Create custom boot image for cobbler pxe boot

[mad at vorsicht-bissig.de]

Hi!

I have a desktop PC I want to install with cobbler (Fedora Core 5) via network. The problem is, that the e1000 network card is to new for the pxeboot kernel from the FC5 CD. 

The cobbler boot runs without problems until it wants to download the kickstart file from the cobbler server. The error message is, that it can't find a network device.

I already compiled a new e1000 module on an installed FC5 PC. The module works fine. Now how can I use the new module? 

I tried to update the initrd.img from my /tftpboot directory and that worked like described in  

http://www.sharktooth.de/doku.php/linux:fedora:fc5_e1000_hack

But this is a very dirty hack (in my opinion). Is there a 'right way' to create a new vmlinuz and initrd.img on the already installed PC that I can use for tftpboot?

Or is there another possibilty to use the new e1000 module?

Thanks in advance
mad