NFS Suddenly Stops Working

Hi there,
My NFS server on Red Hat Enterprise Linux ES4 serves for user's home
directories.
The entry in the /etc/exports is like this: /home/users
10.2.0.0/255.255.0.0(no_auth_nlm,rw,async,insecure)
It suddenly can not be mounted today. When I try to mount it I get the
error:
# mount server02:/home/users/ross /home/ross
mount: block device server02:/home/users/ross is write-protected, mounting
read-only
mount: cannot mount block device server02:/home/users/ross read-only

If I add "no_root_squash,no_all_squash" to the /etc/exports entry, I can
mount it, but I get error when I ls it:
bash-2.05a$ cd /home/ross
bash-2.05a$ ls
ls: .: Stale NFS file handle

Any idea would be greatly appreciated,
Ross

On 2007-03-30, Ross <nospam@ross.com> wrote:
> Hi there,
> My NFS server on Red Hat Enterprise Linux ES4 serves for user's home
> directories.
> The entry in the /etc/exports is like this: /home/users
> 10.2.0.0/255.255.0.0(no_auth_nlm,rw,async,insecure)
> It suddenly can not be mounted today. When I try to mount it I get the
> error:
> # mount server02:/home/users/ross /home/ross
> mount: block device server02:/home/users/ross is write-protected, mounting
> read-only
> mount: cannot mount block device server02:/home/users/ross read-only
>
> If I add "no_root_squash,no_all_squash" to the /etc/exports entry, I can
> mount it, but I get error when I ls it:
> bash-2.05a$ cd /home/ross
> bash-2.05a$ ls
> ls: .: Stale NFS file handle
>
> Any idea would be greatly appreciated,

I'd be worried that the filesystem got remounted ro on the server. Check
the server logs for FS errors.

--
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University

Ross wrote:

> Hi there,
> My NFS server on Red Hat Enterprise Linux ES4 serves for user's home
> directories.
> The entry in the /etc/exports is like this: /home/users
> 10.2.0.0/255.255.0.0(no_auth_nlm,rw,async,insecure)
> It suddenly can not be mounted today. When I try to mount it I get the
> error:
> # mount server02:/home/users/ross /home/ross
> mount: block device server02:/home/users/ross is write-protected, mounting
> read-only
> mount: cannot mount block device server02:/home/users/ross read-only
>
> If I add "no_root_squash,no_all_squash" to the /etc/exports entry, I can
> mount it, but I get error when I ls it:
> bash-2.05a$ cd /home/ross
> bash-2.05a$ ls
> ls: .: Stale NFS file handle
>
> Any idea would be greatly appreciated,
> Ross


Check the server. It has filesystem problems...


--


Jerry McBride