nfs无法挂载友善提供的andriod4.0.3文件系统，打印信息如下所示：
IP-Config: Complete:
[ 3.308986] device=eth0, addr=192.168.1.100, mask=255.255.255.0, gw=192.
168.1.1,
[ 3.309057] host=zyx, domain=, nis-domain=(none),
[ 3.309101] bootserver=192.168.1.112, rootserver=192.168.1.112, rootpath
=
[ 3.669704] VFS: Mounted root (nfs filesystem) on device 0:12.
[ 3.669810] Freeing init memory: 188K
[ 3.707812] init (1): /proc/1/oom_adj is deprecated, please use /proc/1/oom_s
core_adj instead.
[ 3.836713] init: cannot open '/initlogo.rle'
[ 5.152307] init: cannot find '/system/bin/zte_mf210_dial', disabling 'pppd_g
prs'
[ 5.263179] android_usb: already disabled
[ 5.263505] adb_bind_config
[ 5.264114] android_work: did not send uevent (0 0 (null))
[ 5.614769] adb_open
[ 6.442579] PVR_K:(Warning): SysFinalise: Version string: SGX540 S5PC110 [543
, drivers/gpu/pvr/s5pc110/sysconfig.c]
/system/bin/sh: can't access tty; job control turned off
/ # [ 16.117387] nfs: server 192.168.1.112 not responding, still trying
