NFS Server trouble - mount.nfs access denied

English Network/Internet
#1

I have configured the NFS Server through the Yast2 module on my newly installed openSUSE box. I created a /share mount from my second hard drive which have the folders Musik and Videos. Here is my /etc/exports

hansoffate@reborn:~/Desktop> cat /etc/exports
/share/Musik	192.168.1.1/24(rw,no_root_squash,async)
/share/Videos	192.168.1.1/24(rw,no_root_squash,async)

I also use an Ubuntu system as my HTPC which I’d like to be able to have access to these folders. However, when I try to mount it, I get an access denied error. I made sure my firewall is off (for the time being) and that my ip address is correct.

Any help would be greatly appreciated.
-Hans

hansoffate@grunt:/share/Videos$ sudo mount 192.168.1.112:/share/Videos /share/Videos/Upstairs_Videos/
mount.nfs: access denied by server while mounting 192.168.1.112:/share/Videos
hansoffate@grunt:/share/Videos$ sudo mount 192.168.1.112:/share/Musik /share/Musik
mount.nfs: access denied by server while mounting 192.168.1.112:/share/Musik
#2

Some basic checks

On the server do “rpcinfo -p localhost” in a terminal. This will give a listing of running RPC programs that has to include mountd, portmapper, nfs, and nlockmgr.

On the client do “rpcinfo -p”, which has to return status, portmapper, and nlockmgr as running.

#3

I suggest trying disabling NFS4 temporarily to test whether it’s the problem.

Edit /etc/sysconfig/nfs -> NFS4_SUPPORT=“yes” -> NFS4_SUPPORT=“no”

Restart the NFS server.

#4

From server:

hansoffate@reborn:~/Desktop> rpcinfo -p localhost

Program 'rpcinfo' is present in package 'glibc', which is installed on your system.

Absolute path to 'rpcinfo' is '/usr/sbin/rpcinfo', so it might be intended to be run only by user with superuser privileges (eg. root).

bash: rpcinfo: command not found
hansoffate@reborn:~/Desktop> sudo rpcinfo -p localhost
root's password:
sudo: rpcinfo: command not found
hansoffate@reborn:~/Desktop>

From client:

hansoffate@grunt:~/Documents/steve/ppdp-fastaget$ rpcinfo -p
   program vers proto   port
    100000    2   tcp    111  portmapper
    100000    2   udp    111  portmapper

I also changed /etc/sysconfig/nfs so that NFS4_SUPPORT=“no”

I wonder why rpcinfo isn’t working on the server, even though it says the package is installed.

Thanks for the help,
-Hans

#5

On your server, for openSUSE, you actually have to su to root to run rpcinfo.

On your client it looks like nfs-common isn’t installed or is not running.

sudo apt-get install portmap nfs-common

to install the needed apps. Then

sudo /etc/init.d/portmap restart
sudo /etc/init.d/nfs-common restart

if they still don’t show up using rpcinfo.

#6

BTW portmap is now called rpcbind on recent releases.

#7

Thanks for the help msharnden. I was able to get rpcinfo working and it looks like everything is running correctly. Also, when trying the apt-get install line on my client ubuntu system, those packages seem to be installed. Do you think I’m having the nfs issue because I haven’t setup /etc/hosts.allow? I am not using any firewall, so I don’t think this is the issue. Any other ideas what might be causing this issue?

-Hans

hansoffate@grunt:~/Documents/steve/ppdp-fastaget$ sudo apt-get install portmap nfs-common
[sudo] password for hansoffate: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
portmap is already the newest version.
nfs-common is already the newest version.
The following packages were automatically installed and are no longer required:
  setserial imagemagick
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 136 not upgraded.


reborn:/home/hansoffate/Desktop # rpcinfo -p localhost
   program vers proto   port  service
    100000    4   tcp    111  portmapper
    100000    3   tcp    111  portmapper
    100000    2   tcp    111  portmapper
    100000    4   udp    111  portmapper
    100000    3   udp    111  portmapper
    100000    2   udp    111  portmapper
    100005    1   udp  42649  mountd
    100005    1   tcp  38675  mountd
    100005    2   udp  42649  mountd
    100005    2   tcp  38675  mountd
    100005    3   udp  42649  mountd
    100005    3   tcp  38675  mountd
    100024    1   udp  52939  status
    100024    1   tcp  50173  status
    100003    2   udp   2049  nfs
    100003    3   udp   2049  nfs
    100021    1   udp  55708  nlockmgr
    100021    3   udp  55708  nlockmgr
    100021    4   udp  55708  nlockmgr
    100003    2   tcp   2049  nfs
    100003    3   tcp   2049  nfs
    100021    1   tcp  48640  nlockmgr
    100021    3   tcp  48640  nlockmgr
    100021    4   tcp  48640  nlockmgr
#8

Take a look at your exports file. I believe you want 192.168.1.0/24 to export to all machines on your network. After changing it, as root, run exportfs -ra to re-export the shares.

#9

I tried changing it to 192.168.1.0/24 and 192.168.1.109 (ip of the client) and just *. All of them had the same access denied error when typing : sudo mount 192.168.1.112:/share/Videos /share/Videos/Upstairs_Videos/

Could it be a directory permissions/ownership problem? I can’t believe this share is causing such a problem. Every other time I have made my nfs shares with ubuntu, mandrake, or fedora, I never ran into this problem.

Thanks for the help,
-Hans

#10

What do you see in the log on your server? I did a quick test setup using the defaults that Yast presented and using openSUSE 11.1 as the server and a Ubuntu 8.04 machine as the client.

So my exports file looks like this.

/mnt/music      *(fsid=0,ro,root_squash,sync,no_subtree_check)

I see in /var/log/messages

authenticated mount request from 192.168.1.11:839 for /mnt/music (/mnt/music)

when I connect.

As a side note, I turned off NFS4 on the server and wasn’t able to connect.

#11

I have had nfs4 turned off. I just tried turning it on , but I still have the same issue. When I get home tonight, I am going to reload the openSUSE box and setup the NFS share first thing to see if it will work.

-Hans

#12

I just did a fresh install of openSUSE. I installed the YAST2 NFS server, turned off the firewall, then launched the configuration gui, and set up my shares. I tried connecting with my ubuntu box, and I still have the error, mount.nfs: access denied. I don’t understand what can be causing this problem because it was working with my ubuntu installation 4 days ago.

-Hans

#13

What does the system logs say on the server? Is it rejecting the connection?

When you restart the services on the Ubuntu machine

sudo /etc/init.d/portmap restart
sudo /etc/init.d/nfs-common restart

both restart cleanly?

How about the logs on the Ubuntu machine?

#14

SOLVED:

After waiting a few days, reinstalling opensuse another time, and going over my logs on both my client and server, I have finally got it working. The thing is, I have changed nothing in my setup procedure. I think the client was the one to blame for the error though.

Thanks for all the help.
-Hans