PXE Boot: “Failed to load ldlinux.c32”

Question

I'm trying to create a PXE server on my raspberry pi, but if I try to boot, the client shows the Error "Failed to load ldlinux.c32". This is my folder structure of the tftp folder:

Here is my pxelinux.cfg configuration:

DEFAULT vesamenu.c32
PROMPT 0
TIMEOUT 300
MENU TITLE PXE Network Boot Menu
LABEL local
MENU LABEL BOOT FROM LOCAL DISK
MENU DEFAULT
LOCALBOOT 0
LABEL memtest
MENU LABEL memtest86+ v4.20
KERNEL memtest

And this is my DHCP configuration:

subnet 10.0.0.0 netmask 255.255.252.0 {
option ntp-servers de.pool.ntp.org;
option domain-name ".pudding.net";
option domain-name-servers 10.0.0.5;
option broadcast-address 10.0.3.255;
option subnet-mask 255.255.252.0;
option routers 10.0.0.1;
allow client-updates;
allow unknown-clients;
max-lease-time 1814400;
default-lease-time 604800;
range 10.0.0.100 10.0.0.200;
filename "/pxelinux.0";
next-server 10.0.0.5;
}

I configured it like this tutorial: Tutorial

It doesn't worked for me, with the same error, because of this I copied the structure from a friend, it doesn't worked with the same error. But it works for him.

Has anyone an idea, how to fix this problem? I don't know very well about syslinux and I would be happy if anyone can help me!

Answer 1

For me it was my Openwrt router (18.06.1) that I use to point to the real tftpserver.

This config that works in Openwrt (19.07.2) didn't work in an other environment and resulted in the ldlinux.c32 error.

tftp-root=/tftpboot
dhcp-boot=pxelinux.0,pxeserver,x.x.x.x

After a lot of googling I finally found http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2014q3/008767.html and by adding this piece of code to dnsmasq.conf things started to work.

dhcp-userclass=set:ipxe-boot,iPXE
dhcp-vendorclass=set:pxe,PXECLient
pxe-service=x86PC,"Boot via PXE", pxelinux.0, x.x.x.x

I think there must be something similar with your setup....

Hope it helps you, or someone else !