NFS mount permission denied

sidra · 02-27-2008, 03:24 PM

I'm trying to export a directory on a server and mount it from another server. The error given is as below:

mount: IP:/dir failed, reason given by server: Permission denied

My /etc/exports file looks like this:

/dir IP/Netmask(rw,sync,no_root_squash)

I tried the insecure option in the /etc/exports file but it doesn't work. I also tried giving the IP of the specific machine in the /etc/exports file where i'm trying to carry out the mount but it's the same error.

Can anyone help?

BrianK · 02-27-2008, 03:26 PM

Quote:

Originally Posted by sidra

I'm trying to export a directory on a server and mount it from another server. The error given is as below:

mount: IP:/dir failed, reason given by server: Permission denied

My /etc/exports file looks like this:

/dir IP/Netmask(rw,sync,no_root_squash)

I tried the insecure option in the /etc/exports file but it doesn't work. I also tried giving the IP of the specific machine in the /etc/exports file where i'm trying to carry out the mount but it's the same error.

Can anyone help?

How are you trying to mount? Are you doing it as root or a normal user? Is the mount listed in your fstab or are you doing it by hand?

sidra · 02-27-2008, 05:40 PM

Doing it by hand as root

mount IP:/dir /mnt/temp

Also tried:
mount -t nfs IP:/dir /mnt/temp

Doesnt' work!

harsshal · 02-28-2008, 02:50 AM

try to have entry in exports as

/tmp *(rw)

* indicates the whole world.

sidra · 02-28-2008, 01:28 PM

Doesn't work, same error!

BrianK · 02-28-2008, 04:08 PM

hrm... I'm not on my normal network right now, so I don't remember the exact commands to tell, but are you sure NFS is running on the server? are you sure the exports are exporting (did you do an "exportfs -ra" - again, I don't remember if that's the exact command, but it's something like that). Do you have rpcd & mountd running on the server? There's some file in /proc that shows the exports... something like /proc/net/nfs/exportfs - an nfs howto would tell you... anyway, that's another good way to tell if nfs is running... is that there?

sorry to be so vague.

harsshal · 02-28-2008, 11:53 PM

to start nfs

# /etc/init.d/nfs

To export the /usr/tmp directory to host harshal, allowing asynchronous writes, one would do this:

# exportfs -o async harshal:/usr/tmp

(oops.I'm using FC 8)

jschiwal · 02-29-2008, 12:42 AM

For reference, here are 4 of my desktop's /etc/exports entries:

Code:

/home/jschiwal/podcasts 192.168.1.0/255.255.255.128(rw,root_squash,sync,no_subtree_check)
/home/jschiwal/music    192.168.1.0/255.255.255.128(rw,root_squash,sync,no_subtree_check)
/home/jschiwal/Documents        192.168.1.0/255.255.255.128(rw,root_squash,sync,no_subtree_check)
/home/jschiwal/downloads         192.168.1.0/255.255.255.128(rw,root_squash,sync,no_subtree_check)

Here are a couple corresponding entries in my laptop:

Code:

hpmedia.jesnet:/home/jschiwal/downloads /mnt/hpmedia/downloads          nfs     defaults,rsize=32768,wsize=32                           768,_netdev 0 0
hpmedia.jesnet:/home/jschiwal/Documents /mnt/hpmedia/Documents          nfs     defaults,rsize=32768,wsize=32                           768,_netdev 0 0

Also check your firewall settings, and read /var/log/messages for clues.

I wonder if SELinux might be denying the reading of /etc/exports or files in /var/lib/nfs/.
What does "showmount -e <hostname>" show?

jdavis2 · 02-29-2008, 04:49 PM

Maybe this poster's solution could help you.
Disregard. Not the same issue.

Loosewheel · 02-29-2008, 07:27 PM

sidra,
I have that problem, (permission denied), trying to access nfs shares on an Ubuntu box from a machine running PCLinuxOS. No problem what so ever accessing the nfs shares on PCL from Ubuntu.
If I run exportfs -a on Ubuntu box, I can then access the files.

This morning I had Ubuntu running for more than a hour before starting up PCL. And guess what. I was able to access the files.

sidra · 03-03-2008, 03:47 PM

So are you saying you have nothing in your /etc/exports file and you are just doing exportfs -a, what is the exact command you are using?