NFS. Tricks in OVM

http://www.oracle.com/technetwork/server-storage/vm/ovm3-demo-vbox-1680215.pdf

STARTING NFS QUOTAS: CANNOT REGISTER SERVICE: RPC: UNABLE TO RECEIVE; ERRNO = CONNECTION REFUSED

February 17, 2014 · by maazanjum · in Cannot register service, Connection Refused, NFS, OVM, RPC · 20 Comments

While trying to setup NFS on an OVM 3.2 configuration on OEL 5.9, I followed the documentation to the letter but when time came to start the NFS daemon I kept getting the error above.

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[root@ovm /]# service nfs start Starting NFS services: [ OK ] Starting NFS quotas: Cannot register service: RPC: Unable to receive; errno = Connection refused rpc.rquotad: unable to register (RQUOTAPROG, RQUOTAVERS, udp). [FAILED] Starting NFS daemon: [FAILED]

After a little googling, it turns out that RPCBind may not be running.

1 2	[root@ovm /]# rpcinfo -p rpcinfo: can't contact portmapper: RPC: Remote system error - Connection refused

Perhaps I needed to update my NFS Utility packages?

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[root@ovm /]# yum install nfs-utils Loaded plugins: rhnplugin, security This system is not registered with ULN. You can use up2date --register to register. ULN support will be disabled. Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package nfs-utils.x86_64 1:1.0.9-70.el5 set to be updated --> Processing Dependency: initscripts >= 8.45.43 for package: nfs-utils --> Running transaction check ---> Package initscripts.x86_64 0:8.45.44-3.0.1.el5 set to be updated --> Finished Dependency Resolution   Dependencies Resolved   ============================================================================================================================================================= Package Arch Version Repository Size ============================================================================================================================================================= Updating: nfs-utils x86_64 1:1.0.9-70.el5 el5_latest 409 k Updating for dependencies: initscripts x86_64 8.45.44-3.0.1.el5 el5_latest 1.6 M   Transaction Summary ============================================================================================================================================================= Install 0 Package(s) Upgrade 2 Package(s)   Total download size: 2.0 M Is this ok [y/N]: y Downloading Packages: (1/2): nfs-utils-1.0.9-70.el5.x86_64.rpm | 409 kB 00:00 (2/2): initscripts-8.45.44-3.0.1.el5.x86_64.rpm | 1.6 MB 00:01 ------------------------------------------------------------------------------------------------------------------------------------------------------------- Total 598 kB/s | 2.0 MB 00:03 Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Updating : initscripts 1/4 warning: /etc/sysctl.conf created as /etc/sysctl.conf.rpmnew Updating : nfs-utils 2/4 Cleanup : nfs-utils 3/4 Cleanup : initscripts 4/4   Updated: nfs-utils.x86_64 1:1.0.9-70.el5   Dependency Updated: initscripts.x86_64 0:8.45.44-3.0.1.el5   Complete!

Then I tried the RPC info command again, but no luck!

1 2	[root@ovm /]# rpcinfo -p rpcinfo: can't contact portmapper: RPC: Remote system error - Connection refused

Portmap? Oh, that would explain a lot since NFS apparently requires port mapper service to run.

1 2	[root@ovm /]# chkconfig portmap on [root@ovm yum.repos.d]# service portmap start

Try RPC info again. Aha, that did it!

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[root@ovm yum.repos.d]# rpcinfo -p program vers proto port 100000 2 tcp 111 portmapper 100000 2 udp 111 portmapper

Finally, restart the NFS Service and set it to autostart.

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[root@ovm /]# service nfs start Starting NFS services: [ OK ] Starting NFS quotas: [ OK ] Starting NFS daemon: [ OK ] Starting NFS mountd: [ OK ] [root@ovm /]# chkconfig nfs on

Hope this was helpful!

Cheers!