diff --git a/backup-daemon/udiskdatabackupproxy.cpp b/backup-daemon/udiskdatabackupproxy.cpp
index 672d02d..fd4aff4 100755
--- a/backup-daemon/udiskdatabackupproxy.cpp
+++ b/backup-daemon/udiskdatabackupproxy.cpp
@@ -30,8 +30,10 @@ bool UDiskDataBackupProxy::checkEnvEx()
     qDebug() << "UDiskDataBackupProxy::checkEnv invoke begin";
 
     // 1、检查/backup分区是否挂载上(不管是本地磁盘还是u盘设备，都得保证/backup挂载上); 若没挂载，挂载
+    // 后来支持无备份分区
     MyMountProxy mountProxy;
-    if ( MountResult::MOUNTED != mountProxy.mountBackupPartition() ) {
+    MountResult mountStatus = mountProxy.mountBackupPartition();
+    if ( MountResult::MOUNTED !=  mountStatus && MountResult::CANNOT_GET_BACKUPUUID !=  mountStatus ) {
         emit checkResult(int(BackupResult::BACKUP_PARTITION_MOUNT_FAIL));
         return false;
     }
diff --git a/backup-daemon/udisksystembackupproxy.cpp b/backup-daemon/udisksystembackupproxy.cpp
index 2f7f777..a79e7f8 100755
--- a/backup-daemon/udisksystembackupproxy.cpp
+++ b/backup-daemon/udisksystembackupproxy.cpp
@@ -50,10 +50,12 @@ bool UDiskSystemBackupProxy::checkEnvEx()
     qDebug() << "UDiskSystemBackupProxy::checkEnv invoke begin";
 
     // 1、检查/backup分区是否挂载上(不管是本地磁盘还是u盘设备，都得保证/backup挂载上); 若没挂载，挂载
+    // 后来支持无备份分区
     MyMountProxy mountProxy;
-    if ( MountResult::MOUNTED != mountProxy.mountBackupPartition() ) {
-        // emit checkResult(int(BackupResult::BACKUP_PARTITION_MOUNT_FAIL));
-        // return false;
+    MountResult mountStatus = mountProxy.mountBackupPartition();
+    if ( MountResult::MOUNTED !=  mountStatus && MountResult::CANNOT_GET_BACKUPUUID !=  mountStatus ) {
+        emit checkResult(int(BackupResult::BACKUP_PARTITION_MOUNT_FAIL));
+        return false;
     }
 
     QString backupPath(m_backupWrapper.m_prefixDestPath);