nfs错误:mount: wrong fs type, bad option, bad superblock

root@leon-VirtualBox:/home/leon# mount -t nfs 127.0.0.1:/home/leon/nfs /mnt

mount: wrong fs type, bad option, bad superblock on 127.0.0.1:/home/leon/nfs,

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

解决方法：

apt-get install nfs-common