Cluster nodes cannot be added thanks to LD_ASSUME_KERNEL

Hello everybody,

I have a problem installing a cluster in my work environment:

When I try to add an Ubuntu node(0.98.4) on my debian server(0.98.4), I get an 
error like: "libc.so.6 File not found" when trying to connect to the server 
(e.g. via test settings button) 

The issued command would be:
execflow ssh -o PreferredAuthentications=publickey 
[email protected] "export LD_ASSUME_KERNEL=2.4.30; umask 0002; 
sh -c 'echo --ssh_connect--; echo Ok; 
echo --ssh_connect--;echo --data_base_dir_content--; cd ; echo * | perl -pe 
\"s/ /chr(10)/eg\" | sort;echo --data_base_dir_content--; 
echo --write_test--; echo node write test > /x-file-write-test && echo 
SUCCESS; rm -f /x-file-write-test; echo --write_test--; 
echo --transcode_version--; transcode -v; echo --transcode_version--; '" 
(timeout=5)


If I run that command manually, I get the same error in console, but when I 
omit the "export LD_ASSUME_KERNEL=2.4.30;" part, everything run fine in 
Console.

How do I modify/turn off that export? In settings dialog LD_ASSUME_KERNEL is 
greyed out...


Can anybody help me out?

Regards,

M. D.