topic Re: nfs problem in Operating System - HP-UX

nfs problem

shinoj_1 — Fri, 21 Nov 2008 13:22:36 GMT

I have exported a FS in rw mode and mounted on other server in rw mode. But i get read only filesystem error while I try to write on the other node.

on serverA (nFS server)

#cat /etc/exports
/ABC/pqr/xyz -rw=serverB

#cat /etc/xtab
/ABC/pqr/xyz -rw=serverB

#showmount -e
export list for serverA:
/ABC/pqr/xyz (everyone)

on server B
============

mount -F nfs -o rw serverA/ABC/pqr/xyz /ABC/pqr/xyz

bdf /uipmsreg1/sftp/ipmsreports
Filesystem kbytes used avail %used Mounted on
serverA/ABC/pqr/xyz 20480000 10905016 9425408 54% /ABC/pqr/xyz
cd /ABC/pqr/xyz
#touch test
touch: test cannot create

if i do vi and try saving,its showing filesystem is read only.
Please help on this issue.

thanks
so

Re: nfs problem

Jaime Bolanos Rojas. — Fri, 21 Nov 2008 13:36:12 GMT

Shinoj,

Did you run the exportfs -av command after modifying the exports file?

Regards,

Jaime.

Re: nfs problem

V. Nyga — Fri, 21 Nov 2008 13:45:35 GMT

Hi,

also check your permissions at /ABC/pqr/xyz .
Can you show us 'll' of /ABC/pqr on server B?

Volkmar

Re: nfs problem

Analyst — Fri, 21 Nov 2008 13:50:20 GMT

Shinoj,

I Think this will help your cause...

exportfs -avu

-a -->exports all the entries made in /etc/exports file.

-u -->unexports the old exported nfs file systems

-v -->obviously verbose mode.

Re: nfs problem

Dennis Handly — Fri, 21 Nov 2008 14:33:30 GMT

>/ABC/pqr/xyz -rw=serverB

Are you using a FQDN for serverB?
If that doesn't work, you could try the IP.

Re: nfs problem

pa8700 — Fri, 21 Nov 2008 17:02:39 GMT

export with anon=2 option and try

Re: nfs problem

OldSchool — Fri, 21 Nov 2008 18:09:00 GMT

On serverA (the nfs server) what are the permissions on dir /ABC/pqr/xyz?

if they are not set to 777 you will not be able to create files / directories
directly under it. Deleting would be prohibited as well, I believe. If there are existing directories under /ABC/pqr/xyz, you would be able to do stuff within them, permissions permitting.

"
Filesystem kbytes used avail %used Mounted on
serverA/ABC/pqr/xyz 20480000 10905016 9425408 54% /ABC/pqr/xyz
cd /ABC/pqr/xyz
#touch test
touch: test cannot create"

BTW: you obfuscated names everywhere but the bdf command...

Re: nfs problem

john123 — Fri, 21 Nov 2008 18:14:35 GMT

Try by exporting by the option -root="nfs-client-name"

Because by default NFS will treat root user as anon user due to security reasons.

Are u able to create file if u login as another user who has permission to write on the directory

Regards
John

Re: nfs problem

shinoj_1 — Mon, 24 Nov 2008 15:06:18 GMT

Thanks to all for the reply.
Special thanks to Dennis Handly for giving the perfect solution. it worked after exporting using the FQDN.

Points have been assigned to all.

Thanks Again
shinoj

Re: nfs problem

shinoj_1 — Mon, 24 Nov 2008 15:08:05 GMT

Closing the thread as solution is found.