Updating kernel headers /usr/include/linux
Is it necessary to upgrade the kernel headers (/usr/include/linux) when going from the 2.4 kernel to the 2.6? Silly me tried to remove the kernel-header-2.4 package (figured it was safe since I'm using 18.104.22.168), and, you guessed it, I couldn't compile the kernel/modules anymore.
I reinstalled the package and everything is fine, but I just can't remember ever having to manually upgrade the headers from my past experience (ok, I've been away a couple years -- maybe things changed, or I just forgot).
If I have to upgrade what is the best way to go about it?