nfs mount with nfs 3

Question

I am running CentOS 6.4 Kernel version 2.6.32-358.23.2.el6.x86_64 #1 SMP and have the following nfs info:

nfs-utils-lib-1.1.5-6.el6.x86_64
nfs4-acl-tools-0.3.3-6.el6.x86_64
nfs-utils-1.2.3-36.el6.x86_64

and am trying to mount an NFS volume with nfs3. I have the following line in my fstab:

172.16.11.87:/volume1/web /home/nas nfsver=3 rsize=8192,wsize=8192,timeo=14,intr(no_root_squach)

When I run nfsstat it still shows the client as nfs4

Server rpc stats:
calls      badcalls   badauth    badclnt    xdrcall
0          0          0          0          0       

Client rpc stats:
calls      retrans    authrefrsh
1988817    6          1988818

Client nfs v4:

null         read         write        commit       open         open_conf    
0         0% 36943     1% 21606     1% 401       0% 392369   19% 375986   18% 
open_noat    open_dgrd    close        setattr      fsinfo       renew        
0         0% 0         0% 387945   19% 22904     1% 3         0% 2914      0% 
setclntid    confirm      lock         lockt        locku        access       
1         0% 1         0% 0         0% 0         0% 0         0% 97856     4% 
getattr      lookup       lookup_root  remove       rename       link         
613996   30% 29888     1% 1         0% 1248      0% 253       0% 414       0% 
symlink      create       pathconf     statfs       readlink     readdir      
26        0% 226       0% 2         0% 3         0% 0         0% 3825      0% 
server_caps  delegreturn  getacl       setacl       fs_locations rel_lkowner  
5         0% 0         0% 0         0% 0         0% 0         0% 0         0% 
exchange_id  create_ses   destroy_ses  sequence     get_lease_t  reclaim_comp 
0         0% 0         0% 0         0% 0         0% 0         0% 0         0% 
layoutget    layoutcommit layoutreturn getdevlist   getdevinfo   ds_write     
0         0% 0         0% 0         0% 0         0% 0         0% 0         0% 
ds_commit    
0         0%

Sorry should have said that in my original post, its CentOS 6.4 — rahrahruby, Nov 11 '13 at 18:54
also post kernel version and nfs client package version, might be helpful as well. — Danila Ladner, Nov 11 '13 at 19:01
Let me see version of the server nfs package, it looks like your server is not offering nfs3. — Danila Ladner, Nov 11 '13 at 19:23
This is just a warning: Don't do it. NFSv3 is ancient and unreliable. You should be using version 4 unless the server is also ancient and doesn't support it (in which case it should be taken out back and shot). — Michael Hampton, Oct 18 '16 at 12:14
nfs is ancient and unreliable? i'll give you the ancient part but unreliable? citation needed! — keithpjolley, Jan 14 '22 at 15:59

score 8 · Answer 1 · answered Nov 11 '13 at 20:12

8

You have misspelled nfsvers=3 and no_root_squash.

answered Nov 11 '13 at 20:12

ramruma

2,740
1
15
8

2

Actually, the misspelling is a very likely cause of this error, though I'd expect some kind of error or warning to be indicated for the invalid options. – Falcon Momot Nov 11 '13 at 20:54
I got that from the CentOs site. Changing it has no positive effecting in fixing the problem. – rahrahruby Nov 11 '13 at 21:21
1

You have missed the final s off nfsvers in nfsvers=3 – ramruma Nov 11 '13 at 21:49
copied from Centos site, doesn't matter though, cause I have posted the real fix above. – rahrahruby Nov 11 '13 at 21:56

score 6 · Answer 2 · answered Oct 18 '16 at 09:25

nfsvers is an option.

<server>:</remote/export> </local/directory> <nfs-type> <options> 0 0

It seems that you missed the nsf-type. Changing nfsmount.conf may solve the problem in a system that will never work with nfs4. I have faced the same problem and it was solved like this in your fstab

172.16.11.87:/volume1/web /home/nas nfs nfsvers=3 0 0

score 3 · Answer 3 · edited Sep 25 '18 at 19:31

3

So that people can get a real answer to the problem, this is how I solved it:

in the /etc/nfsmount.conf:

change Defaultvers=4 to Defaultvers=3

That's it, it now shows up as

nfsstat
Client rpc stats:
calls      retrans    authrefrsh
6          0          6       

Client nfs v3:

edited Sep 25 '18 at 19:31

slm

7,730

answered Nov 11 '13 at 21:32

rahrahruby

587
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nfs mount with nfs 3

3 Answers3