Re: ip=dhcp problem...

[Martin Josefsson <gandalf@wlug.westbo.se>]

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On Sat, 2004-12-18 at 11:15, Charles-Henri Collin wrote:
> Hi,
> 
> I've got the following problem with linux 2.6.8.1:
> I'm nfs-rooting a diskless client with kernel parameter ip=dhcp.
> My dhcpd.conf  has a "option domain-name-servers X.X.X.X;" statement and 
> "get-lease-hostnames true;"
> Now when the diskless clients boot, no name-server configured and they 
> cant resolv.
> dmesg gives me, for instance:
> 
> IP Config: Complete:
>     device=eth0, addr=192.168.0.237, mask=255.255.255.0, gw=192.168.0.1,
>     host=clientFSB-237.fsb.net, domain=fsb.net, nis-domain=FSBnis,
>     boot-server=192.168.0.254, rootserver=92.168.0.254, rootpath=
> 
> So as you can see, everything is almost set up, except a nameserver!
> Has anyone heard about that problem before? Are there any fixes?

The fix is to make sure you have a nameserver in your /etc/resolv.conf
The kernel has no idea how to resolve names into addresses. That's a
userspace thing. I'm not sure if you can extract the dhcp info from the
kernel after the boot, otherwise you'll just have to run a userspace
dhcp client, I use dhclient.

-- 
/Martin

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