Modifying LiveCD kernel

[d135-1r43]

I've sucessfully installed gentoo using the GTK installer. This wizzard configured my kernel quite well, but now I want to modify some modules. Where is the config file for this generated kernel? How do I build a new kernel from gentoo-sources based on the old configuration?

[nixnut]

Moved from Installing Gentoo to Kernel & Hardware.
Kernel question, so moved here.

I think genkernel --menuconfig all would do the trick (not being a genkernel user myself).
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[Cyberwizzard]

The config can be found in /proc/config.gz, copy this to a directory and run gzip -d config.gz. You will now have the config file, copy this to .config in the /usr/src/linux/.config and you're set.

One minor thing: I have the issue that I don't want to rebuild the genkernel from a difference kernel version (got a thread explaining why) so if you're in the same position you're as stuck as me. On the other hand if you don't care, simply grab the latest gentoo-sources and hop .config in there and fire up genkernel

[d135-1r43]

Ok, thanks. Copying the config went fine.

But what about the modules? The installer wizzard has not add anything to /etc/modules.autoload.d/kernel-2.6. But there are many modules loaded. Where is the config file that specifies which modules will be loaded? Why is /etc/modules.autoload.d/kernel-2.6 empty?

[Cyberwizzard]

Genkernel simply tries to work out which modules have hardware in there (or vice versa ) - so it will auto probe to get all the modules in. I assume that if you add modules after the initram file has been made you can still get them to load by using coldplug. On the other hand if its a module like a disc driver you'd better rebuild genkernel to include the module in the boot image.