[root@bjs0- ~]# /etc/init.d/portreserve start
Starting portreserve: [ OK ]
[root@bjs0- ~]# /etc/init.d/nfs start
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]
Starting NFS mountd: [FAILED]
Starting NFS daemon: rpc.nfsd: writing fd to kernel failed: errno 111 (Connection refused)
rpc.nfsd: unable to set any sockets for nfsd
[FAILED]

RH系操作系统在6.0版本之后没有portmap服务控制rpc的启动，由于NFS和nfslock的启动需要向rpc进行注册，rpc不启动的话就会报错。

解决方法：启动rpcbind&rpcidmap rpcbind是6.0版本后默认的RPC服务，所以要先于nfs启动。如果不启动rpcidmap则会造成用户权限的映射错误，用户的权限看起来是一串数字。


[root@bjs0- ~]# /etc/init.d/rpcbind start
Starting rpcbind: [ OK ]
[root@bjs0- ~]# /etc/init.d/rpcidmapd start
Starting RPC idmapd: [ OK ]
[root@bjs0- ~]# /etc/init.d/nfs start
Starting NFS services: [ OK ]
Starting NFS quotas: [ OK ]
Starting NFS mountd: [ OK ]
Starting NFS daemon: [ OK ]