nfs文件系统挂载不成功

只看该作者 · 2013-1-6 15:38

最近学习linux。我通过nfs文件系统挂载不成功。
我是想通过PC机的linux系统关在到我的开发板。在pc机本身上是可以挂载成功。但是想在开发板上挂载到PC机上就不行了。使用的命令如下
[root@EmbedSky /etc]# mount -o nolock  -t nfs:/home/xxw /tmp
tmpfs: No value for mount option 'nolock'
mount: mounting tmpfs on /tmp failed: Invalid argument
是不是我的Linux中fstab文件的配置有问题
#device       mount-point    type options       dump fsck order
proc          /proc          proc defaults             0    0
tmpfs          /tmp          tmpfs defaults             0    0
sysfs          /sys          sysfs defaults             0    0
tmpfs          /dev          tmpfs defaults             0    0
var          /dev          tmpfs defaults             0    0
ramfs          /dev          ramfs defaults             0    0

1万 · 2013-1-6 17:28

从打印来看nolock参数不对，确认一下用法

只看该作者 · 2013-1-6 20:23

检查一下参数吧~

只看该作者 · 2013-1-7 09:07

语法问题: -t nfs后要加空格，别mount到/tmp目录。你的fstab没有关于nfs的入口项。
# mount -o nolock -t nfs $SEVER_IP:/home/xxw /mnt/nfs

只看该作者 · 2013-1-7 12:03

ymind 发表于 2013-1-7 09:07
语法问题: -t nfs后要加空格，别mount到/tmp目录。你的fstab没有关于nfs的入口项。
# mount -o nolock -t ...

[root@EmbedSky /]# ping 192.168.1.100
PING 192.168.1.100 (192.168.1.100): 56 data bytes
64 bytes from 192.168.1.100: seq=0 ttl=64 time=5.277 ms
64 bytes from 192.168.1.100: seq=1 ttl=64 time=0.949 ms
64 bytes from 192.168.1.100: seq=2 ttl=64 time=0.949 ms
64 bytes from 192.168.1.100: seq=3 ttl=64 time=0.956 ms
^C
--- 192.168.1.100 ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max = 0.949/2.032/5.277 ms
[root@EmbedSky /]# mount -o nolock -t nfs 192.168.1.100:/home/xxw /tmp/nfs
mount: RPC: Unable to receive; errno = Connection refused
[root@EmbedSky /]# mount 192.168.1.100:/home/xxw /tmp/nfs
mount: RPC: Unable to receive; errno = Connection refused
[root@EmbedSky /]# mount -o nolock -t nfs 192.168.1.100:/home/xxw /tmp/nfs

我在开发板端测试了主机的网络是联通的，然后按照你说的命令尝试了下，结果如上。
是不是我的开发板上缺少什么文件，导致nfs挂载不成功

只看该作者 · 2013-1-7 13:07

检查NFS server的防火墙设置（iptables -L), host access control文件（/etc/hosts.deny), 和NFS设置（/etc/exports).
都要允许你开发板的ip address使用NFS.

只看该作者 · 2013-1-7 14:07

ymind 发表于 2013-1-7 13:07
检查NFS server的防火墙设置（iptables -L), host access control文件（/etc/hosts.deny), 和NFS设置（/etc ...

那些我都设置过了。我在host上尝试过挂载，是可以在host把执行mount /home/xxw /mnt，并且结果显示是成功了的。然后我再host上测试ping 192.168.1.6（192.168.1.6目标板的ip）
[root@localhost root]# ping 192.168.1.6
PING 192.168.1.6 (192.168.1.6) 56(84) bytes of data.
From 192.168.1.100 icmp_seq=1 Destination Host Unreachable
From 192.168.1.100 icmp_seq=2 Destination Host Unreachable
From 192.168.1.100 icmp_seq=3 Destination Host Unreachable
From 192.168.1.100 icmp_seq=4 Destination Host Unreachable
From 192.168.1.100 icmp_seq=5 Destination Host Unreachable
From 192.168.1.100 icmp_seq=6 Destination Host Unreachable
From 192.168.1.100 icmp_seq=7 Destination Host Unreachable
From 192.168.1.100 icmp_seq=8 Destination Host Unreachable
From 192.168.1.100 icmp_seq=9 Destination Host Unreachable

