CentOS6 开机启动卡在进度条，按ESC显示启动详细信息，如下错误：

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版本之后使用rpcbind服务（5系版本为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，rpcbind服务不启动的话就会报错

解决办法：重启进入单用户模式，把rpcbind服务设置为开机启动：chkconfig rpcbind on 即可。

本文转自 kuSorZ 51CTO博客，原文链接:http://blog.51cto.com/kusorz/1739513