制作uImage
添加变量
setenv tftp 0x30008000 uImage;bootm
save
设置TFTP
linux上 tftp 建立
对网络的配置文件进行编辑
[root@centos /etc/sysconfig/networking/devices]$gedit ifcfg-eth0 &
# Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE]
DEVICE=eth0
BOOTPROTO=static //这个应该是“static”，而不是“dhcp”或“none”；
HWADDR=00:0C:29:E7:A4:D5
ONBOOT=yes
DHCP_HOSTNAME=centos.ocaldomain
IPADDR=192.168.1.102
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
TYPE=Ethernet
USERCTL=no
IPV6INIT=no
PEERDNS=yes
然后重新激活下网卡就可以了.
#service iptables stop
#service iptables status
#service network restart
Tfpt服务安装
1：挂载光盘
2：由于tftp跟xinetd有关，因此首先安装xinetd rpm.
[root@centos /media/CentOS_5.5_Final/CentOS]$ls |grep xinet*
xinetd-2.3.14-10.el5.i386.rpm
之后再安装 tftp rpm
[root@centos/media/CentOS_5.5_Final/CentOS]$rpm -ivh tftp-server-0.49-2.el5.centos.i386.rpm
3：修改配置文件 /etc/xinetd.d/tftp
[root@centos /etc/xinetd.d]$vi tftp
# default: off
# description: The tftp server serves files using the trivial file transfer
# protocol. The tftp protocol is often used to boot diskless
# workstations, download configuration files to network-aware printers,
# and to start the installation process for some operating systems.
service tftp
{
socket_type = dgram
protocol = udp
wait = yes
user = root
server = /usr/sbin/in.tftpd
server_args = -s /tftpboot //为内核uImage存放的位置与shell zImage_to_uImage.sh中最终生成uImage的位置相同
disable = yes -àno
per_source = 11
cps = 100 2
flags = IPv4
}
4：重新启动xinetd服务
[root@centos /media/CentOS_5.5_Final/CentOS]$ /etc/init.d/xinetd restart
之后uboot通过tftp下载内核uImage可以顺利进行了。
u-boot@MINI2440]# tftp 0x30008000 uImage
dm9000 i/o: 0x20000300, id: 0x90000a46
DM9000: running in 16 bit mode
MAC: 12:34:56:78:90:ab
operating at 100M full duplex mode
Using dm9000 device
TFTP from server 192.168.1.102; our IP address is 192.168.1.103
Filename 'uImage'.
Load address: 0x30008000
Loading: T #################################################################
#################################################################
#########################
done
Bytes transferred = 2268652 (229dec hex)
启动