topic Re: mount NFS locally - permission denied in Operating System - HP-UX

mount NFS locally - permission denied

BrianDoyle — Tue, 29 Apr 2008 07:10:22 GMT

Hi,
On my HPUXv3 box im trying to mount an exported TRU64 directory.

#showmount -e shows the correct filesytem.

It's listed in the client fstab
nfs_tru64server_ip:/dir /mount_point nfs nointr,noac,forcedirectio,rw,bg,suid 0 0

mount -F nfs nfs_server_ip:/dir /mount_point gives the message:
nfs mount: ip_address:/dir: Permission denied

Any thoughts where the problem is?

Re: mount NFS locally - permission denied

MarkSyder — Tue, 29 Apr 2008 07:20:46 GMT

The first thought that occurs is that the filesystem has not been exported from the remote box.

Mark Syder (like the drink but spelt different)

Re: mount NFS locally - permission denied

Sajjad Sahir — Tue, 29 Apr 2008 07:31:28 GMT

make an entry in /etc/exports file

eg:
/home/sajjad/tmp1 -access=server2
exportfs -a

check the file permission of /home/sajjad/tmp1
ls -l /home/sajjad/tmp1
give proper permission for that directory
this is the root cause u are getting permission denied error
check u true64 directory i am sure u diddn't give proper permission for that directory just give grant permission
then try
in server2
make a dir
tmp2
mount server1:/home/sajjad/tmp1 /tmp2

cd /tmp2
u can see u file there

Re: mount NFS locally - permission denied

Matti_Kurkela — Tue, 29 Apr 2008 07:40:17 GMT

Can the server host (TRU64) resolve the name of the client (HPUX) correctly?

Verify by running these commands on the NFS server (TRU64):
nslookup
nslookup

Both nslookup commands should give the same name & address pair as a result. If not, you have a DNS problem.

Also check the /etc/hosts file on the tru64 server: if it has obsolete information, it may locally override the good information in DNS.

MK

Re: mount NFS locally - permission denied

BrianDoyle — Tue, 29 Apr 2008 09:03:50 GMT

Mark>
The filesystem has been exported from the tru64 server (exportfs -a)

Sajjad>
Im using 11iv3 so theres no /etc/exports file. It uses dfstab instead. I appreciate the post though.

Matti>
Name resolution is fine from both sides, by hostname and IP. hosts file also

Re: mount NFS locally - permission denied

BrianDoyle — Tue, 29 Apr 2008 09:06:17 GMT

The directory i want to share looks like this:

drwxr-xr-x 3 500 dba 8192 Nov 6 15:49 tmpsso

Are permissions and owner/group details ok?

Re: mount NFS locally - permission denied

Sajjad Sahir — Tue, 29 Apr 2008 09:12:37 GMT

dear

can u remount it again
i mean stop mount
then remount then it will get rw permission

sajjad

Re: mount NFS locally - permission denied

Sajjad Sahir — Tue, 29 Apr 2008 09:13:45 GMT

dear

can u give grant permission to that file
i mean chmod 777 then just check it
please revert back

sajjad

Re: mount NFS locally - permission denied

Sajjad Sahir — Tue, 29 Apr 2008 09:14:19 GMT

dear

can u give grant permission to that file
i mean chmod 777 then just check it
please revert back also
can u mount wiht hostname not an ip

sajjad

Re: mount NFS locally - permission denied

MarkSyder — Tue, 29 Apr 2008 09:21:16 GMT

Quote: Sajjad>
Im using 11iv3 so theres no /etc/exports file. /Quote

I think Sajjad was referring to the /etc/exports file on the TRU64 box, not the HP-UX box.

Mark

Re: mount NFS locally - permission denied

Sajjad Sahir — Tue, 29 Apr 2008 09:46:06 GMT

Dear Slyder

it was by mistakely happened

thanks and regards

sajjad

Re: mount NFS locally - permission denied

BrianDoyle — Tue, 29 Apr 2008 09:56:15 GMT

Sorry Sajjad, didnt realize you referred to the server.

I tried to mount with the hostname. Changed teh permissions to 777 and root:sys. Still the same - permission denied.

It's a strange one.....

nfs_server# showmount -e
Exports list on localhost:
/tmpsso client1 client2

so everythings ok there.
i exported it out to a different tru64 server and it worked but still cant mount it on hpux

Does this look ok? in fstab
nfs_tru64server_ip:/dir /mount_point nfs nointr,noac,forcedirectio,rw,bg,suid 0 0

Re: mount NFS locally - permission denied

BrianDoyle — Tue, 29 Apr 2008 10:13:59 GMT

Changed the hosts file on the nfs server from hostname to IP and it worked again.

Still puzzled why this made any difference but a fix is a fix. hostame resolving can be tricky

Many thanks to all who contributed.

briano