strange nfs problem, need nfs guru

[Gene Heskett]

On Thursday 21 August 2014 17:19:05 Tom H did opine
And Gene did reply:
> On Thu, Aug 21, 2014 at 2:53 PM, Gene Heskett <gheskett at wdtv.com> wrote:
> > On Thursday 21 August 2014 14:02:45 Tom H did opine
> > 
> > And Gene did reply:
> >> On Thu, Aug 21, 2014 at 10:26 AM, Gene Heskett <gheskett at wdtv.com>
> > 
> > wrote:
> >>> On Thursday 21 August 2014 07:22:44 Nils Kassube did opine
> >> 
> >> On 192.168.71.3:
> >> 
> >> 
> >> cat /proc/fs/nfsd/versions
> > 
> > gene at coyote:/net$ sudo cat /proc/fs/nfsd/versions
> > [sudo] password for gene:
> > +2 +3 +4 +4.1 -4.2
> 
> You've got nfsd running with all the right versions.
> 
> >> rpcinfo -p
> > 
> > gene at coyote:/net$ sudo rcpinfo -p
> > sudo: rcpinfo: command not found
> > 
> > locate returns empty, not found IOW.
> > 
> > gene at coyote:/net$ sudo synaptic
> > 
> > And synaptic can't find it either.
> 
> Sorry. It's rpcinfo. I forgot that you're using 10.04. It'll work if
> you have libc installed (or rpcbind but I doubt that you have that
> installed on 10.04!). Or you can use pmap_dump to get the same output.
> 
Obviously I failed spelling. :( Corrected, all 3 machine list nfs as using 
3 instances of udp and 3 instances of tcp, all on port 10003.

> >> showmount -e
> > 
> > gene at coyote:/net$ showmount -e
> > Export list for coyote:
> > /home/gene shop.coyote.den,lathe.coyote.den
> 
> Your exports are shared.
> 
> >> On lathe and/or shop:
> >> 
> >> 
> >> rpcinfo -p 192.168.71.3
> > 
> > Recommends install of rpcbind from universe, or libc-bin from main.
> > 
> > "lathe" reports rcpbind as not available, and that libc-bin is the
> > latest version.  But rcpbind is not locatable, nor is rcpinfo.
> 
> As above, you'll have to install libc-bin because portmap's pmap_dump
> only works locally.
> 
> >> showmount -e 192.168.71.3
> > 
> > For lathe:
> > ene at lathe:~/linuxcnc/configs/my_LinuxCNC_machine2$ showmount -e
> > 192.168.71.3
> > Export list for 192.168.71.3:
> > /home/gene shop.coyote.den,lathe.coyote.den
> > 
> > For shop:
> > gene at shop:~$ showmount -e 192.168.71.3
> > Export list for 192.168.71.3:
> > /home/gene shop.coyote.den,lathe.coyote.den
> 
> You're seeing the coyote shares.
> 
> You don't need rpcinfo if showmount's giving you this output.
> 
> >> mount -v -t nfs -o nfsvers=3 192.168.71.3:/home/gene
> >> somewhere-other-than-/net-since-youre-using-autofs
> > 
> > This one worked!
> 
> OK.
> 
> >> mount -v -t nfs -o nfsvers=4 192.168.71.3:/home/gene
> >> somewhere-other-than-/net-since-youre-using-autofs
> > 
> > On lathe:
> > ene at lathe:~/linuxcnc/configs/my_LinuxCNC_machine2$ sudo mount -v -t
> > nfs -o nfsvers=4 192.168.71.3:/home/gene /mnt/gene
> > mount.nfs: timeout set for Thu Aug 21 14:43:24 2014
> > mount.nfs: text-based options: 'nfsvers=4,addr=192.168.71.3'
> > mount.nfs: mount(2): Invalid argument
> > mount.nfs: an incorrect mount option was specified
> > 
> > nfsvers=3 works, but nfsvers=4 doesn't ???
> > 
> > I did the ip4address.0/24 in my exports now, works on both machines
> > IF I spec nsfvers3
> > 
> > I take it that I cannot use /net if using autofs?
> > 
> > Better yet, why does nfsvers4 fail?  I'll go look at my xconfig
> > again.
> 
> There's no need to change your kernel config, it's fine.
> 
> You can use "/net" but it's confusing on a list like this one because
> it's used for autofs.
> 
> I haven't used 10.04 in a while but IIRC nfsv4 wasn't what it is now:
> 
> - "-t nfs -o nfsvers=4" and "-t nfs -o vers=4" weren't yet available
> so you have to use "-t nfs4" (which still works but has been
> deprecated)
> 
> - you have to add "fsid=0" (or "fsid=root") to "/etc/exports" and you
> have to use "mount -v -t nfs4 192.168.71.3:/ /path/to/dir" to mount
> the "/home/gene" export (but you still have to use "mount -v -t nfs
> 192.168.71.3:/home/gene /path/to/dir" for nfsv3).

I'll see if I can decode that and make it work in the morning.  I've been 
doing some badly needed yard work and am about ~30~ for the day now in 
terms of thinking clearly.  Right now a nearly 80 year collection of aches 
& pains is clamoring for my attention. :)

One more question, would this work if I changed the nfs spec in the fstab 
file for nfs4?

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS