问题描述：

mount: wrong fs type, bad option, bad superblock on x.x.x.x:/xxxx_domain/update,

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

　　提示很明确，缺少mount.nfs  //此命令源自nfs-utils

问题解决：

　　yum install -y nfs-utils

　　service rpcbind start && chkconfig rpcbind on

问题测试：

　　mount -t nfs  10.10.10.1:/update  /mnt