diff --git a/postinstall_runner_action.cc b/postinstall_runner_action.cc
index 21d7231..9a84563 100644
--- a/postinstall_runner_action.cc
+++ b/postinstall_runner_action.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -58,7 +58,6 @@
     vector<string> command;
     command.push_back(temp_dir + kPostinstallScript);
     command.push_back(install_device);
-    command.push_back(precommit_ ? "" : "--postcommit");
     rc = 0;
     TEST_AND_RETURN(Subprocess::SynchronousExec(command, &rc));
     bool success = (rc == 0);
diff --git a/postinstall_runner_action.h b/postinstall_runner_action.h
index 1169af9..c2498e0 100644
--- a/postinstall_runner_action.h
+++ b/postinstall_runner_action.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -28,7 +28,7 @@
 
 class PostinstallRunnerAction : public Action<PostinstallRunnerAction> {
  public:
-  explicit PostinstallRunnerAction(bool precommit) : precommit_(precommit) {}
+  PostinstallRunnerAction() {}
   typedef ActionTraits<PostinstallRunnerAction>::InputObjectType
       InputObjectType;
   typedef ActionTraits<PostinstallRunnerAction>::OutputObjectType
@@ -44,10 +44,6 @@
   std::string Type() const { return StaticType(); }
 
  private:
-  // If true, this action runs before we've committed to the new update
-  // (by marking it as bootable in the partition table).
-  bool precommit_;
-
   DISALLOW_COPY_AND_ASSIGN(PostinstallRunnerAction);
 };
 
diff --git a/postinstall_runner_action_unittest.cc b/postinstall_runner_action_unittest.cc
index 578f7f4..55fe79f 100644
--- a/postinstall_runner_action_unittest.cc
+++ b/postinstall_runner_action_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -116,7 +116,7 @@
   InstallPlan install_plan;
   install_plan.install_path = dev;
   feeder_action.set_obj(install_plan);
-  PostinstallRunnerAction runner_action(true);
+  PostinstallRunnerAction runner_action;
   BondActions(&feeder_action, &runner_action);
   ObjectCollectorAction<InstallPlan> collector_action;
   BondActions(&runner_action, &collector_action);
@@ -153,7 +153,7 @@
 // Death tests don't seem to be working on Hardy
 TEST_F(PostinstallRunnerActionTest, DISABLED_RunAsRootDeathTest) {
   ASSERT_EQ(0, getuid());
-  PostinstallRunnerAction runner_action(true);
+  PostinstallRunnerAction runner_action;
   ASSERT_DEATH({ runner_action.TerminateProcessing(); },
                "postinstall_runner_action.h:.*] Check failed");
 }
diff --git a/update_attempter.cc b/update_attempter.cc
index a108001..ef6a949 100644
--- a/update_attempter.cc
+++ b/update_attempter.cc
@@ -159,10 +159,8 @@
                              new OmahaEvent(
                                  OmahaEvent::kTypeUpdateDownloadFinished),
                              new LibcurlHttpFetcher));
-  shared_ptr<PostinstallRunnerAction> postinstall_runner_action_precommit(
-      new PostinstallRunnerAction(true));
-  shared_ptr<PostinstallRunnerAction> postinstall_runner_action_postcommit(
-      new PostinstallRunnerAction(false));
+  shared_ptr<PostinstallRunnerAction> postinstall_runner_action(
+      new PostinstallRunnerAction);
   shared_ptr<OmahaRequestAction> update_complete_action(
       new OmahaRequestAction(prefs_,
                              omaha_request_params_,
@@ -181,10 +179,7 @@
   actions_.push_back(shared_ptr<AbstractAction>(download_started_action));
   actions_.push_back(shared_ptr<AbstractAction>(download_action));
   actions_.push_back(shared_ptr<AbstractAction>(download_finished_action));
-  actions_.push_back(shared_ptr<AbstractAction>(
-      postinstall_runner_action_precommit));
-  actions_.push_back(shared_ptr<AbstractAction>(
-      postinstall_runner_action_postcommit));
+  actions_.push_back(shared_ptr<AbstractAction>(postinstall_runner_action));
   actions_.push_back(shared_ptr<AbstractAction>(update_complete_action));
 
   // Enqueue the actions
@@ -204,9 +199,7 @@
   BondActions(kernel_filesystem_copier_action.get(),
               download_action.get());
   BondActions(download_action.get(),
-              postinstall_runner_action_precommit.get());
-  BondActions(postinstall_runner_action_precommit.get(),
-              postinstall_runner_action_postcommit.get());
+              postinstall_runner_action.get());
 
   SetStatusAndNotify(UPDATE_STATUS_CHECKING_FOR_UPDATE);
   processor_->StartProcessing();
diff --git a/update_attempter_unittest.cc b/update_attempter_unittest.cc
index eec342d..53ffc89 100644
--- a/update_attempter_unittest.cc
+++ b/update_attempter_unittest.cc
@@ -85,7 +85,7 @@
   FilesystemCopierAction filesystem_copier_action(false);
   EXPECT_EQ(kActionCodeFilesystemCopierError,
             GetErrorCodeForAction(&filesystem_copier_action, kActionCodeError));
-  PostinstallRunnerAction postinstall_runner_action(true);
+  PostinstallRunnerAction postinstall_runner_action;
   EXPECT_EQ(kActionCodePostinstallRunnerError,
             GetErrorCodeForAction(&postinstall_runner_action,
                                   kActionCodeError));
@@ -171,7 +171,6 @@
     DownloadAction::StaticType(),
     OmahaRequestAction::StaticType(),
     PostinstallRunnerAction::StaticType(),
-    PostinstallRunnerAction::StaticType(),
     OmahaRequestAction::StaticType()
   };
   for (size_t i = 0; i < arraysize(kActionTypes); ++i) {