diff --git a/interface/ri_oper.py b/interface/ri_oper.py
index 0d33009..20b9c7b 100644
--- a/interface/ri_oper.py
+++ b/interface/ri_oper.py
@@ -153,8 +153,7 @@ class Mount(Operation):
 	"""class for mount partition"""
 	def __init__(self,scr):
 		Operation.__init__(self,'mount partition',u'挂载分区','mount_partition.sh',scr)	
-		self.return_value[1]=("device node doesn't exist",u"设备结点不存在")
-		self.return_value[32]=("mount failure",u"挂载失败")
+		self.return_value[2]=("device node doesn't exist",u"设备结点不存在")
 
 	def get_stdin(self):
 		mount=''
@@ -195,7 +194,7 @@ class ConfigureFstab(Mount):
 	"""class for configure /etc/fstab"""
 	def __init__(self,scr):
 		Operation.__init__(self,'configure fstab',u'配置/etc/fstab文件','configure_fstab.sh',scr)
-		self.return_value[1]=("fstab doesn't exist",u"/etc/fstab文件不存在")
+		self.return_value[2]=("fstab doesn't exist",u"/etc/fstab文件不存在")
 
 class GenerateIssue(Operation):
 	"""class for generate /etc/issue"""