I've had some problems with wireless drivers with lenny and so decided to install the 2.6.30 kernel (squeeze) which solved the problem in one quick fix. THis was the first time I've every done anyting with the linux kernel, normally being content and having no problems with the original kernel supplied with whatever distro I'm using.
I was really surprised that I could simply install the squeeze kernel, reboot and everything worked just fine. How come??
It might be a rather complicated answear but I'd like to have an idea why you can do this so easily.
There's nothing strange in that.
All the linux distributions use exactly the same kernel, besides some -usually minor- distro specific patches.