带ｕ盘启动2410开发板不能运行ｑｔ

我把ｕ盘插在ｕｓｂ插槽上，ｒｅｓｅｔ2410开发板，在rc.local上已经添加了
/sbin/mount -t vfat /dev/scsi/host0/bus0/target0/lun0/part1 /u
/Qtopia/qtopia-free-1.7.0/bin/qt -qws
不过启动到一半的时候就停下来了，把ｕ盘拔掉可以运行qt程序。
错误提示如下：

....................
usb.c: registered new driver usbdevfs

usb.c: registered new driver hub

usb-ohci.c: USB OHCI at membase 0xe9000000, IRQ 26

usb.c: new USB bus registered, assigned bus number 1

hub.c: USB hub found

port #1 suspened!

port #0 alived!

hub.c: 1 port detected

usb.c: registered new driver usb_mouse

usbmouse.c: v1.6:USB HID Boot Protocol mouse driver

usb.c: registered new driver keyboard

usbkbd.c: :USB HID Boot Protocol keyboard driver

mice: PS/2 mouse device common for all mice

NET4: Linux TCP/IP 1.0 for NET4.0

IP Protocols: ICMP, UDP, TCP, IGMP

IP: routing cache hash table of 512 buckets, 4Kbytes

TCP: Hash tables configured (established 4096 bind 4096)

NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.

NetWinder Floating Point Emulator V0.95 (c) 1998-1999 Rebel.com

VFS: Mounted root (cramfs filesystem).

Mounted devfs on /dev

Freeing init memory: 72K

hub.c: USB new device connect on bus1/1, assigned device number 2

usb.c: USB device 2 (vend/prod 0xea0/0x6803) is not claimed by any active driver.

Reading data from NAND FLASH without ECC is not recommended

mount /etc as ramfs
re-create the /etc/mtab entries
Reading data from NAND FLASH without ECC is not recommended

UDA1341 audio driver initialized

Initializing USB Mass Storage driver...

usb.c: registered new driver usb-storage

scsi0 : SCSI emulation for USB Mass Storage devices

  Vendor: OTi       Model: Ultra Floppy      Rev: 1.11

  Type:   Direct-Access                      ANSI SCSI revision: 02

Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0

SCSI device sda: 32256 512-byte hdwr sectors (17 MB)

sda: Write Protect is off

Partition check:

/dev/scsi/host0/bus0/target0/lun0: p1 p2 p3 p4

USB Mass Storage support registered.

Linux video capture interface: v1.00

video_dev: unable to get major 81

insmod: init_module: videodev: Input/output error
usb.c: registered new driver ov511

ov511.c: v1.48a for Linux 2.4 : OV511 USB Camera Driver

mount: Mounting none on /proc/bus/usb failed: No such file or directory
cramfs: wrong magic

mount: Mounting /dev/mtdblock/3 on /tmp/disk3 failed: Invalid argument

init started:  BusyBox v0.60.5 (2003.05.12-11:53+0000) multi-c

到这里就停下来了！！谁知道怎么解决！　　　　　　

cramfs 驱动是不是崩溃了　　　　　　

如果ｕ盘不挂着，可以自动运行程序，提示信息如下：
usb.c: registered new driver usbdevfs

usb.c: registered new driver hub

usb-ohci.c: USB OHCI at membase 0xe9000000, IRQ 26

usb.c: new USB bus registered, assigned bus number 1

hub.c: USB hub found

port #1 suspened!

port #0 alived!

hub.c: 1 port detected

usb.c: registered new driver usb_mouse

usbmouse.c: v1.6:USB HID Boot Protocol mouse driver

usb.c: registered new driver keyboard

usbkbd.c: :USB HID Boot Protocol keyboard driver

mice: PS/2 mouse device common for all mice

NET4: Linux TCP/IP 1.0 for NET4.0

IP Protocols: ICMP, UDP, TCP, IGMP

IP: routing cache hash table of 512 buckets, 4Kbytes

TCP: Hash tables configured (established 4096 bind 4096)

NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.

NetWinder Floating Point Emulator V0.95 (c) 1998-1999 Rebel.com

VFS: Mounted root (cramfs filesystem).

Mounted devfs on /dev

Freeing init memory: 72K

Reading data from NAND FLASH without ECC is not recommended

mount /etc as ramfs
re-create the /etc/mtab entries
UDA1341 audio driver initialized

Reading data from NAND FLASH without ECC is not recommended

Initializing USB Mass Storage driver...

usb.c: registered new driver usb-storage

USB Mass Storage support registered.

Linux video capture interface: v1.00

video_dev: unable to get major 81

insmod: init_module: videodev: Input/output error
usb.c: registered new driver ov511

ov511.c: v1.48a for Linux 2.4 : OV511 USB Camera Driver

mount: Mounting none on /proc/bus/usb failed: No such file or directory
cramfs: wrong magic

mount: Mounting /dev/mtdblock/3 on /tmp/disk3 failed: Invalid argument

init started:  BusyBox v0.60.5 (2003.05.12-11:53+0000) multi-cll binary
Reading data from NAND FLASH without ECC is not recommended


Please press Enter to activate this console. /bin/cp: will not create hard link `/tmp/Applications/Network/modules' to directory `/tmp/Applications/AlarmServer'
/bin/cp: will not create hard link `/tmp/Documents' to directory `/tmp/Applications/qimpen'
Could not open mime.types file, "etc/mime.types", for reading
/usr/etc/rc.local: line 16: /sbin/mount: No such file or directory
Reading data from NAND FLASH without ECC is not recommended

Reading data from NAND FLASH without ECC is not recommended

Reading data from NAND FLASH without ECC is not recommended

[9;0][?33l[?25l[?25lI have created thransfer file thread!
I have created timer play thread!
I have created serial thread!　　　　　　

如果可以运行shell,手动运行一下就知道是不是cramfs驱动崩溃了　　　　　　

如果插着ｕ盘的时候系统启动到那里是进入不了ｓｈｅｌｌ的，你说cramfs驱动崩溃是怎么回事，如果是要怎么解决？