Is there any reason I couldn't build the current 2.4.x kernel on my FC2 system for use on a RHL 7.3 box? Both are x86 machines. My understanding is that the kernel is pretty much self-contained. If true, the very different GLibC libraries between systems shouldn't be a problem. My RHL 7.3 machine is very old and slow (just used as a firewall box). Building on my modern FC2 system would be a lot faster. As a side benefit, the FC2 system has a more recent compiler, which might result in better code generation. So... any reason I couldn't do this? Thanks.