版主，求助，开发板启动不了了。。。。。

我按照手册设置nfs
虚拟机上已经测试nfs已经开启了。
于是我便从norflash启动，0选项设置nfs参数，设置完之后，从nandflash启动linux，但是怎么也启动不了，如下无限次循环。
我重新烧写了内核镜像，文件系统也是同样启动不了
急啊:'(
启动信息如下：
##### EmbedSky BIOS for SKY2440/TQ2440 #####
Press Space key to Download Mode !
Booting Linux ...
Copy linux kernel from 0x00200000 to 0x30008000, size = 0x00200000 ... Copy Kernel to SDRAM done,NOW, Booting Linux......
Uncompressing Linux.......................................................................................................................... done, booting the kernel.
Linux version 2.6.30.4-EmbedSky (root@EmbedSky) (gcc version 4.3.3 (Sourcery G++ Lite 2009q1-203) ) #13 Fri Oct 30 21:45:00 CST 2009
CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177
CPU: VIVT data cache, VIVT instruction cache
Machine: TQ2440
ATAG_INITRD is deprecated; please update your bootloader.
Memory policy: ECC disabled, Data cache writeback
CPU S3C2440A (id 0x32440001)
S3C24XX Clocks, (c) 2004 Simtec Electronics
S3C244X: core 400.000 MHz, memory 100.000 MHz, peripheral 50.000 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: console=ttySAC0 root=/dev/nfs nfsroot=: ip=::::SKY2440.embedsky.net:eth0:off
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
console [ttySAC0] enabled
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 64MB = 64MB total
Memory: 60876KB available (3444K code, 374K data, 180K init, 0K highmem)
SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Calibrating delay loop... 199.47 BogoMIPS (lpj=498688)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
net_namespace: 296 bytes
NET: Registered protocol family 16
S3C2440: Initialising architecture
S3C2440: IRQ Support
S3C24XX DMA Driver, (c) 2003-2004,2006 Simtec Electronics
DMA channel 0 at c4808000, irq 33
DMA channel 1 at c4808040, irq 34
DMA channel 2 at c4808080, irq 35
DMA channel 3 at c48080c0, irq 36
S3C244X: Clock Support, DVS off
bio: create slab <bio-0> at 0
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
s3c2440-i2c s3c2440-i2c: slave address 0x10
s3c2440-i2c s3c2440-i2c: bus frequency set to 97 KHz
s3c2440-i2c s3c2440-i2c: i2c-0: S3C I2C adapter
cfg80211: Calling CRDA to update world regulatory domain
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 2048 (order: 2, 16384 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
TCP reno registered
NET: Registered protocol family 1
yaffs Oct 30 2009 21:01:24 Installing.
msgmni has been set to 119
alg: No test for stdrng (krng)
io scheduler noop registered (default)
Console: switching to colour frame buffer device 40x15
fb0: s3c2410fb frame buffer device
backlight initialized
GPIO-Control initialized
PWM-Test initialized
adc initialized
s3c2440-uart.0: tq2440_serial0 at MMIO 0x50000000 (irq = 70) is a S3C2440
s3c2440-uart.1: tq2440_serial1 at MMIO 0x50004000 (irq = 73) is a S3C2440
s3c2440-uart.2: tq2440_serial2 at MMIO 0x50008000 (irq = 76) is a S3C2440
loop: module loaded
Driver 'sd' needs updating - please use bus_type methods
dm9000 Ethernet Driver, V1.31
Now use the default MAC address: 10:23:45:67:89:ab
eth0 (dm9000): not using net_device_ops yet
eth0: dm9000e at c4814000,c4818004 IRQ 51 MAC: 10:23:45:67:89:ab (EmbedSky)
S3C24XX NAND Driver, (c) 2004 Simtec Electronics
s3c2440-nand s3c2440-nand: Tacls=2, 20ns Twrph0=3 30ns, Twrph1=2 20ns
NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-bit)
Scanning device for bad blocks
Bad eraseblock 272 at 0x000002200000
Bad eraseblock 809 at 0x000006520000
Bad eraseblock 927 at 0x0000073e0000
Bad eraseblock 1191 at 0x0000094e0000
Bad eraseblock 1284 at 0x00000a080000
Bad eraseblock 1419 at 0x00000b160000
Creating 3 MTD partitions on "NAND 256MiB 3,3V 8-bit":
0x000000000000-0x000000040000 : "EmbedSky_Board_uboot"
0x000000200000-0x000000400000 : "EmbedSky_Board_kernel"
0x000000400000-0x00000ff80000 : "EmbedSky_Board_yaffs2"
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
s3c2410-ohci s3c2410-ohci: S3C24XX OHCI
s3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1
s3c2410-ohci s3c2410-ohci: irq 42, io mem 0x49000000
usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: S3C24XX OHCI
usb usb1: Manufacturer: Linux 2.6.30.4-EmbedSky ohci_hcd
usb usb1: SerialNumber: s3c24xx
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usbcore: registered new interface driver usbserial
usbserial: USB Serial Driver core
USB Serial support registered for pl2303
usbcore: registered new interface driver pl2303
pl2303: Prolific PL2303 USB to serial adaptor driver
s3c2410_udc: debugfs dir creation failed -19
s3c2440-usbgadget s3c2440-usbgadget: S3C2440: increasing FIFO to 128 bytes
mice: PS/2 mouse device common for all mice
TQ2440 TouchScreen successfully loaded
input: TQ2440 TouchScreen as /devices/virtual/input/input0
S3C24XX RTC, (c) 2004,2006 Simtec Electronics
s3c2410-rtc s3c2410-rtc: rtc disabled, re-enabling
s3c2410-rtc s3c2410-rtc: rtc core: registered s3c as rtc0
i2c /dev entries driver
Linux video capture interface: v2.00
zc0301: V4L2 driver for ZC0301[P] Image Processor and Control Chip v1:1.10
usbcore: registered new interface driver zc0301
gspca: main v2.5.0 registered
usbcore: registered new interface driver zc3xx
zc3xx: registered
usbcore: registered new interface driver uvcvideo
USB Video Class driver (v0.1.0)
S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics
s3c2410-wdt s3c2410-wdt: starting watchdog timer
s3c2410-wdt s3c2410-wdt: watchdog active, reset abled, irq enabled
mapped channel 0 to 0
s3c2440-sdi s3c2440-sdi: powered down.
s3c2440-sdi s3c2440-sdi: initialisation done.
s3c2440-sdi s3c2440-sdi: powered down.
usbcore: registered new interface driver usbhid
usbhid: v2.6:USB HID core driver
Advanced Linux Sound Architecture Driver Version 1.0.18a.
No device for DAI UDA134X
No device for DAI s3c24xx-i2s
S3C24XX_UDA134X SoC Audio driver
UDA134X SoC Audio Codec
asoc: UDA134X <-> s3c24xx-i2s mapping ok
ALSA device list:
  #0: S3C24XX_UDA134X (UDA134X)
TCP cubic registered
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
lib80211: common routines for IEEE802.11 drivers
s3c2410-rtc s3c2410-rtc: setting system clock to 2009-02-01 01:52:19 UTC (1233453139)
Root-NFS: No NFS server available, giving up.
VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device "nfs" or unknown-block(2,0)
Please append a correct "root=" boot option; here are the available partitions:
1f00             256 mtdblock0 (driver?)
1f01            2048 mtdblock1 (driver?)
1f02          257536 mtdblock2 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
Backtrace:
[<c0039fd4>] (dump_backtrace+0x0/0x10c) from [<c02b17f8>] (dump_stack+0x18/0x1c)
r7:c380a0cb r6:c03bdf40 r5:c380a000 r4:c381df40
[<c02b17e0>] (dump_stack+0x0/0x1c) from [<c02b1848>] (panic+0x4c/0x124)
[<c02b17fc>] (panic+0x0/0x124) from [<c0008e30>] (mount_block_root+0x178/0x234)
r3:00000000 r2:c3831dac r1:c381df40 r0:c033f578
[<c0008cb8>] (mount_block_root+0x0/0x234) from [<c0008f9c>] (mount_root+0xb0/0xf4)
[<c0008eec>] (mount_root+0x0/0xf4) from [<c00090d8>] (prepare_namespace+0xf8/0x18c)
r7:c03bd924 r6:c001e83c r5:c001e83c r4:c001e84c
[<c0008fe0>] (prepare_namespace+0x0/0x18c) from [<c0008478>] (kernel_init+0xc8/0xf4)
r7:00000000 r6:c001d9d4 r5:c001d670 r4:c001d9d4
[<c00083b0>] (kernel_init+0x0/0xf4) from [<c004af30>] (do_exit+0x0/0x620)
r7:00000000 r6:00000000 r5:00000000 r4:00000000

