diff --git a/services/updater_main.cpp b/services/updater_main.cpp
index 8abf00a4bfa38394fb81f820ed752aa438d9238d..5f354fedfccee4438c6b8e21fff30d51ccf71e51 100644
--- a/services/updater_main.cpp
+++ b/services/updater_main.cpp
@@ -488,6 +488,11 @@ UpdaterStatus DoUpdatePackages(UpdaterParams &upParams)
     return status;
 }
 
+__attribute__((weak)) const char* GetBlockVerifyRes()
+{
+    return "";
+}
+
 static void PostUpdatePackages(UpdaterParams &upParams, bool updateResult)
 {
     std::string writeBuffer;
@@ -521,6 +526,8 @@ static void PostUpdatePackages(UpdaterParams &upParams, bool updateResult)
     if (writeBuffer != "") {
         writeBuffer.pop_back();
     }
+    std::string blockVerifyRes = GetBlockVerifyRes();
+    writeBuffer = blockVerifyRes + writeBuffer;
     LOG(INFO) << "post over, writeBuffer = " << writeBuffer;
     WriteDumpResult(writeBuffer, UPDATER_RESULT_FILE);
     DeleteInstallTimeFile();
diff --git a/services/updater_main.h b/services/updater_main.h
index 699df7ee794b417234a1b392cf3effdcabb0332d..c9219ec7585bf7a2bd7ba7dd9e359842a6c799c9 100644
--- a/services/updater_main.h
+++ b/services/updater_main.h
@@ -70,6 +70,7 @@ int32_t VerifySpecialPkgs([[maybe_unused]]UpdaterParams &upParams);
 void UpdaterVerifyFailEntry(bool verifyret);
 bool IsSpareBoardBoot(void);
 bool IsNeedWipe();
+const char* GetBlockVerifyRes();
 #ifdef __cplusplus
 #if __cplusplus
 }
diff --git a/test/unittest/package/pkg_manager_unittest.cpp b/test/unittest/package/pkg_manager_unittest.cpp
index 761559694b5cce2687560db62006e992d604ed58..1fcc53d249126952369b98cda373e02fc4bba0bb 100755
--- a/test/unittest/package/pkg_manager_unittest.cpp
+++ b/test/unittest/package/pkg_manager_unittest.cpp
@@ -643,7 +643,7 @@ HWTEST_F(PkgMangerTest, TestLz4Buffer, TestSize.Level1)
     EXPECT_EQ(0, test.TestDecompressLz4(lz4Info, uncompressedData, digest));
     int32_t ret = 0;
     for (int32_t i = 0; i < LZ4F_MAX_BLOCKID; i++) {
-        lz4Info.compressionLevel = 2;
+        lz4Info.compressionLevel = 1;
         lz4Info.blockSizeID = i;
         ret = test.TestCompressBuffer(lz4Info.fileInfo, uncompressedData, digest);
         if (ret == 0) {