DHCP and NFSROOT

[Bert De Vuyst]

Thanks,

This works for me.
One small detail, on my DHCP-server, the option 
next-server "192.168.1.8" didn't work, I had to use
next-server 192.168.1.8

Bert.

On Thursday 29 November 2001 19:39, Chad Walstrom wrote:
> Ah, yes.  I floundered on this for a while.  You can force Linux to look
> for the correct NFS root server at the lilo prompt with the kernel
> parameter "nfsroot".  This is not very practical, since you could easily
> want different clients to go to different servers (as in the BOOTP
> protocol, which DHCP extends).
>
> The answer to your dilemma is in the dhcpd.conf(5) manpage.  What you're
> looking for is the option called "next-server", which is quite
> appropriately named.  It is the "next-server" you want the dhcp client
> to look at for the root directory.
>
> Here's the section from dhcpd.conf(5) that explains the difference
> between "server-name" and "next-server":
>
>        The server-name statement
>
>         server-name "name";
>
>        The server-name statement can be used to inform the client
>        of the name of the server from which it is booting.   Name
>        should be the name that will be provided to the client.
>
> Note: the client is "booting" -- getting its IP address.  Next it will
> look for it's root/boot file.
>
>        The next-server statement
>
>         next-server server-name;
>
>        The next-server statement is  used  to  specify  the  host
>        address  of  the  server  from which the initial boot file
>        (specified in the filename statement)  is  to  be  loaded.
>        Server-name  should  be  a  numeric IP address or a domain
>        name.   If no next-server parameter  applies  to  a  given
>        client, the DHCP server's IP address is used.
>
> So this should work:
>
> 	# FAI Clients
> 	group {
> 		server-name "dhcp.mydomain.tld";
> 		next-server "nfsroot.mydomain.tld";
> 		file-name "/usr/lib/fai/nfsroot"
> 		use-host-decl-names on;
>
> 		# other FAI options...
>
> 		host myhost {
> 			hardware address 00:00:00:00:00:00;
> 			fixed-address myhost.mydomain.tld;
> 		}
> 		#...
> 	}
>
> I hope this helps.