diff --git a/backup-daemon/udiskdatabackupproxy.cpp b/backup-daemon/udiskdatabackupproxy.cpp
index 31a9031..56cf488 100755
--- a/backup-daemon/udiskdatabackupproxy.cpp
+++ b/backup-daemon/udiskdatabackupproxy.cpp
@@ -50,6 +50,7 @@ bool UDiskDataBackupProxy::checkEnvEx()
     backupPath.replace("//", "/");
     QStorageInfo udisk(backupPath);
     QString udisk_type = udisk.fileSystemType();
+    qDebug() << "udisk's filesystemtype is " << udisk_type;
     if (udisk_type == "vfat") {
         qCritical() << m_backupWrapper.m_prefixDestPath + " udisk's filesystemtype is vfat";
         emit checkResult(int(BackupResult::UDISK_FILESYSTEM_TYPE_IS_VFAT));
diff --git a/backup-daemon/udiskghostImageproxy.cpp b/backup-daemon/udiskghostImageproxy.cpp
index 2f0936d..3d7b85d 100755
--- a/backup-daemon/udiskghostImageproxy.cpp
+++ b/backup-daemon/udiskghostImageproxy.cpp
@@ -80,6 +80,7 @@ bool UDiskGhostImageProxy::checkEnvEx()
     backupPath.replace("//", "/");
     QStorageInfo udisk(backupPath);
     QString udisk_type = udisk.fileSystemType();
+    qDebug() << "udisk's filesystemtype is " << udisk_type;
     if (udisk_type == "vfat") {
         qCritical() << m_backupWrapper.m_prefixDestPath + " udisk's filesystemtype is vfat";
         emit checkResult(int(BackupResult::UDISK_FILESYSTEM_TYPE_IS_VFAT));
diff --git a/backup-daemon/udisksystembackupproxy.cpp b/backup-daemon/udisksystembackupproxy.cpp
index 94f3476..331a0ef 100755
--- a/backup-daemon/udisksystembackupproxy.cpp
+++ b/backup-daemon/udisksystembackupproxy.cpp
@@ -70,6 +70,7 @@ bool UDiskSystemBackupProxy::checkEnvEx()
     backupPath.replace("//", "/");
     QStorageInfo udisk(backupPath);
     QString udisk_type = udisk.fileSystemType();
+    qDebug() << "udisk's filesystemtype is " << udisk_type;
     if (udisk_type == "vfat") {
         qCritical() << m_backupWrapper.m_prefixDestPath + " udisk's filesystemtype is vfat";
         emit checkResult(int(BackupResult::UDISK_FILESYSTEM_TYPE_IS_VFAT));