diff --git a/payload_consumer/delta_performer.cc b/payload_consumer/delta_performer.cc
index ca898d5..7dec48f 100644
--- a/payload_consumer/delta_performer.cc
+++ b/payload_consumer/delta_performer.cc
@@ -919,14 +919,7 @@
   }
 
   if (install_plan_->target_slot != BootControlInterface::kInvalidSlot) {
-    BootControlInterface::PartitionMetadata partition_metadata;
-    for (const InstallPlan::Partition& partition : install_plan_->partitions) {
-      partition_metadata.emplace(partition.name, partition.target_size);
-    }
-    if (!boot_control_->InitPartitionMetadata(install_plan_->target_slot,
-                                              partition_metadata)) {
-      LOG(ERROR) << "Unable to initialize partition metadata for slot "
-                 << BootControlInterface::SlotName(install_plan_->target_slot);
+    if (!InitPartitionMetadata()) {
       *error = ErrorCode::kInstallDeviceOpenError;
       return false;
     }
@@ -941,6 +934,33 @@
   return true;
 }
 
+bool DeltaPerformer::InitPartitionMetadata() {
+  bool metadata_initialized;
+  if (prefs_->GetBoolean(kPrefsDynamicPartitionMetadataInitialized,
+                         &metadata_initialized) &&
+      metadata_initialized) {
+    LOG(INFO) << "Skipping InitPartitionMetadata.";
+    return true;
+  }
+
+  BootControlInterface::PartitionMetadata partition_metadata;
+  for (const InstallPlan::Partition& partition : install_plan_->partitions) {
+    partition_metadata.emplace(partition.name, partition.target_size);
+  }
+
+  if (!boot_control_->InitPartitionMetadata(install_plan_->target_slot,
+                                            partition_metadata)) {
+    LOG(ERROR) << "Unable to initialize partition metadata for slot "
+               << BootControlInterface::SlotName(install_plan_->target_slot);
+    return false;
+  }
+  TEST_AND_RETURN_FALSE(
+      prefs_->SetBoolean(kPrefsDynamicPartitionMetadataInitialized, true));
+  LOG(INFO) << "InitPartitionMetadata done.";
+
+  return true;
+}
+
 bool DeltaPerformer::CanPerformInstallOperation(
     const chromeos_update_engine::InstallOperation& operation) {
   // If we don't have a data blob we can apply it right away.
@@ -1861,6 +1881,7 @@
     prefs->SetInt64(kPrefsResumedUpdateFailures, 0);
     prefs->Delete(kPrefsPostInstallSucceeded);
     prefs->Delete(kPrefsVerityWritten);
+    prefs->Delete(kPrefsDynamicPartitionMetadataInitialized);
   }
   return true;
 }
diff --git a/payload_consumer/delta_performer.h b/payload_consumer/delta_performer.h
index 38d2c43..cddfef4 100644
--- a/payload_consumer/delta_performer.h
+++ b/payload_consumer/delta_performer.h
@@ -271,6 +271,10 @@
   // it up.
   bool GetPublicKeyFromResponse(base::FilePath *out_tmp_key);
 
+  // After install_plan_ is filled with partition names and sizes, initialize
+  // metadata of partitions and map necessary devices before opening devices.
+  bool InitPartitionMetadata();
+
   // Update Engine preference store.
   PrefsInterface* prefs_;
 
diff --git a/payload_consumer/delta_performer_integration_test.cc b/payload_consumer/delta_performer_integration_test.cc
index ba5fa18..9368e11 100644
--- a/payload_consumer/delta_performer_integration_test.cc
+++ b/payload_consumer/delta_performer_integration_test.cc
@@ -697,6 +697,8 @@
       .WillRepeatedly(Return(true));
   EXPECT_CALL(prefs, SetString(kPrefsUpdateStateSignedSHA256Context, _))
       .WillRepeatedly(Return(true));
+  EXPECT_CALL(prefs, SetBoolean(kPrefsDynamicPartitionMetadataInitialized, _))
+      .WillRepeatedly(Return(true));
   if (op_hash_test == kValidOperationData && signature_test != kSignatureNone) {
     EXPECT_CALL(prefs, SetString(kPrefsUpdateStateSignatureBlob, _))
         .WillOnce(Return(true));