Red Hat

My first thought here was that you might need to use the name mapping daemon (idmapd) to map the names/ids across the different OS's.

What does "ls -nd" on the affected directories show?

If the actual UID/GID are shown as the same, then the problem is in the particular server's maping of IDs to names.

And if they IDs are different, things are really weird....

You see the "oops" in your suggestion, correct? The group on one system is listed as "nobody" so ls -nd is going to show the gid (99) for nobody. On the other system, it's going to show the gid for the correct group. So they will never match until I get this fixed.

What oops?

Not one post in this thread has shown the actual numeric IDs.

Until you know what the numeric IDs actually are, you can't tell where your problem is. Are the IDs getting changed from the server? Or the client? Or just in the ID lookup?

When an nfs-receiving system cannot resolve a groupname/gid, by default and design, it assigns that file/directory to the "nobody" group. Nobody is a real group. On RH7, it is gid 99.

What is happening is that the nfs-sharing server is providing the groupname/gid acrn/10001, and the nfs-receiving system can't understand something about that. So, it bails out and gives it to nobody.

I think you were expecting that the receiving system would list the group for the directory as 10001 but somehow think the groupname for 10001 was nobody. It doesn't work that way. The directory is nobody (gid 99).

Code:

#ls -l /data/acrn
drwxrwx--x  51 jsmithi nobody         66 Oct 24 07:24 acrn
# ls -ln /data/acrn
drwxrwx--x  51 119    99    66 Oct 24 07:24 acrn
# id -a 99
uid=99(nobody) gid=99(nobody) groups=99(nobody)

It's doing exactly what's expected because it doesn't understand or know the group acrn/10001...it gives the directory to nobody. But it does know acrn.

Code:

# id -g acrn
10001

That's the problem from the original post.

Can you repeat your last commands with -d option?

Code:

ls -ld ...
ls -ldn ...

Enough. It produces the same result...just as expected. I'll figure it out myself. End of this discussion.