diff --git a/backup-daemon/udisksystemrestoreproxy.cpp b/backup-daemon/udisksystemrestoreproxy.cpp
index 4c75fa4..0c41d73 100644
--- a/backup-daemon/udisksystemrestoreproxy.cpp
+++ b/backup-daemon/udisksystemrestoreproxy.cpp
@@ -288,7 +288,7 @@ QStringList UDiskSystemRestoreProxy::getRsyncArgs(SystemRestoreScene scene)
 bool UDiskSystemRestoreProxy::doPrepare()
 {
     // 移动设备系统备份如果有img，则需要先将img挂载到/backup/imgbackup目录
-    QString imgPath = m_backupPath + UDISK_MKSQUASHFS_IMG_NAME;
+    QString imgPath = m_backupPath + "/" + UDISK_MKSQUASHFS_IMG_NAME;
     if (Utils::filsExists(imgPath)) {
         // 1、检测目录/backup/imgbackup是否存在，不存在则创建此目录
         QString dstImgMountPath = Utils::getSysRootPath() + BACKUP_IMGBACKUP_PATH;
@@ -300,7 +300,7 @@ bool UDiskSystemRestoreProxy::doPrepare()
 
         // 3、将img文件挂载到/backup/imgbackup上
         MountBackupProcess *processMount = new MountBackupProcess;
-        if (processMount->mount(imgPath, dstImgMountPath)) {
+        if (!processMount->mount(imgPath, dstImgMountPath)) {
             emit checkResult(int(BackupResult::RESTOREDIR_PREPARE_FAILED));
             return false;
         }