diff --git a/scripts/release-portal-runtime-prod.sh b/scripts/release-portal-runtime-prod.sh
index e0f95f5..35b7359 100755
--- a/scripts/release-portal-runtime-prod.sh
+++ b/scripts/release-portal-runtime-prod.sh
@@ -406,6 +406,37 @@ say "校验产物完整性"
 cd "${INCOMING_DIR}"
 shasum -a 256 -c "$(basename "${SHA_FILE}")"
 
+copy_persisted_item() {
+  local src="$1"
+  local dest_root="$2"
+  local item="$3"
+  mkdir -p "${dest_root}"
+  if [[ -d "${src}" ]]; then
+    local pipe_status tar_status extract_status
+    set +e
+    (
+      cd "${APP_DIR}"
+      COPYFILE_DISABLE=1 tar --exclude='*.sock' -cf - "${item}"
+    ) | (
+      cd "${dest_root}"
+      COPYFILE_DISABLE=1 tar -xf -
+    )
+    pipe_status=("${PIPESTATUS[@]}")
+    tar_status=${pipe_status[0]:-0}
+    extract_status=${pipe_status[1]:-0}
+    set -e
+    if [[ "${extract_status}" -ne 0 ]]; then
+      echo "failed to extract persisted item ${item}" >&2
+      exit "${extract_status}"
+    fi
+    if [[ "${tar_status}" -ne 0 ]]; then
+      echo "warning: persisted item ${item} changed during copy; continuing with partial snapshot" >&2
+    fi
+  else
+    cp -a "${src}" "${dest_root}/"
+  fi
+}
+
 say "备份当前 live 全目录"
 COPYFILE_DISABLE=1 tar --exclude='Memind/.tailscale/*.sock' \
   -czf "${FULL_BACKUP_TAR}" -C "$(dirname "${APP_DIR}")" "$(basename "${APP_DIR}")"
@@ -425,7 +456,7 @@ for item in "${PERSISTED_ITEMS[@]}"; do
         tar -xf -
       )
     else
-      cp -a "${APP_DIR}/${item}" "${tmp_persist_dir}/$(dirname "${item}")/"
+      copy_persisted_item "${APP_DIR}/${item}" "${tmp_persist_dir}" "${item}"
     fi
   fi
 done
@@ -458,7 +489,7 @@ for item in "${PERSISTED_ITEMS[@]}"; do
         tar -xf -
       )
     else
-      cp -a "${APP_DIR}/${item}" "$(dirname "${RUNTIME_DIR}/${item}")/"
+      copy_persisted_item "${APP_DIR}/${item}" "${RUNTIME_DIR}" "${item}"
     fi
   fi
 done