--- 192.168.1.6 ping statistics ---
10 packets transmitted, 0 received, +9 errors, 100% packet loss, time 9026ms
, pipe 3
我觉的可能是目标板什么地方有问题。

只看该作者 · 2013-1-8 08:26

也就是说，主机(192.168.1.100)能ping通开发板(192.168.1.6)，但反之则不通，对吗？
1. 在开发板侧能使用telnet, ftp等登录主机吗？
2. 主机Linux是装在虚拟机之上的吗？
3. 主机与开发板之间是交换机，还是经过了老式HUB?
4. 在开发板侧运行命令ifconfig -a, 和cat /proc/interrupts，我看看结果。在ping之前，之后各运行一遍。

只看该作者 · 2013-1-9 14:03

ymind 发表于 2013-1-8 08:26
也就是说，主机(192.168.1.100)能ping通开发板(192.168.1.6)，但反之则不通，对吗？
1. 在开发板侧能使用te ...

非常感谢大侠》
我来说一下我这边的情况：我主机的linux是装在虚拟机上的，目标板是一个2410的开发板。现在主机很目标板的连接是一根串口线和一根网线。串口线通过minicom来操作目标板。
主机端现象：IP:192.168.1.100.我再虚拟机上和windows上都是配置的一致的。然后在主机端现在是可以把/home/xxw  挂载到/mnt的
下面是一些现象：
[root@localhost root]# ping 192.168.1.6
PING 192.168.1.6 (192.168.1.6) 56(84) bytes of data.
From 192.168.1.100 icmp_seq=1 Destination Host Unreachable
From 192.168.1.100 icmp_seq=2 Destination Host Unreachable
From 192.168.1.100 icmp_seq=3 Destination Host Unreachable
From 192.168.1.100 icmp_seq=4 Destination Host Unreachable
From 192.168.1.100 icmp_seq=5 Destination Host Unreachable
From 192.168.1.100 icmp_seq=6 Destination Host Unreachable
From 192.168.1.100 icmp_seq=7 Destination Host Unreachable
From 192.168.1.100 icmp_seq=8 Destination Host Unreachable
From 192.168.1.100 icmp_seq=9 Destination Host Unreachable

--- 192.168.1.6 ping statistics ---
10 packets transmitted, 0 received, +9 errors, 100% packet loss, time 9104ms
, pipe 3
[root@localhost root]# cat /proc/interrupts
         CPU0
  0:    859675       XT-PIC  timer
  1:       393       XT-PIC  keyboard
  2:       0       XT-PIC  cascade
  3:       345       XT-PIC  serial
  5:       25       XT-PIC  vmxnet ether
  8:       1       XT-PIC  rtc
  9:       0       XT-PIC  vmci
10:       32       XT-PIC  usb-uhci
11:    32937       XT-PIC  ioc0, ehci-hcd
12:    6246       XT-PIC  PS/2 Mouse
15:    66777       XT-PIC  ide1
NMI:       0
ERR:       0
[root@localhost root]# ping 192.168.1.100
PING 192.168.1.100 (192.168.1.100) 56(84) bytes of data.
64 bytes from 192.168.1.100: icmp_seq=1 ttl=64 time=0.205 ms
64 bytes from 192.168.1.100: icmp_seq=2 ttl=64 time=0.050 ms
64 bytes from 192.168.1.100: icmp_seq=3 ttl=64 time=0.024 ms
64 bytes from 192.168.1.100: icmp_seq=4 ttl=64 time=0.023 ms
64 bytes from 192.168.1.100: icmp_seq=5 ttl=64 time=0.028 ms

