NFS启动根文件系统，遇到Root-NFS: Unable to get mountd port number from server, using default问题

1.

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)

问题分析：可能没开nfs服务

解决方法：/etc/init.d/nfs restart