[SOLVED] NFS share mounts but can't view/browse files

AudioMechanic · 01-11-2014, 03:06 PM

Server: CentOS 6 64bit
Client: Ubuntu 13.04

I have a strange problem after disabling NetworkManager on the client PC: the NFS share on my client mounts fine, but the directories are emtpy. If I mount the shares manually, everything appears and I can browse/view files.

None of the NFS server configurations have changed. None of the autofs, NFS, or fstab configurations on the client have changed.

What HAS changed on the client is NetworkManager is no longer handling the network. The last Ubuntu update broke NetworkManager so I disabled it and configured the network interface the old fashion way. The network on the client is static and works fine, except this NFS issue. The client's IP address is the same as before when NM handled the network.

I have a 2nd client running OpenSuSE. I can view the shares and see the files just fine without manually mounting. Only the Ubuntu client is having this issue.

Ubuntu client:

Code:

Linux htpc 3.2.0-58-generic #88-Ubuntu SMP Tue Dec 3 17:40:43 UTC 2013 i686 i686 i386 GNU/Linux

Ubuntu client Fstab (non-NFS entries removed):

Code:

10.10.69.1:/NAS         /Media    nfs     rw,exec,nosuid,dev,sync,users,noatime,hard,intr,auto,rsize=32768,wsize=32768,timeo=10 0 0

Ubuntu client auto.master:

Code:

#
+auto.master
/Media /etc/auto.NAS --timeout 10

Ubuntu client auto.NAS:

Code:

NAS     -fstype=nfs,rw,soft,intr,nosuid,nodev,tcp,retry=10,rsize=32768,wsize=32768 10.10.69.1:/NAS
shane@htpc:/etc$

I've checked /etc/exports on the server and the Ubuntu client's address is there. I've checked /etc/hosts.allow and the Ubuntu client's address is listed for portmap, lockd, rquotad, mountd, and statd.

After a fresh reboot, there is an entry in mtab for the NFS share showing it is mounted. If I manually mount using:

Code:

sudo mount 10.10.69.1:/NAS /Media

then I can view the files and mtab has a SECOND entry for the same mount. So confused.

Halp.

lleb · 01-11-2014, 05:27 PM

are you trying to use both autofs and fstab to mount the NFS share? if so that is wrong. use one or the other, but not both at the same time... you will confuse the system and try to mount inside of a mount. its doable, but things can and will go haywire.

what does exports -e 10.10.69.1 say from the client?

also after a fresh boot what does df -Tha state?

AudioMechanic · 01-11-2014, 05:59 PM

Quote:

Originally Posted by lleb

are you trying to use both autofs and fstab to mount the NFS share? if so that is wrong. use one or the other, but not both at the same time... you will confuse the system and try to mount inside of a mount. its doable, but things can and will go haywire.

Good point. I've changed the auto flag to noauto.

Quote:

Originally Posted by lleb

what does exports -e 10.10.69.1 say from the client?

No /etc/exports file on client (unless you're referring to something else).

Quote:

Originally Posted by lleb

also after a fresh boot what does df -Tha state?

Code:

shane@htpc:~$ sudo df -Tha
[sudo] password for shane: 
Filesystem     Type         Size  Used Avail Use% Mounted on
/dev/sda1      ext4         145G   52G   86G  38% /
proc           proc            0     0     0    - /proc
sysfs          sysfs           0     0     0    - /sys
none           fusectl         0     0     0    - /sys/fs/fuse/connections
none           debugfs         0     0     0    - /sys/kernel/debug
none           securityfs      0     0     0    - /sys/kernel/security
udev           devtmpfs     998M  4.0K  998M   1% /dev
devpts         devpts          0     0     0    - /dev/pts
tmpfs          tmpfs        402M  936K  401M   1% /run
none           tmpfs        5.0M     0  5.0M   0% /run/lock
none           tmpfs       1005M     0 1005M   0% /run/shm
binfmt_misc    binfmt_misc     0     0     0    - /proc/sys/fs/binfmt_misc
rpc_pipefs     rpc_pipefs      0     0     0    - /run/rpc_pipefs
shane@htpc:~$

Here it is after manually mounting:

Code:

shane@htpc:/$ sudo mount 10.10.69.1:/NAS /Media
shane@htpc:/$ sudo df -Tha
Filesystem      Type         Size  Used Avail Use% Mounted on
/dev/sda1       ext4         145G   52G   86G  38% /
proc            proc            0     0     0    - /proc
sysfs           sysfs           0     0     0    - /sys
none            fusectl         0     0     0    - /sys/fs/fuse/connections
none            debugfs         0     0     0    - /sys/kernel/debug
none            securityfs      0     0     0    - /sys/kernel/security
udev            devtmpfs     998M  4.0K  998M   1% /dev
devpts          devpts          0     0     0    - /dev/pts
tmpfs           tmpfs        402M  936K  401M   1% /run
none            tmpfs        5.0M     0  5.0M   0% /run/lock
none            tmpfs       1005M     0 1005M   0% /run/shm
binfmt_misc     binfmt_misc     0     0     0    - /proc/sys/fs/binfmt_misc
rpc_pipefs      rpc_pipefs      0     0     0    - /run/rpc_pipefs
10.10.69.1:/NAS nfs          5.4T  1.7T  3.5T  32% /Media
shane@htpc:/$

Thanks man for helping out.

AudioMechanic · 01-11-2014, 06:11 PM

FIXED

I went to /etc/default/autofs and set this option:

Code:

BROWSE_MODE="yes"

It was set to no. But for some reason it worked before. No idea. It works now and that's all I wanted.

lleb · 01-12-2014, 11:51 AM

good glad you found it. if you are using autofs, remove the fstab entry.