kernel settings
 

I want to recompile my kernel, tweaking things here and there. Is there a way to check my current settings? I don't want to mess with anything that's already working, and it would take forever for me to guess some of the current settings. (Like "caching block device access to MTD devices").

There should be a file called "config" (or something with a similar name) in your /boot directory. It's the configuration file. Copy it to your source and you can use it. Remember that its' format is changing from version to version (new options etc), so it works only with similar one.

read kernel howto

the file is called .config (dot infront) and with rh72+ they put it in /boot partition so you can check it out and change it and recompile, if your source is available

btw in rh73 its called
/boot/config-2.4.18-4

make oldconfig in /usr/src/linux directory. Then make menuconfig and your current settings should be set.
-NSKL

Or if you install kernel source from your distro's package, when you first run (x or menu)config it will have the default settings, so all you will have to alter is whatever it is you are going to build in or out of your kernel.