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EVMK2H Rev40 uboot tftp

MCSDK 3.x User Guide

Loading and Running Linux Kernel using tftp with NFS file system

>setenv serverip 192.168.1.10
>setenv tftp_root release
>setenv nfs_root export/release
>setenv boot net
>saveenv
>boot

我按照手册上面的设置进行tftp下载内核,nfs挂载文件系统,遇到如下问题:

设置好bootfile :    setenv  bootfile   uImage,  当boot后,总是出现错误:

K2HK EVM # boot
BOOTP broadcast 1
BOOTP broadcast 2
*** Unhandled DHCP Option in OFFER/ACK: 52
*** Unhandled DHCP Option in OFFER/ACK: 52
DHCP client bound to address 192.168.1.100
Using K2HK_EMAC device
TFTP from server 192.168.1.192; our IP address is 192.168.1.100
Filename '�'.
Load address: 0x87000000

这时再查看bootfile,  printenv bootfile:

bootfile=