[Sheflug] NFS the hard way

["Barrie Bremner" <nospam [at] barriebremner.com>]

James,

If you haven't done so already, start the portmapper and other
programs like mountd before starting nfsd.

On my Redhat boxen the easy way of doing all this is:

cd /etc/rc.d/init.d/
portmap start
nfs start

Essentially all the scripts do is run /sbin/portmap, /sbin/rpc.nfsd,
/sbin/rpc.mountd and /sbin/exportfs.

Ensure that you are exporting the file system you want to access is
listed in /etc/exports, along with the client machine's IP/name and
permissions (rw/ro) e.g:

/file/system/to/export	client.machine(ro)

The client machine preferably needs to be running portmap - I'm not
entirely sure what happens if server and client aren't running
portmap.
The man pages suggest they default to the standart ports 2049(?) and
111 - but some systems just seem to complain a lot instead :-)

Cheers.

Baz.

James Wallbank writes:
 > Hi All,
 > 
 > How do I activate NFS the hard way - completely by hand?
 > 
 > Why??? Because I need to duplicate one of our servers, and if I boot 
 > it normally then everything goes pear-shaped, because when I mount it 
 > over NFS to copy the disk I can't copy loads of open files and active 
 > executables.
 > 
 > My solution? Boot the server (the machine to be duplicated) in single 
 > user mode so that the h/d has minimal activity. The problem then is 
 > that I need to get NFS up and running. I've used ifconfig to give the 
 > machine a meaningful IP address, netmask etc, and I've used route so 
 > that I can ping the target machine, which is sitting there with an 
 > empty hda1 ready to receive the data.
 > 
 > But, of course, when I try to mount my server's hda1 over nfs from 
 > the target machine, the whole process fails with an RPC port mapper 
 > failure.
 > 
 > Presumably this is because nfsd isn't running on the server (?)
 > 
 > When (on the server) I try...
 > 
 > rpc.nfsd
 > 
 > I get the message "Cannot register service: RPC unable to receive; 
 > errno = Connection refused."
 > 
 > What commands should I use to get nfs active on the server?
 > 
 > Cheers,
 > 
 > James
 > =====
 > 
 > -- 
 > who: James Wallbank
 > org: Redundant Technology Initiative
 > tel: +44 114 2495522
 > fax: +44 114 2495533
 > eml: rti [at] lowtech.org
 > web: www.lowtech.org
 > loc: Access Space
 >       1 Sidney Street
 >       Sheffield
 >       S1 4RG
 >       UK
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 > 
 > 

-- 
Barrie J. Bremner

email: baz at barriebremner.com | OpenPGP ID: 5164F553

http://barriebremner.com/
[Contact information available at website]

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