Hi,
Here'a a question - is it possible to compile a single module (distributed in the kernel source tree) for the current CentOS kernel (2.6.9-5.0.5) without recompiling the entire kernel and all other modules.
I basically need reiserfs3 (nb. why is it disabled? it's a module, you use it, it doesn't wreck anything...) and I don't really want to change the rest of the kernel, and I'd like to have the minimum amount of fuss on future kernel upgrades.
Now I know external modules can be compiled without recompiling the kernel - question is how to do it for an internal kernel module.
What I've tried:
I've installed the kernel source code, copied over the kernel settings (the entire /usr/src/kernels/2.6.... dir) onto it. run make menuconfig and selected modular reiserfs. A diff of the new and old configs shows only reiser module (and suboptions for selinux) has been enabled. So no other changes have been made.
Now a make fs/reiserfs/ almost works, but it borks on some sort of .tmp_versions/reiserfs.mod problem (file not present). The resultant reiserfs.o doesn't work as reiserfs.ko (not sure if it should, though).. I can't run make modules_install without first compiling all the other modules... Should I just grep through the .config file and replace all (except reiser) =m with =n's (and rerun make oldconfig to make sure it's still consistent)? And then run make modules modules_install?
Any ideas? Basically all I want is reiserfs3 for the current CentOS4 kernel...
Cheers, MaZe.