On Tue, Nov 30, 2010 at 12:12 PM, Pascal Robert <probert at macti.ca> wrote: >>> [root at hylafax SPECS]# rpmbuild -ba --target x86_64 kernel-2.6.spec You are building as root. This is a bad practice. When building a CentOS custom kernel, please try following the instructions in: http://wiki.centos.org/HowTos/Custom_Kernel Akemi