On Thu, 21 Dec 2006, Karanbir Singh wrote: >>> [1/1] >>> WARNING: >>> /lib/modules/2.6.9-42.28.EL.c4test/kernel/arch/i386/kernel/cpu/cpufreq/powernow-k8.ko >>> needs unknown symbol cpu_online_map >> >> I get the same message during installation. ... > Also, you got an Athlon powernow-k8 message on the CoreDuo laptop ?? Can you > please provide the output from /proc/cpuinfo and dmesg please ( attach it at > a bug report at http://bugs.centos.org/ and let us know the bug no please ) I don't think that cpuinfo and dmesg will help. I think this is error output from depmod. It means that powernow-k8 has been built, but there is no cpu_online_map defined in any other module. A makefile problem, perhaps. Probably harmless (will anything attempt to load powernow-k8 on that hardware?).