为什么我的PS3连接FTP的时候总显示这个？

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WinSock 2.0 -- OpenSSL 0.9.8i 15 Sep 2008
[右] 正在连接到 192.168.122.100 -> IP=192.168.122.100 PORT=21
[右] 已连接到 192.168.122.100
[右] 220-PS3 FTP Server v1.0.3
[右] 220 Copyright (c) 2007 Sony Computer Entertainment Inc.
[右] USER anonymous
[右] 230 USER OK
[右] SYST
[右] 215 UNIX Type: L8 Version: scee_ps3_ftpd-1.0.3
[右] FEAT
[右] 502 Unimplemented or invalid command
[右] REST 100
[右] 350 REST 100 OK
[右] REST 0
[右] 350 REST OK
[右] PWD
[右] 257 Current working directory is "/"
[右] TYPE A
[右] 200 TYPE OK
[右] PASV
[右] 502 Unimplemented or invalid command
[右] 监听端口: 2384, 等待连接。
[右] PORT 192,168,1,123,9,80
[右] 200 PORT set to 192.168.1.123:5004
[右] LIST -al
[右] 550 File system error (stat ENOTMOUNTED)
[右] LIST
什么意思啊？
麻烦高手解答
多谢

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