M9000-S 升级软件版本命令补不全

<H3C>boot-loader file flash:/?

^ % Unrecognized command found at '^' position

M9008-S设备，通过boot-loader file命令进行升级时，flash可以补全，但是flash之后无法补全，/和问号之间没有空格，问号也是英文的问号，且dir查看时flash中是有文件的。请问可能是什么原因导致？谢谢

dir中有文件，^指的都是flash处下面排版有点问题

<H3C>dir

Directory of flash:

0 -rw- 848896 Sep 12 2019 16:00:54 M9000S-CMW710-SYSTEM-R9712P20H01.bin

1 -rw- 139169792 Sep 12 2019 16:00:51 NSQM2FWDFG0_FWDFGB0_FWDFGC0-BLADE4FWM9000SF-CMW710-R9712P20.ipe

2 -rw- 193924096 Sep 12 2019 16:01:59 NSQM2MPUC0_MPUD0_MPU12E0-SECPATH9000SM-CMW710-R9712P20.ipe

3 drw- - Jul 25 2019 11:00:21 diagfile

4 -rw- 735 Jul 25 2019 11:00:40 hostkey

5 -rw- 111720 Sep 11 2019 00:43:01 lbispinfo_v1.5.tp

6 drw- - Sep 11 2019 00:42:40 license

7 drw- - Jul 25 2019 11:00:21 logfile

8 drw- - Jul 25 2019 11:00:41 pki

9 drw- - Jul 25 2019 11:00:21 seclog

10 -rw- 591 Jul 25 2019 11:00:41 serverkey

11 drw- - Jul 25 2019 11:00:36 versionInfo 1048576 KB total (720224 KB free)

<H3C>boot-loader file flash:/

<H3C>boot-loader file flash:/

<H3C>boot-loader file flash:/

<H3C>boot-loader file flash:/?

^ % Unrecognized command found at '^' position.

<H3C>boot-loader file flash:/ ?

^ % Wrong parameter found at '^' position.

<H3C>boot-loader file flash:/NSQM2MPUC0_MPUD0_MPU12E0-SECPATH9000SM-CMW710-R9712 P20.ipe ?

^ % Wrong parameter found at '^' position.

<H3C>boot-loader file flash:/NSQM2MPUC0_MPUD0_MPU12E0-SECPATH9000SM-CMW710-R9712 P20.ipe

^ % Wrong parameter found at '^' position.