故障现象：
[root@nebula ~]# mount node01:/data /var/lib/one
mount: wrong fs type, bad option, bad superblock on node01:/data,
missing codepage or helper program, or other error
(for several filesystems (e.g. nfs, cifs) you might
need a /sbin/mount.<type> helper program)
In some cases useful info is found in syslog - try
dmesg | tail or so
解决办法：
[root@nebula ~]# yum -y install nfs-utils