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I can't see why NFS doesn't work, so I'm reporting a bug. (Sorry). <From the Server> root@neuromancer /sbin]# /usr/sbin/exportfs wintermute.bullgod.co.uk:/data <world> wintermute.bullgod.co.uk:/data <world> zen.bullgod.co.uk:/data <world> zen.bullgod.co.uk:/data <world> [root@neuromancer /sbin]# /usr/sbin/showmount -e Export list for neuromancer: zen.bullgod.co.uk:/data (everyone) wintermute.bullgod.co.uk:/data (everyone) The client (wintermute) attempts to mount neuromancer:/data on /data: [andy@neuromancer andy]$ rlogin wintermute Last login: Sat Nov 20 00:06:13 on :0 $ mount /data/ mount: neuromancer:/data failed, reason given by server: Permission denied [root@neuromancer /sbin]# tail -4 /var/log/messages Nov 20 12:28:47 neuromancer nfs: rpc.mountd startup succeeded Nov 20 12:28:47 neuromancer kernel: Installing knfsd (copyright (C) 1996 okir@monad.swb.de). Nov 20 12:28:48 neuromancer nfs: rpc.nfsd startup succeeded Nov 20 12:34:51 neuromancer mountd[1504]: refused mount request from wintermute.bullgod.co.uk for /data (/): no export entry Communication between wintermute & neuromancer is working enough for X to work both ways. rpc.mountd / knfsd all appear to be fine, so why the Permission denied and mount refused? AMP
I am seeing the same thing on 2 machine here. Except for me the problem goes away if I specify each host by name in /etc/hosts. It does not work for something like @netgroup or *.wlv.hp.com. I am totally confused. I have 6 boxes identically configured. I see this problem on 2 of them but the other 4 work fine. Help!!!! --John Cavanaugh
Oops that should have been /etc/exports... --John C
I have the same terrible problem here. It makes RH61 useless and I'm going to downgrade again to RH52 :-( I really don't understand that bugs in such an important service as NFS doesn't get the highest priority at RH :-((( Maybe this small report will help a bit: My /etc/exports: / asterix(rw,no_root_squash) / idefix(rw,no_root_squash) / obelix(rw,no_root_squash) / abraracourcix(rw,no_root_squash) / panoramix(rw,no_root_squash) Entering: "exportfs -av" gives: exporting panoramix:/ exporting abraracourcix:/ exporting obelix:/ exporting idefix:/ exporting asterix:/ So far OK (except that locally mounted directories aren't accessible through NFS!!!) adding the line /home/windows asterix(rw) abraracourcix(rw) idefix(rw) to /etc/exports (/home/windows/ is on the same partition as /) gives: "exportfs -av" exporting idefix:/home/windows idefix:/home/windows: Invalid argument exporting abraracourcix:/home/windows abraracourcix:/home/windows: Invalid argument exporting asterix:/home/windows asterix:/home/windows: Invalid argument exporting panoramix:/ exporting abraracourcix:/ exporting obelix:/ exporting idefix:/ exporting asterix:/ An /etc/exports with: / 192.168.100.0/24(rw,no_root_squash) gives NFS connection on some machines, but others get "Permission denied" while the station that sees "permission denied" appears in /var/lib/nfs/xtab. When changing something an "/etc/rc.d/init.d/nfs stop-start" is absolutely necessary. When a workstation is unmounted, its entry stays in the xtab file. I understood from the docs that the line should be removed in that case. The only thing that seems to "work" is mentioning all workstations one by one in /etc/exports. Two or more mountpoints on for the same workstation is not possible. I discovered this bug after a few days, while the kNFSd service was one of the first services that I installed. If this bug had been present from the beginning I would certainly have remarked it the first day. During the first few days I installed all sorts of services on that machine (maybe a file or a lib overwritten?). Kernels: 2.2.12-20 (original and modified) and 2.2.13, now I going to compile 2.2.14 that came out yesterdaynight. If that resolves the problem you'll certainly hear from me. Maybe it would be an idea to make some RH61-rpm's for the RH52 version of the nfs programs? Please find a solution to this problem asap, the knfsd isn't even an alpha version (with respect for the one(s) who work(s) on it of course). Workstations: RH52 and RH61. All i486/i586/i686. Installed from original release and upgraded with all rpm's from ftp-server. Richard Lucassen. Btw: I have a few files here if somebody is interested: "strace exportfs -av 1>exports.1 2>exports.2" I have a very 'stable' buggy version here.
I downloaded "nfs-server-2.2beta47-1.src.rpm" from the update-directory of RH52, rebuilt it and installed it. Until now (knock, knock on wood) this seems to work fine. Please mail me if I do something stupid (I'm not a Linux expert). Richard.
You need to export each mount point separately. Ie if / and /data are on different partitions, you need to list both / and /data in /etc/exports.
Yes ok, I understand that (it seems that this is the original way of mounting directories, I heard this morning), and I can live with that. But the problem is still the same: "Invalid argument" as mentioned above. knfsd doesn't let a client mount two directories on the exporting server. "Permission denied" is the answer that the client gets, while there should be no reason for a denial. This bugreport starts with this "permission denied" story. In that case an "exportfs -av" on the server gives: NFS_server:'/exported_dir': Invalid argument This is really not normal behaviour. If I enter in /etc/exports: / 192.168.100.0/24(rw) some machines in the 192.168.100.* network can mount the exported directory, some cannot. They get "permission denied", even though the /var/lib/nfs/xtab indicates that everything is ok. I admit that I regularly do and say stupid things and I still consider myself as a newbee but IMHO this is really a bug and not a feature ;-) Richard.