I'm very confused on the right step to use to setup a modified kernel in centOS6. As a simple user, I've downloaded the latests sources (I'm runing an old kernel version) : rpm -i http://vault.centos.org/6.7/updates/Source/SPackages/kernel-2.6.32-573.22.1.el6.src.rpm in the spec file ~/rpmbuild/SPECS/kernel.spec I've set: %define buildid .numa Now I want to set *CONFIG_NUMA_EMU=y* before runing: rpmbuild -bb --without xen --without debug --without debuginfo --target=x86_64 ./SPECS/kernel.spec But where shoud I set this CONFIG_NUMA_EMU option ? I've tested several config files where this options was specified (using grep as a last solution) but each build reset my choice and it is not available in the final kernel. And google is a little bit confusing for me with many and many diverging informations. Thank to kernel gourous for their advices. Patrick -- =================================================================== | Equipe M.O.S.T. | | | Patrick BEGOU | mailto:Patrick.Begou at grenoble-inp.fr | | LEGI | | | BP 53 X | Tel 04 76 82 51 35 | | 38041 GRENOBLE CEDEX | Fax 04 76 82 52 71 | ===================================================================