NFS Server on openSUSE 11 and client on openSUSE 10.3

[jiramares]

Hi,

I have installed openSUSE 11 on mine server (name: srv), migrated also NFS server content. The server configuration has been performed using YaST and is:

- no NFS v4
- export is configured
- Directory: /home/nfs/public
- Host Wild Card: *empty*
- options: rw,root_squash,sync

The client is running openSUSE 10.3 and the NFS is also configured using YaST:

- Server: srv
- Remote file system: /home/nfs/public
- Mount point: /nfs/public
- Options: defaults

The NFS is mounted ok. The users and groups are synchronized, means the UID and GID has the same meaning on both servers. I can read from the NFS but can't delete or write new file. The command l on directory /nfs/public:

drwxrwxr-x 10 root    users      4096 2008-08-23 12:39 ./
drwxr-xr-x  7 root    root       4096 2008-05-06 09:58 ../
-rw-rw-r--  1 jmares  users      9022 2007-06-25 23:40 icon.xpm

the command: rm icon.xpm
rm: cannot remove `icon.xpm': Permission denied

and command: echo a > a.txt
bash: a.txt: Permission denied

I think the configuration is okay ...

Thanks a lot for any help.

Jirka

[0ctane]

I am having similar troubles, and it does not matter if the client is 10.3 or 11.0. I configured the client using yast without the "NFSv4 Share" option. When I cd into the mount:

> touch test
touch: cannot touch `test': Read-only file system

My /etc/fstab line looks like this:

192.168.7.1:/home	/server1	nfs	defaults 0 0

and my server's /etc/exports looks like this:

/home (rw,root_squash,sync,no_subtree_check)

The names, UIDs, and GIDs are all the same between systems.

On a side note, whenever I select the "NFSv4 Share" client option, I get a "Error Unable to mount the NFS entries from /etc/fstab." message.

Disabling NFSv4 on the server side (in Yast) did not help.

On my 10.3 server, I can export /home and the 10.3 and 11.0 clients have no troubles reading an writing to the share.

Any help would be greatly appreciated. I have been trying every permutation that I can think of.

[beli0135]

Same trouble here, but then I asked myself is NFS really necessary. Since it wasnt and I needed simple file sharing between laptop and desktop, I just configured samba, its easy and works OK.
My samba server was on 10.3 while client was 11.0

[BotKeeper]

This problem could be because "root" owns the directory. Did you export with "no_root_squash" (if that was desired)?

[jiramares]

Hi,

I tried no_root_splash but no change. Then I tried change the owner from root to jmares and still no change.

I missed mension that I'm trying it as user jmares.

Jirka

[BotKeeper]

NFS can be a little difficult. I've recently completed a few NFS3 and NFS4 configurations for RHEL 5, openSUSE, and Mandriva.

NFS3 is difficult because of firewall issues. NFS3 requires a handful of ports that change each time the service is restarted. Each distribution is different in the means to lock ports. I've had troubles with RHEL 5 and lockd timeouts. I could not determine cause and used NFS4.

NFS4's firewall is easier because it requires only two ports: portmap and nfs. However, with NFS4, you need

• /etc/idmapd.conf must have a common domain.
• For server, all exports must be rooted from a common directory (e.g., /export). Use the bind option to mount to mount a directory within the /export tree
• The top level directory must have an "fsid=0" option

However, since your mount completes, do the following:

• On server: I've had better success with kernel NFS server rather than the user space daemon
• On server: "exportfs -v" to verify settings.
• On client: "showmount -e server" to make sure client sees
• On client: "cat /proc/mounts" to ensure the mount was done rw.

[jiramares]

Hi, thank for your help:

So I enabled NFS v4 on server. Created one root export, eg. /home/nfs with fsid=0 and it contains other 3 exports where one of them is /home/nfs/public. In /etc/idmapd.conf is specified domain.

I think I use kernel daemon, but don't know howto check. the command "exportfs -e" is not working for me (no exportfs binary available).

On client "showmount -e server" shows:
Export list for server:
/home/nfs <anon clnt>
..
/home/nfs/public <anon clnt>

and "cat /proc/mounts" contains:
..
ids:/home/nfs/public /nfs/public nfs rw,vers=2,rsize=8192,wsize=8192,hard,proto=tcp,tim eo=600,retrans=2,sec=sys,addr=ids 0 0
..

The server root directory /home/nfs is not mounted on client.

I think everything looks ok, but there is file (i'm user jmares in group users):

from server:

l /home/nfs/public/icon.xpm
-rw-rw-r-- 1 jmares users 9022 2007-06-25 23:40 /home/nfs/public/icon.xpm

from client:

l /nfs/public/icon.xpm
-rw-rw-r-- 1 jmares users 9022 2007-06-25 23:40 /nfs/public/icon.xpm

and

touch /nfs/public/icon.xpm
touch: setting times of `/nfs/public/icon.xpm': Permission denied

Jirka