diff --git a/common/config-parser/src/types/spec.rs b/common/config-parser/src/types/spec.rs
index 76caa7e84..df70f8d28 100644
--- a/common/config-parser/src/types/spec.rs
+++ b/common/config-parser/src/types/spec.rs
@@ -211,15 +211,11 @@ impl Genesis {
     }
 
     pub fn generate_hardfork_info(&self) -> HardforkInfoInner {
-        let mut info = Into::<HardforkInfoInner>::into(HardforkInput {
+        let info = Into::<HardforkInfoInner>::into(HardforkInput {
             hardforks:    self.hardforks.clone(),
             block_number: 0,
         });
 
-        if info.flags.is_zero() {
-            info.flags = H256::from_low_u64_be(HardforkName::all().to_be());
-        }
-
         info
     }
 }
@@ -238,12 +234,24 @@ pub struct HardforkInput {
 
 impl From<HardforkInput> for HardforkInfoInner {
     fn from(value: HardforkInput) -> Self {
-        let flags = {
-            let r = value.hardforks.into_iter().fold(0, |acc, s| acc | s as u64);
+        let convert_fn = |hardforks: Vec<HardforkName>| -> H256 {
+            let r = hardforks.into_iter().fold(0, |acc, s| acc | s as u64);
 
             H256::from_low_u64_be(r.to_be())
         };
 
+        let flags = if value.hardforks.is_empty() {
+            H256::from_low_u64_be(HardforkName::all().to_be())
+        } else if value.hardforks.len() == 1 {
+            if value.hardforks[0] == HardforkName::None {
+                H256::zero()
+            } else {
+                convert_fn(value.hardforks)
+            }
+        } else {
+            convert_fn(value.hardforks)
+        };
+
         HardforkInfoInner {
             block_number: value.block_number,
             flags,
@@ -259,6 +267,6 @@ pub enum HardforkName {
 
 impl HardforkName {
     pub fn all() -> u64 {
-        HardforkName::None as u64 | HardforkName::Andromeda as u64
+        HardforkName::Andromeda as u64
     }
 }
diff --git a/core/executor/src/system_contract/metadata/store.rs b/core/executor/src/system_contract/metadata/store.rs
index d3d61c182..f8cbaef4b 100644
--- a/core/executor/src/system_contract/metadata/store.rs
+++ b/core/executor/src/system_contract/metadata/store.rs
@@ -18,14 +18,15 @@ use crate::{adapter::RocksTrieDB, MPTTrie, CURRENT_METADATA_ROOT};
 
 /// The metadata store does not follow the storage layout of EVM smart contract.
 /// It use MPT called Metadata MPT with the following layout:
-/// | key                  | value                    |
-/// | -------------------- | ------------------------ |
-/// | EPOCH_SEGMENT_KEY    | `EpochSegment.encode()`  |
-/// | CKB_RELATED_INFO_KEY | `CkbRelatedInfo.encode()`|
-/// | HARDFORK_KEY         | `HardforkInfo.encode()`  |
-/// | epoch_0.be_bytes()   | `Metadata.encode()`      |
-/// | epoch_1.be_bytes()   | `Metadata.encode()`      |
-/// | ...                  | ...                      |
+/// | key                  | value                                |
+/// | -------------------- | ------------------------------------ |
+/// | EPOCH_SEGMENT_KEY    | `EpochSegment.encode()`              |
+/// | CKB_RELATED_INFO_KEY | `CkbRelatedInfo.encode()`            |
+/// | HARDFORK_KEY         | `HardforkInfo.encode()`              |
+/// | epoch_0.be_bytes()   | `Metadata.encode()`                  |
+/// | epoch_1.be_bytes()   | `Metadata.encode()`                  |
+/// | CONSENSUS_CONFIG     | `version + ConsensesConfig.encode()` |
+/// | ...                  | ...                                  |
 ///
 /// All these data are stored in a the `c9` column family of RocksDB, and the
 /// root of the Metadata MPT is stored in the storage MPT of the metadata