s3c2416 nfs根文件系统

tq2416的板子设置bootargs=noinitrd init=/linuxrc console=ttySAC0 root=/dev/nfs nfsroot=192.168.1.20:/opt/root_nfs/ ip=192.168.1.6:192.168.1.20:192.168.1.6:255.255.255.0:www.embedsky.com:eth0:off
但是启动却不成功 是按照教程一步一步来的   求解决

以下是出错信息：
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
IP-Config: Complete:
     device=eth0, addr=192.168.1.6, mask=255.255.255.0, gw=192.168.1.6,
     host=www, domain=, nis-domain=embedsky.com,
     bootserver=192.168.1.20, rootserver=192.168.1.20, rootpath=
dm9000 dm9000: eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1
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            1024 mtdblock0  (driver?)
1f01            2048 mtdblock1  (driver?)
1f02            4096 mtdblock2  (driver?)
1f03          254976 mtdblock3  (driver?)
b300         3858432 mmcblk0  driver: mmcblk
  b301         3852516 mmcblk0p1 00000000-0000-0000-0000-000000000mmcblk0p1
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
Backtrace:
[<c001703c>] (dump_backtrace+0x0/0x114) from [<c052a494>] (dump_stack+0x18/0x1c)
r7:00008000 r6:c38b7000 r5:c07360fc r4:c0785640
[<c052a47c>] (dump_stack+0x0/0x1c) from [<c052a4f8>] (panic+0x60/0x198)
[<c052a498>] (panic+0x0/0x198) from [<c0718dd0>] (mount_block_root+0x1e0/0x220)
r3:00000000 r2:20000013 r1:c3819f58 r0:c067b294
[<c0718bf0>] (mount_block_root+0x0/0x220) from [<c0718ebc>] (mount_root+0xac/0xd0)
r8:00000000 r7:00000013 r6:c002c4c4 r5:c07360fc r4:00200000
[<c0718e10>] (mount_root+0x0/0xd0) from [<c0719044>] (prepare_namespace+0x164/0x1bc)
r4:c0783de0
[<c0718ee0>] (prepare_namespace+0x0/0x1bc) from [<c0718310>] (kernel_init+0x104/0x13c)
r5:c071820c r4:c0783d80
[<c071820c>] (kernel_init+0x0/0x13c) from [<c002c4c4>] (do_exit+0x0/0x668)
r5:c071820c r4:00000000
eth0: no IPv6 routers present

/etc/rcS中的net_set有咩有注释掉。

wbz073 发表于 2014-5-5 16:18
/etc/rcS中的net_set有咩有注释掉。

自己做的问价系统  没有对网络进行重新配置的；不过还是谢谢你了