Setting up PXE installation

[dazvoz]

I am trying to set up a PXE installation for CentOS 5.7 64 bit.

I have installed dhcp on the installation server.

I've set up /etc/dhcpd.conf with some fairly generic options, including specifying the filename with the exact path relative to the path given at server_args ie
filename "/pxelinux.0";

I have run service dhcpd start

I have set up a /tftpboot directory including /tftpboot/images/isolinux. This contains vmlinuz and initrd.img and various other files. /the tftpboott directory contains pxelinux.0, mboot.c32 chain.c32, memdisk, menu.c32.

When I boot another machine elsewhere on the network and choose PXE install, I get the message PXE-E53: No Boot Filename Received.

What would be some troubleshooting steps? Can I use another machine on the network to detect whether the dhcp is really working?

Thank you

[dazvoz]

might as well post the dhcpd.conf

ddns-update-style interim;
allow booting;
allow bootp;
option option-128 code 128 = string;
option option-129 code 129 = text;
next-server 192.168.6.240;
filename "pxelinux.0";
subnet 192.168.6.0 netmask 255.255.255.0 {
range 192.168.6.226 192.168.6.229;
option subnet-mask 255.255.255.0;
option broadcast-address 192.168.6.255;

option domain-name "zzzz.com";
option domain-name-servers 165.21.83.88;
}
default-lease-time 21600;
max-lease-time 43200;
option time-offset -18000;




and the tftp file

disable = no
socket_type = dgram
protocol = udp
wait = yes
user = root
server = /usr/sbin/in.tftpd
server_args = -s /tftpboot
per_source = 11
cps = 100 2
flags = IPv4

[sarver123]

Hi,

have a look on the link, might helpful to you,

Quick HOWTO : Ch25 : Network-Based Linux Installation - Linux Home Networking

Chrs,

[dazvoz]

Thank you, Chris. I have been following the Centos HowTo guide exactly.
The DHCPD session is detected straight away when the other machine boots up: it detects the right IP address. Searches for the TFTP session but gets the PXE-E32 TFTP open timeout message.

If there were merely something wrong with my setup in tftpboot, I would expect a message indicating "file not found". /sbin/chkconfig --list" indicates both xinetd and tftp are running on the server.

Some way I can use another (already configured) machine to interrogate the server and maybe Isolate the problem>?