NFS常见错误

错误一：Cannot register service: RPC

service nfs restart

Shutting down NFS mountd: [ OK ]

Shutting down NFS daemon: [ OK ]

Shutting down NFS quotas: [ OK ]

Shutting down NFS services: [ OK ]

Starting NFS services: [ OK ]

Starting NFS quotas: Cannot register service: RPC: Unable to receive; errno = Connection refused

rpc.rquotad: unable to register (RQUOTAPROG, RQUOTAVERS, udp).

[FAILED]

#解决方法：

service portmap start

#先启动portmap才行

错误二：Address already in use

tail -f /var/log/message

Apr :: bogon nfsd[]: nfssvc: Setting version failed: errno (Device or resource busy)

Apr :: bogon nfsd[]: nfssvc: unable to bind UPD socket: errno (Address already in use)

Apr :: bogon nfsd[]: nfssvc: Setting version failed: errno (Device or resource busy)

Apr :: bogon nfsd[]: nfssvc: unable to bind UPD socket: errno (Address already in use)

Apr :: bogon nfsd[]: nfssvc: Setting version failed: errno (Device or resource busy)

#解决方法：

ps aux | grep nfs

#然后用kill干掉这些进程

错误三：mount: …:/nfsdata failed, reason given by server: Permission denied

#解决方法：

a.把该客户端的ip加入服务端的/etc/exports

b.服务端的和客户端规则要统一，要么都使用主机名（注意每台机器的hosts文件），要么都使用IP

错误四：客户端挂载超时

tail -f /var/log/message

Apr :: localhost kernel: portmap: server localhost not responding, timed out

Apr :: localhost kernel: RPC: failed to contact portmap (errno -).

Apr :: localhost kernel: RPC: failed to contact portmap (errno -).

Apr :: localhost kernel: lockd_up: makesock failed, error=-

Apr :: localhost kernel: RPC: failed to contact portmap (errno -).

#解决方法：

service portmap restart

service nfs restart

错误五：Error: RPC MTAB does not exist.

service nfs start

Starting NFS services: [ OK ]

Starting NFS quotas: [ OK ]

Starting NFS daemon: [ OK ]

Starting NFS mountd: [ OK ]

Starting RPC idmapd: Error: RPC MTAB does not exist.

#解决方法：

#手动执行

mount -t rpc_pipefs sunrpc /var/lib/nfs/rpc_pipefs/

#需要时加入开机启动时，加入下面两行到/etc/fstab

rpc_pipefs /var/lib/nfs/rpc_pipefs rpc_pipefs defaults

nfsd /proc/fs/nfsd nfsd defaults