network installation ( dhcp problem)

[Alok Pandey]

hi Rick
 Thanks for your time :
 Plz find the details just below to your reply..



Rick Stevens wrote:
> On Fri, 2007-03-23 at 12:55 +0530, Alok Pandey wrote:
>   
>> Hi  linux Gurus,
>> I am trying to configure a network installation server on CentOS(2.6.9).
>>     
>
> No, it's CentOS 4.something.  The kernel is 2.6.9-something.  Please be
> clear... there are major differences between the different CentOS
> versions.
>
>   
Server : Centos 4.3 final kernel (2.6.9-34.El)
CLient : Centos 4.3 final       kernel (2.6.-34.el)
>> The point where i stucked  is .
>>     The client is not able to find my dhcp server. 
>> The steps which i have taken is:
>> 1) copy all the 4 cd disk to /data/network-install/x86/CentOs/RPM
>> 2) copy all the 4 cd image to /data/network-install/x86/CentOs/ISO
>> 3)configured NFS as (in  /etc/exportfs)
>>      /data/network    *(ro,sync)
>> 4)configured ftp as
>>     anon_root=/data/network-install/x86/CentOs/RPM
>> 5) Configured dhcp server by putting mac address ,hostname and ip.
>>     
>
> Are you sure you started the DHCP daemon, dhcpd?
>   
Yes: i have restarted  the dhcpd service.
>> Now  after booting the client with CentOs 1st cd and choosing te option :-
>> 1) Lan Boot
>>     results: perfect  (i.e it get the ip same  address as mentioned in Dhcp)
>> 2) linux askmethod
>>     a) Dynamic Ip by dhcp
>>         results:- fail  with error
>>         Pump Told us : no dhcp reply recived.
>>     
>
> Hell, the installer still uses pump?  Jeeze!
>   
What do mean by 'still uses pump' ??
>   
>>     b) static ip
>>     results:- proceed , but failed to mount the nfs share and anonymous 
>> dir  shared by the server.
>>     
>
> This sounds like a firewall issue to me.  Get on the server and verify
> that you've opened the firewall for NFS and DHCP.
>
>   
Yes : their  is no firewall  on the server .(i.e iptable is stoped)
>> Hope the above Information will clear my situation .
>> I am not getting any way around, can any one show me a light.
>> Any suggestion is welcome.
>>
>> One thing i will like to mention here is that after installation , 
>> client find my dhcp successfully . and also
>>     
>
> And also....what?
>
> It's odd that after installation dhclient finds the dhcp server, but
> not before.  Again, this could be a firewall issue and you're not
> actually using DHCP but a fixed IP.  
>   
I know is odd but its happening . and i am getting the pump error when 
ever  i used the dhcp option at installation time.
Firewall is off on server .
Dhcp server is configured as,
  ip range  50-100 is reserved for laptop(i.e they always get different 
ip  when plugged) and rest machines are hardcore  with their mac address.

Can you  suggest me were do i look for the fault.
> ----------------------------------------------------------------------
> - Rick Stevens, Principal Engineer             rstevens at internap.com -
> - VitalStream, Inc.                       http://www.vitalstream.com -
> -                                                                    -
> -     Try to look unimportant.  The bad guys may be low on ammo.     -
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