[syslinux] Problems booting PXE-Client

Josef Siemes jsiemes at web.de
Mon Feb 3 13:41:16 PST 2003


Hi,

Martin Bammer <martin at cyberlady.arcs.ac.at> schrieb am 03.02.03 16:18:23:
> I have installed DHCP, PXE and the TFTP-Server tftp-hpa. I'm running Debian 
> Woody on my server and I want to boot a PXE-Client with this server. I have 
> installed all as it is described in the docs found on the net.
> 
> Under root:
> /tftpboot/
> /tftpboot/X86PC/linux
> /tftpboot/X86PC/linux/messages
> /tftpboot/X86PC/linux/linux.0
> /tftpboot/X86PC/linux/vmlinuz
> /tftpboot/X86PC/linux/pxelinux.cfg
> /tftpboot/X86PC/linux/pxelinux.cfg/C0A801

Do you also have pxelinux.0 there?

> C0A801 contains:
> LABEL linux
>   KERNEL vmlinuz
>   APPEND root=/dev/nfs nfsroot=192.168.1.1:/home/clients,wsize=8192,rsize=8192
>   IPAPPEND 1

Seems ok, but your client doesn't get there ...
> 
> dhcpd.conf contains:
> ...
> #LocalNet
> subnet 192.168.1.0 netmask 255.255.255.0 {
>   range dynamic-bootp 192.168.1.100 192.168.1.200;
>   option broadcast-address 192.168.1.255;
>   option routers 192.168.1.1;
>   option domain-name "arcsrob.at";
>   option dhcp-class-identifier "PXEClient";
>   option vendor-encapsulated-options ff;
>   option domain-name-servers 193.170.135.160, 193.170.135.161;
> }
> ...
> 
> 
> pxe.conf contains:
> [..]

You should first try to get it to work without a PXE server. The PXE roms are
quite different, and most of them accept dhcp/tftp, some of them refuse
to work with dhcp/pxe/tftp. Oh, and what rom and what network card do you
use? Some of them can't even boot anything, and some want some magic
configurations - see the home page for examples.

> The boot process is as follows:
> Client: DHCP Discover
> Server: DHCP Offer
> Client: DHCP Request
> Server: DHCP ACK
> Client: ARP
> Server: ARP
> Client: UDP bootpc->4011 (PXE - The packet seems to be ok.)
> Server: UDP 4011->bootpc (PXE - The packet seems to be ok.)

Usually some more packets should follow - the pxe server is basically a stripped
down dhcp server, so there seems something missing here.

Regards,

Josef

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