recompiling the kernel-SLACKWARE
 

I'm using Slackware 10.0 (kernel 2.4.26) and I want to use a platform which is designed for kernel 2.4.20.
It is previous kernel version. Shall I download the appropriate kernel and recompile it? What should I do?

Yes, download the 2.4.20 sources and compile kernel, I don't see why it could cause problems, you may need to downgrade your gcc package as well though.

You may want to double check at the mirrors but i think that 9.0 had that kernel. If so you could just install 9.0.

I thought that I couldn't compile a previous kernel version (2.4.20) while having 2.4.26. Doesn't any newer version have all the features of the oldest versions? Which is the reason to go "back" to previous versions?

Please ellaborate what you realy want, which feature etc.. The more precise you will be, the more chance you will get what you want.

I'm sorry but I'm little confused. If I compile the source of 2.4.20 kernel which I have downloaded, while I'm using now 2.4.26, then after that my kernel version will be 2.4.20?

You can compile and install 2.4.20 and then run that kernel. It doesn't matter what kernel you are currently running. I am not going to instruct you on how to do that as there is a sticky thread that contains all the needed info.