系统上电后，终端打印信息如下：
Starting kernel ...
Uncompressing Linux........................................................................................................................... done, booting the kernel.
Linux version 2.6.32.9 (zhangying@zhangying-desktop) (gcc version 4.4.2 (UC4_1.0-beta_20100415) ) #2 Mon Jan 9 22:00:37 CST 2012
CPU: UniCore II 32-bit processor [4d180863] revision 8 (UniCore v2), cr=0000201f
Machine: SEP0611 board
SEP0611 clock driver initialized.(version 1.0)
Unicore :804MHz
DDR2 :402MHz
AHB :240MHz
APB :60MHz
Built 1 zonelists in Zone order, mobility grouping off. Total pages: 52832
Kernel command line: root=/dev/nfs rw nfsroot=192.168.0.3:/nfs ip=192.168.0.2:192.168.0.3:192.168.0.1:255.255.255.0:sep611:eth0:off console=ttyS0,115200 mem=208mb
PID hash table entries: 1024 (order: 0, 4096 bytes)
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Reserve 0x100000 Bytes memory at 0x40F00000 for PMU SLEEPMODE.
Reserve 0x80000 Bytes memory at 0x41000000 for SEP onchip GPS.
Failed...
Memory: 208MB = 208MB total
中间省略，没有出现问题。。。。。。。。。。。。。
dm9000 Ethernet Driver, V1.31
db->addr_res->start = 0xa1000000
eth0: dm9000b at cd856000,cd85a800 IRQ 7 MAC: 00:50:c2:1e:af:fb (eeprom)
i8042.c: i8042 controller self test timeout.
mice: PS/2 mouse device common for all mice
SEP0611 ADC Keypad Driver(Use AD7997)
SEP0611 I2C adapter driver v1.2
Adapter 1 at 0xB1007000, IRQ51
Adapter 2 at 0xB1008000, IRQ52
Adapter 3 at 0xB1009000, IRQ53
logger: created 64K log 'log_main'
logger: created 256K log 'log_events'
logger: created 64K log 'log_radio'
logger: created 64K log 'log_system'
TCP cubic registered
NET: Registered protocol family 17
NET: Registered protocol family 15
eth0: link up, 100Mbps, full-duplex, lpa 0xC1E1
IP-Config: Complete:
device=eth0, addr=192.168.0.2, mask=255.255.255.0, gw=192.168.0.1,
host=sep611, domain=, nis-domain=(none),
bootserver=192.168.0.3, rootserver=192.168.0.3, rootpath=
Looking up port of RPC 100003/2 on 192.168.0.3
------------[ cut here ]------------
WARNING: at net/sched/sch_generic.c:261 dev_watchdog+0x160/0x264()
NETDEV WATCHDOG: eth0 (dm9000): transmit queue 0 timed out
Modules linked in:
Backtrace:
---[ end trace 9b26cb38a0ecc4ae ]---
rpcbind: server 192.168.0.3 not responding, timed out
Root-NFS: Unable to get nfsd port number from server, using default
Looking up port of RPC 100005/1 on 192.168.0.3
rpcbind: server 192.168.0.3 not responding, timed out
Root-NFS: Unable to get mountd port number from server, using default
Root-NFS: Server returned error -5 while mounting /nfs
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 2048 mtdblock0 (driver?)
1f01 2048 mtdblock1 (driver?)
1f02 10240 mtdblock2 (driver?)
1f03 10240 mtdblock3 (driver?)
1f04 819200 mtdblock4 (driver?)
1f05 102400 mtdblock5 (driver?)
1f06 102400 mtdblock6 (driver?)
1f07 1048576 mtdblock7 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
一直就是挂不上nfs， nfs配置是没问题的 防火墙也关了, 换到别的主机一样这个问题................
请问是我内核的问题 还是板子的网卡出现了问题 谢谢!!!!
