Re: [Sheflug] NFS the hard way

[James Wallbank <nospam [at] lowtech.org>]

Hi All (but particularly Baz),

Argh! Thanks for the advice. It still doesn't work, though! I start 
/etc/rc.d/init.d/portmap start and everything seems to be going fine. 
But then when I /etc/rc.d/init.d/nfs start I get the message:

rpc.mountd Cannot register service: RPC unable to send;
errno = Network is ureachable

I've had to start the network with ifconfig by hand:

ifconfig eth0 192.168.1.100

And I've had to sort out routing to be able to ping my potential client:

route add -net 192.168.1.0 netmask 255.255.255.0 dev eth0

But otherwise I've not messed with the network config at all.

/etc/exports is sorted - that's not a problem. Also, if I boot the 
server in multiuser mode I CAN mount it via NFS - so the client 
config is fine. It's clearly just one element of activating 
networking that I've done wrong or missed out.

Please help! I have a very, very tight deadline on this one, and I'm 
tearing my hair out!

Cheers,

James
=====

>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
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>  >       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]
>
>    "Linux? Is that some kind of MacOS?"
>       -- BT technical support
>
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-- 
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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