Originally posted by: SystemAdmin

Hi, all.

Trying to nfs mount a cdrom, but keep getting errors below. Also tried with normal jfs, but failed too.
What could go wrong with it?

1. mount hostname:/cdrom /nfs/cdrom

mount: 1831-008 giving up on:
vaix:/cdrom
vmount: The file access permissions do not allow the specified action.
NFS fsinfo failed for server vaix: error 7 (RPC: 1832-010 Authentication error)

• NFS Server : AIX 5.3 TL8 SP04
• NFS Client : AIX 5.3 TL4
• /etc/hosts files are identical
• dfshares command shows correct information.

Thanks in advance.
#AIX-Forum

Originally posted by: SystemAdmin

Is the NFS share for everyone, or just the one client?
Can you post the results of the following command from the client:

showmount -e server

What are permissions for the /cdrom filesystem on the server?
#AIX-Forum

Originally posted by: SystemAdmin

Here is the result from the client
The NFS is share for the nfs client only.

$ showmount -e nfsserver
export list for nfsserver:
/cdrom nfsclient

From the server, /cdrom has read-only permission.
#AIX-Forum

Originally posted by: SystemAdmin

NFS parameters “nfs_use_reserved_ports” and “portcheck” were set to 0 and were needed to be set to 1:

1. nfso -a | grep port

nfs_use_reserved_ports = 0
portcheck = 0

1. nfso -po portcheck=1

Setting portcheck to 1
Setting portcheck to 1 in nextboot file

1. nfso -po nfs_use_reserved_ports=1

Setting nfs_use_reserved_ports to 1
Setting nfs_use_reserved_ports to 1 in nextboot file

1. nfso -a | grep port

nfs_use_reserved_ports = 1
portcheck = 1
#

Later on I retried the mount without issues:
Hope this is useful for you.
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