diff --git a/backend/SystemUpdater/UpdateManagerDbus.py b/backend/SystemUpdater/UpdateManagerDbus.py
index 7ab4e3f..09265bd 100755
--- a/backend/SystemUpdater/UpdateManagerDbus.py
+++ b/backend/SystemUpdater/UpdateManagerDbus.py
@@ -53,6 +53,7 @@ UU_UPGRADE_MODE_BEFORE_SHUTDOWN = 1
 #dbus 建立
 class UpdateManagerDbusController(dbus.service.Object):
     """ this is a helper to provide the UpdateManagerIFace """
+    MOTHOD_RETURN_SUCCESS = "success"
 
     def __init__(self, parent, bus_name,
                 object_path=UPDATER_DBUS_PATH):
@@ -242,10 +243,10 @@ class UpdateManagerDbusController(dbus.service.Object):
             return self.parent.now_working
         except Exception as e:
             logging.error(str(e))
-            return False
+            return self.parent.now_working
 
     #apt install -f
-    @dbus.service.method(UPDATER_DBUS_INTERFACE,out_signature='b')
+    @dbus.service.method(UPDATER_DBUS_INTERFACE,out_signature='bs')
     def FixBrokenDepends(self):
         try:
             #处于更新和升级中的话 不进行更新
@@ -255,9 +256,10 @@ class UpdateManagerDbusController(dbus.service.Object):
             else:
                 logging.info(COLORMETHOR_PREFIX+'Method'+COLORLOG_SUFFIX+' FixBrokenDepends ...')
                 self.parent.start_fix_broken()
-                return True
-        except Exception:
-            return False
+                return True,self.MOTHOD_RETURN_SUCCESS
+        except Exception as e:
+            logging.error(str(e))
+            return False,str(e)
 
     #dpkg configure -a 
     @dbus.service.method(UPDATER_DBUS_INTERFACE,out_signature='b')
@@ -270,9 +272,10 @@ class UpdateManagerDbusController(dbus.service.Object):
             else:
                 logging.info(COLORMETHOR_PREFIX+'Method'+COLORLOG_SUFFIX+' FixIncompleteInstall ...')
                 self.parent.start_fix_incomplete()
-                return True
-        except Exception:
-            return False
+                return True,self.MOTHOD_RETURN_SUCCESS
+        except Exception as e:
+            logging.error(str(e))
+            return False,str(e)
     
     #更新的dbus
     @dbus.service.method(UPDATER_DBUS_INTERFACE,out_signature='bs',sender_keyword='sender')
@@ -287,7 +290,7 @@ class UpdateManagerDbusController(dbus.service.Object):
                 logging.info(COLORMETHOR_PREFIX+'Method'+COLORLOG_SUFFIX+' UpdateDetect sender:%s...',sender_name)
                 self._check_prohibit_user(sender_name)
                 self.parent.start_update()
-                return True,'success'
+                return True,self.MOTHOD_RETURN_SUCCESS
         except Exception as e:
             logging.error(str(e))
             return False,str(e)
@@ -341,7 +344,7 @@ class UpdateManagerDbusController(dbus.service.Object):
                 self._check_prohibit_user(sender_name)
                 logging.info(COLORMETHOR_PREFIX+'Method'+COLORLOG_SUFFIX+' DistUpgradeAll and not_resolver:%r...',not_resolver)
                 self.parent.start_install(InstallBackend.MODE_INSTALL_ALL,not_resolver)
-                return True,'success'
+                return True,self.MOTHOD_RETURN_SUCCESS
         except Exception as e:
             logging.info(str(e))
             return False,str(e)
@@ -361,11 +364,37 @@ class UpdateManagerDbusController(dbus.service.Object):
                 self._check_prohibit_user(sender_name)
                 logging.info(COLORMETHOR_PREFIX+'Method'+COLORLOG_SUFFIX+' DistUpgradeSystem and not_resolver:%r...',not_resolver)
                 self.parent.start_install(InstallBackend.MODE_INSTALL_SYSTEM,not_resolver)
-                return True,'success'
+                return True,self.MOTHOD_RETURN_SUCCESS
         except Exception as e:
             logging.error(False, str(e))
             return (False, str(e))
 
