Dear Listers,
z/OS 2.1 NFS Server
Ubuntu 15.04 client
I am trying to share a directory tree that resides on my mainframe Unix System
Services. This tree consists of a number of zFS file systems, locally mounted.
For this, I have set up the GFSAPROC started task that implements the NFS
server. I have basically used the sample set-up with only minor changes. I have
set security(saf,saf,saf) in the site attributes.
I have downloaded the source code for the mvslogin set of commands to the
client and have built these commands successfully. Login is successful with an
informational message like this:
GFSA978I JANTJE logged in ok.
Mismatch in uid/gid: z/OSUNIX uid is 1234, gid is 500,
client uid is 1000, gid is 1000.
Next, I have mounted the directory tree like thus:
sudo mount -t nfs -o vers=3 mainframe:/hfs/u /mnt
So far, so good, I can see the root of the tree and its sub-directories. But
none of the file systems that are mounted on these sub-directories on the
mainframe. This is to be expected with NFS version 3 protocol, as that version
does not support crossing these server mount points.
OK, let's switch to NFS version 4 then.
sudo umount -f /mnt
sudo mount -t nfs -o vers=4 mainframe:/hfs/u /mnt
Now when I ls /mnt, I get this:
user@WGC:~$ ls -la /mnt
ls: cannot access /mnt/JNI: Unknown error 521
ls: cannot access /mnt/CAF2: Unknown error 521
ls: cannot access /mnt/BOUM: Unknown error 521
total 3
drwxr-xr-x 13 nobody 4294967294 8192 Jul 16 13:57 .
drwxr-xr-x 22 root root 4096 Jul 10 18:59 ..
d????????? ? ? ? ? ? BOUM
d????????? ? ? ? ? ? CAF2
d????????? ? ? ? ? ? JNI
user@WGC:~$
Server side, there is no entry in the log, not a single indication of any error
whatsoever.
I have spent the afternoon googling for this error message and found tons of
articles about it with various suggestions, but none that have helped me solve
the problem.
Any suggestion of what setting I have missed?
Thanks and very best regards,
Jantje.
P.S.
Yes, I know, if I put this question to Google, it turns up an article from
redhat with exactly this subject. Only, it does not show me the solution. I do
not have a subscription at redhat and I am not prepared to spend that amount of
dollars.
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