Looking up port of RPC 100003/2 on 192.168.1.17
eth0: link up, 100Mbps, full-duplex, lpa 0x4DE1
Root-NFS: Unable to get nfsd port number from server, using default
Looking up port of RPC 100005/1 on 192.168.1.17
Root-NFS: Unable to get mountd port number from server, using default
Root-NFS: Server returned error -5 while mounting /nfsroot/rootfs
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 384 mtdblock0 (driver?)
1f01 2048 mtdblock1 (driver?)
1f02 259712 mtdblock2 (driver?)
1f03 262144 mtdblock3 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
解决方法：/etc/init.d/nfs restart