Re: Error mount NFS -- nfs4_get_rootfh

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On Wed, 2012-01-04 at 13:21 -0800, Geoffrey Leach wrote:
> On 01/02/2012 04:02:55 PM, Ed Greshko wrote:

> >> ** On server....
> > 
> > systemctl is-enabled nfs-lock.service
> > systemctl is-enabled nfs-server.service
> > systemctl is-enabled nfs-idmap.service
> 
> nfs-idmap.service         loaded active   running       NFSv4 ID-name 
> mapping daemon
> nfs-lock.service          loaded active   running       NFS file 
> locking service.
> nfs-server.service        loaded active   running       NFS Server
> 
> Firewall disabled.  Shhh - don't tell anybody.
> 
> > Also, make sure Port 2049 is open on the firewall
> 
> on client, disabled. Verified.
> 
> > ** On client
> > 
> > systemctl is-enabled nfs-idmap.service
> > systemctl is-enabled nfs-lock.service
> 
> Verified
> 
> > Then go on to configure the shares....
> > 
> > ** Server....
> > 
> > mkdir -m 1777 /nfs4exports
> > cd /nfs4exports
> > mkdir -m 1777 home
> > mount --bind /home home
> 
> drwxrwxrwt  5 root root 4096 Dec 31 15:34 /nfs4exports/
> drwxrwxrwt. 6 root root 4096 May 18  2011 /nfs4exports/home/
> drwxrwxrwt  2 root root 4096 Dec 31 15:34 /nfs4exports/tmp/
> drwxrwxrwt  2 root root 4096 Dec 27 16:20 /nfs4exports/usrlocal/
> root@mtranch[14]->umount /nfs4exports/tmp/ /nfs4exports/usrlocal/
> umount: /nfs4exports/tmp/: not mounted
> umount: /nfs4exports/usrlocal/: not mounted
> 
> > To make the bind effective a boot time edit /etc/fstab to contain
> > 
> > /home               /nfs4exports/home   none    rw,bind 0 0
> 
> #tail /etc/fstab 
> /home           /nfs4exports/home       none    rw,bind 0   0 
> 
> > vi /etc/idmapd.conf      (Modify "Domain" line, making sure to remove
> > leading #)
> 
> # The default is the host's DNS domain name.
> Domain = mtranch.mtranch.com
> 
> This should be just mtranch.com, yes?
----
yes, 'Domain = mtranch.com'
----
> 
> > vi /etc/exports    (Added 2 lines)
> > 
> > /nfs4exports       
> > 192.168.0.0/24(ro,sync,insecure,root_squash,no_subtree_check,fsid=0)
> > /nfs4exports/home  
> > 192.168.0.0/24(rw,nohide,sync,insecure,root_squash,no_subtree_check)
> 
> #cat /etc/exports
> /nfs4exports        192.168.0.0/24
> (ro,sync,insecure,root_squash,no_subtree_check,fsid=0) 
> /nfs4exports/home   192.168.0.0/24
> (rw,nohide,sync,insecure,root_squash,no_subtree_check) 
> 
> > exportfs -rv
> 
> #exportfs -rv
> exporting 192.168.0.0/24:/nfs4exports/home
> exporting 192.168.0.0/24:/nfs4exports
> 
> > 
> > ** Client....
> > 
> > mkdir /mtranch-home
> 
> Verified
> 
> > Then just mount....
> 
> Connection refused, as before
> 
> No actual output from the client, as I'm reduced to sneakernet at this 
> point.
----
but we didn't see the command nor the result...

mkdir /mtranch-home # I think this you did
mount -t nfs4 $SERVER:/home /mtranch-home

Obviously for the $SERVER, you should substitute either the IP_Address
of your NFS4 server (or the FQDN/Hostname of your NFS Server IF you can
ping it from the NFS client by the same name).

Any time you change /etc/idmapd.conf you should restart idmapd.service
(client or server)...
systemctl restart nfs-idmap.service

Craig


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