U-BOOT实现TFTP服务下载内核和利用NFS服务挂载NFS文件系统

问题出来啦，求救！

nfs: server 192.168.1.188 not responding, still trying

这是我的启动参数：

bootcmd=tftp 0x30000000 uImage.img ; bootm 0x30000000
bootargs=noinitrd root=/dev/nfs rw nfsroot=192.168.1.188:/opt/EmbedSky/root_qt_4.5_2.6.30.4 ip=192.168.1.105:192.168.1.188:192.168.1.1:255.255.255.0:arm2440:eth0:off console=ttySAC0,115200

网上说开发板(客户端)设置协议，貌似不行啊！

改成

bootargs=noinitrd root=/dev/nfs rw nfsroot=192.168.1.188:/opt/EmbedSky/root_qt_4.5_2.6.30.4,tcp ip=192.168.1.105:192.168.1.188:192.168.1.1:255.255.255.0:arm2440:eth0:off console=ttySAC0,115200

也不行

改成

bootargs=noinitrd root=/dev/nfs rw nfsroot=192.168.1.188:/opt/EmbedSky/root_qt_4.5_2.6.30.4,tcp,rsize=8192,wsize=8192 ip=192.168.1.105:192.168.1.188:192.168.1.1:255.255.255.0:arm2440:eth0:off console=ttySAC0,115200

还是不行！！

我当时就火了！

U-Boot 1.3.4 (Nov 12 2012 - 18:56:02)

DRAM:  64 MB

Flash:  2 MB

NAND:  256 MiB

In:    serial

Out:   serial

Err:   serial

dm9000 i/o: 0x20000300, id: 0x90000a46

DM9000: running in 16 bit mode

MAC: 08:00:3e:26:0a:5b

operating at unknown: 0 mode

Hit any key to stop autoboot:  0

dm9000 i/o: 0x20000300, id: 0x90000a46

DM9000: running in 16 bit mode

MAC: 08:00:3e:26:0a:5b

operating at unknown: 0 mode

TFTP from server 192.168.1.188; our IP address is 192.168.1.105

Filename 'uImage.img'.

Load address: 0x30000000

Loading: T #################################################################

         #################################################################

         ############################

done

Bytes transferred = 2314784 (235220 hex)

## Booting kernel from Legacy Image at 30000000 ...

   Image Name:   linux-2.6.30.4

   Created:      2012-11-12  10:50:22 UTC

   Image Type:   ARM Linux Kernel Image (uncompressed)

   Data Size:    2314720 Bytes =  2.2 MB

   Load Address: 30008000

   Entry Point:  30008000

   Verifying Checksum ... OK

   Loading Kernel Image ... OK

OK

Starting kernel ...

Uncompressing Linux......................................................................................................................................................... done, booting the kernel.

Linux version 2.6.30.4-EmbedSky (root@EmbedSky) (gcc version 4.3.3 (Sourcery G++ Lite 2009q1-176) ) #8 Mon May 31 10:57:52 CST 2010

CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=00007177

CPU: VIVT data cache, VIVT instruction cache

Machine: TQ2440

Memory policy: ECC disabled, Data cache writeback

CPU S3C2440A (id 0x32440001)

S3C24XX Clocks, (c) 2004 Simtec Electronics

S3C244X: core 405.000 MHz, memory 101.250 MHz, peripheral 50.625 MHz

CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on

Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256

Kernel command line: noinitrd root=/dev/nfs rw nfsroot=192.168.1.188:/opt/EmbedSky/root_qt_4.5_2.6.30.4 ip=192.168.1.105:192.168.1.188:192.168.1.1:255.255.255.0:arm2440:eth0:off console=ttySAC0,115200

......

NR_IRQS:85

irq: clearing pending ext status 00080000

irq: clearing subpending status 00000002

PID hash table entries: 256 (order: 8, 1024 bytes)

Console: colour dummy device 80x30

......

eth0: link down

IP-Config: Complete:

     device=eth0, addr=192.168.1.105, mask=255.255.255.0, gw=192.168.1.1,

     host=arm2440, domain=, nis-domain=(none),

     bootserver=192.168.1.188, rootserver=192.168.1.188, rootpath=

Looking up port of RPC 100003/2 on 192.168.1.188

eth0: link up, 100Mbps, full-duplex, lpa 0x4DE1

Looking up port of RPC 100005/1 on 192.168.1.188

VFS: Mounted root (nfs filesystem) on device 0:11.

Freeing init memory: 240K

Start Qt-4.5

usbcore: registered new interface driver rt73usb

usbcore: registered new interface driver zd1211rw

initializing s3c2440 camera interface......

s3c2440 camif init done

Loading OV9650 driver.........

OV9650 address 0x60, manufacture ID 0xFFFF, expect 0x7FA2

OV9650 address 0x60, manufacture ID 0xFFFF, expect 0x7FA2

No OV9650 found!!!

Try to bring eth0 interface up ...

nfs: server 192.168.1.188 not responding, still trying

你把你文件系统里边的/etc/init.d/rcS中的net_set屏蔽或者删除掉就可以了

呵呵  谢谢啊  问题解决了
还真的是rcS的问题，需要深入研究原因，能告知原因吗？

#TL-WN321G+
insmod /lib/rt2x00lib.ko
insmod /lib/rt2x00usb.ko
insmod /lib/rt73usb.ko
#TL-WN322G+
insmod /lib/zd1211rw.ko

insmod /lib/ov9650.ko

#ifconfig lo 127.0.0.1
#net_set &
/etc/rc.d/init.d/leds start
/etc/rc.d/init.d/netd start
/etc/rc.d/init.d/httpd start