nfs下载uImage_nolcd时出现错误

我用的u-boot是2010的  2012的从哪下载呢？

我从网盘里找到一个U-Boot 2012.04.01 版本的，请问这个是最终版本么？因为我用的时候和以前的不太一样，按空格键不出现菜单了，只有如下所示的界面：
U-Boot 2012.04.01 (Dec 18 2012 - 04:44:13)

CPUID: 32440001
FCLK:      400 MHz
HCLK:      100 MHz
PCLK:       50 MHz
DRAM:  64 MiB
WARNING: Caches not enabled
Flash: 0 KB
NAND:  256 MiB
In:    serial
Out:   serial
Err:   serial
Net:   dm9000
Hit any key to stop autoboot:  0
SMDK2410 #

用了这个版本的U-Boot去nfs下载还是不行，一样有下面的问题：
U-Boot 2012.04.01 (Dec 18 2012 - 04:44:13)

CPUID: 32440001
FCLK:      400 MHz
HCLK:      100 MHz
PCLK:       50 MHz
DRAM:  64 MiB
WARNING: Caches not enabled
Flash: 0 KB
NAND:  256 MiB
In:    serial
Out:   serial
Err:   serial
Net:   dm9000
Hit any key to stop autoboot:  0
SMDK2410 # ping 10.0.40.199
ERROR: resetting DM9000 -> not responding
dm9000 i/o: 0x20000000, id: 0x90000a46
DM9000: running in 16 bit mode
MAC: 08:00:3e:26:0a:5b
could not establish link
Using dm9000 device
host 10.0.40.199 is alive
SMDK2410 # nfs 30000000 10.0.40.199:/work/nfs_root/fs_mini_mdev/uImage_nots
ERROR: resetting DM9000 -> not responding
dm9000 i/o: 0x20000000, id: 0x90000a46
DM9000: running in 16 bit mode
MAC: 08:00:3e:26:0a:5b
could not establish link
Using dm9000 device
File transfer via NFS from server 10.0.40.199; our IP address is 10.0.40.200
Filename '/work/nfs_root/fs_mini_mdev/uImage_nots'.
Load address: 0x30000000
Loading: T *** ERROR: Cannot mount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount
*** ERROR: Cannot umount

done

done

done

done

done

done

done

done

done

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done

done

done

done

done

done
SMDK2410 #

ERROR: Cannot mount

这问题可能来自两方面：
1．UBOOT
2．服务器

我们先确定服务器没问题，你在服务器上MOUNT 自己试试，比如执行这样的命令（这只是个例子，IP、目录需要自己修改）：
sudo mount  -t nfs  -o nolock,vers=2    10.0.40.199:/work/nfs_root/fs_mini_mdev   /mnt
如果成功，就表示服务器没问题。

对于UBOOT问题，换上我们的u-boot-1.1.6 试试