按照开发板视频教程，能够烧录u-boot，以及uImage等，但到了跟文件系统就不行了，会出现如下提示：
##### u-boot-2010.03 Main menu by Hanson He #####
##### 上海嵌入式家园-开发板商城 #####
#####
www.embedclub.com #####
#####
http://embedclub.taobao.com #####
Hit any key to stop autoboot: 0
NAND read: device 0 offset 0x60000, size 0x500000
NAND read from offset 6000033fc2b14 failed 0
5242880 bytes read: ERROR
Wrong Image Format for bootm command
ERROR: can't get kernel image!
[u-boot@SMDK2440A]# printenv
bootcmd=nand read 0x30008000 60000 500000;bootm 0x30008000
bootdelay=1
baudrate=115200
ethaddr=08:08:11:18:12:27
ipaddr=192.168.1.226
gatewayip=192.168.1.1
netmask=255.255.255.0
embedclub=bmp d 70000
stdin=serial
stdout=serial
stderr=serial
lcdtype=w
ethact=dm9000
server=192.168.1.100
bootargs=console=ttySAC0 root=/dev/nfs nfsroot=192.168.1.100:/home/songhuilee/hui/source/root_qtopia ip=192.168.1.226:192.168.1.100:192.168.1.100:255.255.255.0:SMDK2440A.arm9.net:eth0:off
serverip=192.168.1.100
Environment size: 498/131068 bytes
[u-boot@SMDK2440A]# ping 192.168.1.100
dm9000 i/o: 0x20000300, id: 0x90000a46
DM9000: running in 16 bit mode
MAC: 08:08:11:18:12:27
operating at 100M full duplex mode
Using dm9000 device
ping failed; host 192.168.1.100 is not alive
[u-boot@SMDK2440A]# ping 192.168.1.100
dm9000 i/o: 0x20000300, id: 0x90000a46
DM9000: running in 16 bit mode
MAC: 08:08:11:18:12:27
operating at 100M full duplex mode
Using dm9000 device
host 192.168.1.100 is alive
[u-boot@SMDK2440A]# tftp 30008000 root_qtopia.img
dm9000 i/o: 0x20000300, id: 0x90000a46
DM9000: running in 16 bit mode
MAC: 08:08:11:18:12:27
operating at 100M full duplex mode
Using dm9000 device
TFTP from server 192.168.1.100; our IP address is 192.168.1.226
Filename 'root_qtopia.img'.
Load address: 0x30008000
Loading: T
TFTP error: 'File not found' (1)
Not retrying...
请大家指点一二，感激不尽！