+    # #卸载包
+    # @dbus.service.method(UPDATER_DBUS_INTERFACE,in_signature='as',out_signature='bs',sender_keyword='sender')
+    # def PurgePackagesOnly(self,_purge_list, sender=None):
+    #     try:
+    #         sender_name = get_proc_from_dbus_name(sender)
+    #         logging.info(COLORMETHOR_PREFIX+'Method'+COLORLOG_SUFFIX+' DistPurgePackages Sender:%s and purge list is:%s...',sender_name,_purge_list)
+    #         (status, details) = PolicyKit_Authority(get_source_name_from_enum(sender_name)+_(" requires authentication to uninstall software packages."), sender)
+    #         if not status:
+    #             return False,details
+
+    #         purge_list = [str(pkg) for pkg in _purge_list]
+                
+    #         # 处于更新和升级中的话 不进行升级
+    #         if self.parent.now_working != InstallBackend.ACTION_DEFUALT_STATUS:
+    #             self.PurgePackagesFinished(False,_("Other tasks are being updated and upgraded, please uninstall them later."),'')
+    #             logging.warning('PurgePackages In the process of updating or Upgrading...')
+    #             return False,'PurgePackages In the process of updating or Upgrading...'
+    #         else:
+    #             self._check_prohibit_user(sender_name)
+
+    #             self.parent.start_purge_pkgs(purge_list)
+    #             return True,self.MOTHOD_RETURN_SUCCESS
+    #     except Exception as e:
+    #         logging.error(str(e))
+    #         return False,str(e)
+
     #卸载包
     @dbus.service.method(UPDATER_DBUS_INTERFACE,in_signature='asss',out_signature='bs',sender_keyword='sender')
     def PurgePackages(self,_purge_list,cur_user,user_lang = '', sender=None):
@@ -381,7 +410,7 @@ class UpdateManagerDbusController(dbus.service.Object):
                 #合法性的校验
                 if input_lang == None or input_lang == '':
                     logging.info("The incoming language is Illegal...")
-                    return self.parent.now_working
+                    return False,"The incoming language is Illegal..."
 
                 #处于更新和升级中的话 不进行更新
                 if input_lang != local_language or input_lang != local_lang:
@@ -415,7 +444,7 @@ class UpdateManagerDbusController(dbus.service.Object):
                 self._check_prohibit_user(sender_name)
 
                 self.parent.start_purge_pkgs(purge_list)
-                return True,'success'
+                return True,self.MOTHOD_RETURN_SUCCESS
         except Exception as e:
             logging.error(str(e))
             return False,str(e)
@@ -447,7 +476,7 @@ class UpdateManagerDbusController(dbus.service.Object):
 
 
     # 安装本地deb包
-    @dbus.service.method(UPDATER_DBUS_INTERFACE,in_signature='ssbbs',out_signature='b',sender_keyword='sender')
+    @dbus.service.method(UPDATER_DBUS_INTERFACE,in_signature='ssbbs',out_signature='bs',sender_keyword='sender')
     def InstallDebFile(self,source = "unKnown", path = "", _check_local_dep = False, _auto_satisfy = False, user_lang = '', sender=None):
         try:
             #当传入为空时 直接返回
@@ -461,7 +490,7 @@ class UpdateManagerDbusController(dbus.service.Object):
                 #合法性的校验
                 if input_lang == None or input_lang == '':
                     logging.info("The incoming language is Illegal...")
-                    return self.parent.now_working
+                    return False,"The incoming language is Illegal..."
 
                 #处于更新和升级中的话 不进行更新
                 if input_lang != local_language or input_lang != local_lang:
@@ -481,23 +510,23 @@ class UpdateManagerDbusController(dbus.service.Object):
                                         check_local_dep,auto_satisfy,user_lang,sender_name)
             logging.info("Will install: %s.",path)
             self.parent.start_deb_install(deb_path, _check_local_dep, _auto_satisfy, source, sender)
-            return True
+            return True,self.MOTHOD_RETURN_SUCCESS
         except Exception as e:
             logging.error(str(e))
-            return (False)
+            return False,str(e)
     
     # commitpackages
-    @dbus.service.method(UPDATER_DBUS_INTERFACE,in_signature='as',out_signature='b',sender_keyword='sender')
+    @dbus.service.method(UPDATER_DBUS_INTERFACE,in_signature='as',out_signature='bs',sender_keyword='sender')
     def InstallPackages(self, pkg_list = [], sender=None):
         try:
             sender_name = get_proc_from_dbus_name(sender)
             self._check_prohibit_user(sender_name)
             logging.info(COLORMETHOR_PREFIX+'Method'+COLORLOG_SUFFIX+' InstallPackages : [%s],  InstallPackages sender: %s .', ", ".join(list(pkg_list)), sender_name)
             self.parent.start_back_upgrade(pkg_list)
+            return True,self.MOTHOD_RETURN_SUCCESS
         except Exception as e:
             logging.error(str(e))
             return (False)
-        return True
 
     #更新的dbus
     @dbus.service.method(UPDATER_DBUS_INTERFACE,out_signature='bs',sender_keyword='sender')
diff --git a/backend/data/system-updater-coverable.conf b/backend/data/system-updater-coverable.conf
index aa976a2..f03d938 100644
--- a/backend/data/system-updater-coverable.conf
+++ b/backend/data/system-updater-coverable.conf
@@ -1,3 +1,4 @@
+#此配置文件内的所有配置项，在新装时都会被替换掉
 [SystemStatusCover]
 close_source_filter = False
 priority_upgrade_restart = True