diff --git a/.gitignore b/.gitignore
index 4290678..9d51529 100644
--- a/.gitignore
+++ b/.gitignore
@@ -29,3 +29,7 @@ config/tasks.db
 
 # Nuitka 编译产物
 bin/
+
+# dh 构建临时目录
+/debian/*/
+!/debian/source/
diff --git a/debian/7z-encrypt-client/DEBIAN/md5sums b/debian/7z-encrypt-client/DEBIAN/md5sums
index f0bcfd1..9f42108 100644
--- a/debian/7z-encrypt-client/DEBIAN/md5sums
+++ b/debian/7z-encrypt-client/DEBIAN/md5sums
@@ -2,7 +2,7 @@
 440c53f84f5722b5146959c8fc6d7a23  usr/bin/sz-config
 ec8cf0df841e479689ccb681f6168ccc  usr/bin/sz-transfer
 0ba5b8147990daa7fd07344952c42847  usr/bin/sz-tui
-78aed672b874d47ecb3e9dc12b6951a8  usr/share/7z-encrypt/backup.py
+1c8e2524738649398a4385a3f2a9e3c6  usr/share/7z-encrypt/backup.py
 dcb31e74e0a6ee8073337fc4fb2acf99  usr/share/7z-encrypt/config.py
 8a064c0b3c21d50812a3fd69a320d862  usr/share/7z-encrypt/crypto.py
 21062e04f8c7f4471881a39c489dfa73  usr/share/7z-encrypt/metadata.py
diff --git a/debian/7z-encrypt-client/usr/share/7z-encrypt/backup.py b/debian/7z-encrypt-client/usr/share/7z-encrypt/backup.py
index 22d06c5..b300d60 100644
--- a/debian/7z-encrypt-client/usr/share/7z-encrypt/backup.py
+++ b/debian/7z-encrypt-client/usr/share/7z-encrypt/backup.py
@@ -33,10 +33,10 @@ COMPRESS_SUFFIX = {".db", ".sqlite", ".sqlite3", ".sql", ".txt", ".json", ".xml"
 
 
 def _7z(args: list[str]) -> None:
-    """调系统 7z (p7zip-full), 失败抛异常"""
-    r = subprocess.run(["7z"] + args, capture_output=True, text=True, timeout=7200)
+    """调系统 7z (p7zip-full), 实时透传进度输出 (7z 自带百分比进度条)"""
+    r = subprocess.run(["7z"] + args)
     if r.returncode != 0:
-        raise RuntimeError(f"7z 失败: {r.stderr.strip()[-200:] or r.stdout.strip()[-200:]}")
+        raise RuntimeError(f"7z 失败 (exit {r.returncode})")
 
 
 def _cfg() -> dict[str, Any]: