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Re: [K12OSN] dhclient issue?


When the client boots up, and runs dhclient during the /linuxrc
script, it doesn't know anything about dns.  In fact, it doesn't
even have any resolver libraries at that point.  So, when the
root filesystem is mounted via NFS, you cannot use a hostname,
you must use an IP address.

Jim McQuillan
jam Ltsp org

On Thu, 2 Jan 2003, Chris Hobbs wrote:

> I'm attempting to set up my new servers, using round-robin dns (multiple A 
> records for the same name).
> I am using a separate machine to provide DHCP for my entire network, 
> including all LTSP clients.
> I only have one server working now, and have everything working perfectly 
> when dishing out the server's IP address in my dhcp.conf.
> On replacing the server's IP address in dhcp.conf with the RR DNS name 
> (svhsapp.silvervalley.k12.ca.us), the initial boot sequence looks great. The 
> client connects to the tftp server and starts the initial boot. However, on 
> attempting to mount the root filesystem, it complains that it cannot resolve 
> the host name. The name does resolve correctly from other boxes, and in fact 
> I can nfsmount the partition using 
> svhsapp.silvervalley.k12.ca.us:/opt/ltsp/i386.
> The relevant parts of my dhcp.conf look like:
> option domain-name-servers;
> option root-path        "svhsapp.silvervalley.k12.ca.us:/opt/ltsp/i386";
> server-identifier svhsapp.silvervalley.k12.ca.us;
> next-server svhsapp.silvervalley.k12.ca.us;
> It appears that the dhclient that's running at the time that the system 
> tries to mount /root does not know about the DNS server. Again, if I use the 
> server's IP address instead in "option root-path" all works fine, but this 
> doesn't allow me to spread the load out.
> Any ideas?


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