NFS网络文件系统　没有挂载成功，请参考移植手册最后一章。

1# zhoujiaxg

Root-NFS: No NFS server available, giving up.
给你几个参考：
1.  你是怎么测试你的nfs server 开启并可用了？
2.  设置好nfs server 后，在/etc/export 中设置一下你的nfs root 目录
3.  通过 板子ping 一下你的PC，要能ping 通
4. 你PC的防火墙关闭

3# embedsky_lxt
3# embedsky_lxt
防火墙关了

/ect/exports文件也改了

/ect/init.d/nfs start开启nfs命令无法使用
[root@EmbedSky ~]# /ect/init.d/nfs start
bash: /ect/init.d/nfs: 没有那个文件或目录
[root@EmbedSky ~]# service nfs start
启动 NFS 服务：                                            [确定]
关掉 NFS 配额：                                            [确定]
启动 NFS 守护进程：                                        [确定]
启动 NFS mountd：                                          [确定]
上面是关掉NFS配额，这个跟手册上面不一样。
然后
[root@EmbedSky ~]# mount -t nfs 180.85.152.107:/opt/EmbedSky/root_nfs /opt/EmbedSky/root
能够看到root目录跟root_nfs目录下内容一样。
到这里就算所测试了PC端开启了NFS吧。
然后我就从norflash启动，设置了IP那些东西，启动linnux就出错了，不知道我哪个步骤错了。

4# zhoujiaxg


内核是自己编译的么？
我怎么没有看到你的网卡连接的信息

5# embedsky_lxt
不是自己编译的，都是用的光盘里带的。
教程里面怎么没讲虚拟机怎么设置？
那个好像要设置吧！除了关防火墙，设置桥接，还有其他的么？最好贴图看看

我好像是遇到了一样的问题：
解决方法是：你按照移植文档上 把网卡驱动移植 那章 移植了，应该就能解决！
希望你试试！