--- 192.168.1.100 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 3996ms
rtt min/avg/max/mdev = 0.023/0.066/0.205/0.070 ms
[root@localhost root]# ping 192.168.1.6
PING 192.168.1.6 (192.168.1.6) 56(84) bytes of data.
From 192.168.1.100 icmp_seq=1 Destination Host Unreachable
From 192.168.1.100 icmp_seq=2 Destination Host Unreachable
From 192.168.1.100 icmp_seq=3 Destination Host Unreachable
From 192.168.1.100 icmp_seq=4 Destination Host Unreachable
From 192.168.1.100 icmp_seq=5 Destination Host Unreachable
From 192.168.1.100 icmp_seq=6 Destination Host Unreachable

--- 192.168.1.6 ping statistics ---
8 packets transmitted, 0 received, +6 errors, 100% packet loss, time 7076ms
, pipe 3
目标板上的一些现象：
[root@EmbedSky /]# ping 192.168.1.100
PING 192.168.1.100 (192.168.1.100): 56 data bytes
64 bytes from 192.168.1.100: seq=0 ttl=64 time=5.923 ms
64 bytes from 192.168.1.100: seq=1 ttl=64 time=0.952 ms
64 bytes from 192.168.1.100: seq=2 ttl=64 time=0.952 ms
64 bytes from 192.168.1.100: seq=3 ttl=64 time=0.950 ms
64 bytes from 192.168.1.100: seq=4 ttl=64 time=0.817 ms
^C
--- 192.168.1.100 ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 0.817/1.918/5.923 ms
[1]+  Done(127)                AT S7=45 S0=0 L1 V1 X4
[root@EmbedSky /]# ifconfig
eth0    Link encap:Ethernet  HWaddr 10:23:45:67:89:AB
      inet addr:192.168.1.6  Bcast:192.168.1.255  Mask:255.255.255.0
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:733 errors:0 dropped:0 overruns:0 frame:0
      TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:102754 (100.3 KiB)  TX bytes:532 (532.0 B)
      Interrupt:51 Base address:0x4000

lo       Link encap:Local Loopback
      inet addr:127.0.0.1  Mask:255.0.0.0
      UP LOOPBACK RUNNING  MTU:16436  Metric:1
      RX packets:0 errors:0 dropped:0 overruns:0 frame:0
      TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:0
      RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

[root@EmbedSky /]# cat /proc/interrupts
         CPU0
30: 1728917       s3c  S3C2410 Timer Tick
32:       0       s3c  s3c2410-lcd
33:       0       s3c  s3c-mci
37:       21       s3c  s3c-mci
41:       1       s3c  s3c2410_udc
42:       0       s3c  ohci_hcd:usb1
43:       0       s3c  s3c2440-i2c
51:       782    s3c-ext  eth0
60:       0    s3c-ext  s3c-mci
70:       112 s3c-uart0  s3c2440-uart
71:       241 s3c-uart0  s3c2440-uart
79:       0    s3c-adc  TQ2440 TouchScreen
80:       0    s3c-adc  adc, TQ2440 TouchScreen
83:       0          -  s3c2410-wdt
Err:       0
[root@EmbedSky /]# ping 192.168.1.100
PING 192.168.1.100 (192.168.1.100): 56 data bytes
64 bytes from 192.168.1.100: seq=0 ttl=64 time=7.068 ms
64 bytes from 192.168.1.100: seq=1 ttl=64 time=0.949 ms
64 bytes from 192.168.1.100: seq=2 ttl=64 time=0.808 ms
64 bytes from 192.168.1.100: seq=3 ttl=64 time=0.954 ms
64 bytes from 192.168.1.100: seq=4 ttl=64 time=0.955 ms
64 bytes from 192.168.1.100: seq=5 ttl=64 time=0.952 ms
64 bytes from 192.168.1.100: seq=6 ttl=64 time=0.950 ms
^C
--- 192.168.1.100 ping statistics ---
7 packets transmitted, 7 packets received, 0% packet loss
round-trip min/avg/max = 0.808/1.805/7.068 ms
忘大神能解答一下