[syslinux] PXE + memdisk booting problems

[reg at krautmann.net]

Sorry for makeing a new post, but I already erased my old mails.

In the following I describe my Server-Situation (Sorry for my bad english)

* I have a eisfair server http://www.eisfair.org with version 1.6.1 (newest)

* I have a ISC-DHCPD 3 Server running

* I have a TFTP Server running
http://www.kernel.org/pub/software/network/tftp/

* I have Samba installed and a DNS Server is running

My dhcpd.conf looks like the following:

PXE relevant things:

DHCPD_PXE_3_NAME        =        test
DHCPD_PXE_3_ACTIVE      =        yes
DHCPD_PXE_3_KERNEL      =        unattended/memdisk
DHCPD_PXE_3_INITRD      =
DHCPD_PXE_3_ROOT        =
DHCPD_PXE_3_APPEND      =        initrd=unattended/undis3c.imz


The file "Default" (I think it is the syslinux.cfg file) looks like  
the following:

#
# Do not edit this file, edit /etc/config.d/dhcpd
# Creation date: Fri Jul 31 21:24:53 CEST 2009

DEFAULT test
PROMPT 1
TIMEOUT 150
DISPLAY pxelinux.cfg/boot.msg
F1 pxelinux.cfg/boot.msg

LABEL test
KERNEL unattended/memdisk
APPEND   initrd=unattended/undis3c.imz raw



Always when I boot my client (it already worked with this client !!!!!  
one year ago to last week till I updated my eisfair-server and my  
unattended.sourceforge packet to 4.8)

I get the following messages:

Loading unattended/memdisk...........OK
Loading unattended/undis3c.imz.......OK
Ready................................OK

and then nothing happens...it hangs.

I even tried all memdisk version from 3.71 (which was working one year  
ago) to 3.82

the result is, that the older memdisk version show the message I  
described already, and the newer ones are forcing my computer to reboot.

I hope that somebody could help me, because I am troubleshooting since  
one week already and have always the same problem

Thanks in Advance

Bernd (Best regards vom Germany)