Hi,

I would like to know how can we mount a directory using nfs v4 ?

When I use the below command, I am not sure what nfs version am using to mount the directory.

mount -t <server_name>:<shared_directory> <shared_directory>.

eg:
mount -t 10.50.0.8:/home/arun/mount/share_dir /home/arun/mount/share_dir

If the above command uses anyother nfs version, then can anyone tell me the command to mount a directory using nfs4. OS is RHEL5

Thanks in advance.

Hi,

Is this what you are looking for?

mount -t nfs4 <server_name>:<shared_directory> <shared_directory>

Hi,

I tried ur command. Unfortunately, it failed with the below error message:

mount.nfs4: Operation not permitted

Do you have any other suggestions ?

Thanks.

It is not as simple as specifying the type in an option to the mount command. NFSv4 only uses TCP and also uses a pseudo-filesystem. Configuration is radically different than previous versions of NFS.

First check to see if you are NFSv4 enabled. Using rpcinfo, you should see a line like the following. If you do not, you are not running NFSv4. You also need to ensure that port is open in your firewall for TCP.

rpcinfo -p
....
XXXXXXX    4   tcp   2049  nfs
....

/NFS4                    XXX.XXX.XXX.XXX
/NFS4/shared_directory   XXX.XXX.XXX.XXX

Hi Murphy, Thanks for the help.

The server is NFSv4 enabled and the firewall is disabled. However, I could not get what you meant by this (am relatively newbie)

>>>>>
You need to ensure the ID to name mapping daemon (idmapd) is running on the server and is configured correctly (idmapd..conf) You also need to do this
>>>>>

Googling some NFSv4 How to pages, I did the below (and it did not throw me any error). Not sure what I did was correct.

On NFS Serverexample directories have been quoted below)

1. Edited /etc/exports by adding "/home/aruns/test 10.50.0.52 (rw,fsid=0,sync)"
2. Did "exportfs -r"

1. mount -t nfs4 10.50.0.52:/ /home/aruns/test

Read the following: NFSv4 setup for Fedora/Redhat/Centos

Thanks a lot Murphy.