LTSP falling back to initramfs

[Wolfgang Bogenrieder]

Hi,

I have some serious problems in thin clients coming up.

I have an AMD64 dual core server and first made an amd64 installation of 
edubuntu, but clients are i386 as usual.
On boot up the client was trying to start the loaded 64bit kernel 
(generated through setup installation and configuring, why 64bit client 
kernel as default ??) and fails, but no change on installed edubuntu to 
do an update client kernel to i386 arch.

Therefor I did a new clean i386 installation on server. Now client is 
loading and starting the kernel entering desktop session initialization 
with this fancy orange moving startup screen. However, after a few 
seconds this procedure fails and client falls back to initramfs, 
clearing screen and wiping all debug messages possibly coming up before.

Any chance to debug this ? Which scripts are processed during session 
initializing ? Can I put some echoes to the scripts with output on 
server (I can, but how) ? Worth to listen with wireshark to 
client-server communication ? Any known bug to this issue (I found a 
possible bug, #156229 ltsp_config, but descriped in gutsy release, tried 
eliminating it, but failed too) ?

Please, if you have an good, efficient idea to solve this, tell me and 
don't tell me fool, I lost sufficient live time.

Greetings, Felix

Thanks for help !!