.h
+++ b/EventFilter/Utilities/plugins/RawEventFileWriterForBU.h
@@ -12,8 +12,10 @@
 #include <cstdio>
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <unistd.h>
 
-#include "boost/shared_array.hpp"
+#include <memory>
+#include <vector>
 
 class RawEventFileWriterForBU {
 public:
@@ -22,9 +24,7 @@ class RawEventFileWriterForBU {
   ~RawEventFileWriterForBU();
 
   void doOutputEvent(FRDEventMsgView const& msg);
-  void doOutputEvent(boost::shared_array<unsigned char>& msg){};
-  void doOutputEventFragment(unsigned char* dataPtr, unsigned long dataSize);
-  //void doFlushFile();
+
   uint32 adler32() const { return (adlerb_ << 16) | adlera_; }
 
   void start() {}
diff --git a/EventFilter/Utilities/plugins/RawEventOutputModuleForBU.h b/EventFilter/Utilities/plugins/RawEventOutputModuleForBU.h
index 3eb1240c66275..292daf33ddaf2 100644
--- a/EventFilter/Utilities/plugins/RawEventOutputModuleForBU.h
+++ b/EventFilter/Utilities/plugins/RawEventOutputModuleForBU.h
@@ -18,7 +18,8 @@
 #include "FWCore/Utilities/interface/Adler32Calculator.h"
 #include "EventFilter/Utilities/interface/crc32c.h"
 
-#include "boost/shared_array.hpp"
+#include <memory>
+#include <vector>
 
 class FRDEventMsgView;
 template <class Consumer>
@@ -107,8 +108,9 @@ void RawEventOutputModuleForBU<Consumer>::write(edm::EventForOutput const& e) {
 
   totsize += expectedSize;
   // build the FRDEvent into a temporary buffer
-  boost::shared_array<unsigned char> workBuffer(new unsigned char[expectedSize + 256]);
-  uint32* bufPtr = (uint32*)workBuffer.get();
+  std::unique_ptr<std::vector<unsigned char>> workBuffer(
+      std::make_unique<std::vector<unsigned char>>(expectedSize + 256));
+  uint32* bufPtr = (uint32*)(workBuffer.get()->data());
   *bufPtr++ = (uint32)frdVersion_;  // version number
   *bufPtr++ = (uint32)e.id().run();
   *bufPtr++ = (uint32)e.luminosityBlock();
@@ -152,12 +154,10 @@ void RawEventOutputModuleForBU<Consumer>::write(edm::EventForOutput const& e) {
   }
 
   // create the FRDEventMsgView and use the template consumer to write it out
-  FRDEventMsgView msg(workBuffer.get());
+  FRDEventMsgView msg(workBuffer.get()->data());
   writtensize += msg.size();
 
-  if (templateConsumer_->sharedMode())
-    templateConsumer_->doOutputEvent(workBuffer);
-  else
+  if (!templateConsumer_->sharedMode())
     templateConsumer_->doOutputEvent(msg);
 }