[CentOS] Can not modprobe acpi-cpufreq.ko in CentOS 5.2

Sun Aug 2 11:01:05 UTC 2009
Vaclav Mocek <little.owl at email.cz>

Ian jonhson wrote:
> Dear all,
>
>
> The cpufreq modules have been distributed in Centos. But recently,
> I met a problem when I tried to test the power-related applications.
> The module can not be modprobed in kernel notwithstanding releated
> with Centos distribution.
>
> The messgae thrown out is:
>
> -------------  dump of screen ------------
>
> # modprobe p4-clockmod.ko
> FATAL: Module p4_clockmod.ko not found
>   
You have to write:

# modprobe p4-clockmod

It means no "ko" extension.

> --------------------------------------------------
>
> However, the module is there. If I search the kernel path:
>
> ------------------  dump of screen ----------------------
>
> # ls /lib/modules/`uname -r`/kernel/arch/*/kernel/cpu/cpufreq
> acpi-cpufreq.ko
>
> # find /lib/modules/  -name "*cpufreq*"
> /lib/modules/2.6.18-92.el5/kernel/drivers/cpufreq
> /lib/modules/2.6.18-92.el5/kernel/drivers/cpufreq/cpufreq_powersave.ko
> /lib/modules/2.6.18-92.el5/kernel/drivers/cpufreq/cpufreq_ondemand.ko
> /lib/modules/2.6.18-92.el5/kernel/drivers/cpufreq/cpufreq_conservative.ko
> /lib/modules/2.6.18-92.el5/kernel/drivers/cpufreq/cpufreq_stats.ko
> /lib/modules/2.6.18-92.el5/kernel/arch/x86_64/kernel/cpufreq
> /lib/modules/2.6.18-92.el5/kernel/arch/x86_64/kernel/cpufreq/acpi-cpufreq.ko
> /lib/modules/2.6.29.3/kernel/drivers/cpufreq
> /lib/modules/2.6.29.3/kernel/drivers/cpufreq/cpufreq_powersave.ko
> /lib/modules/2.6.29.3/kernel/drivers/cpufreq/cpufreq_ondemand.ko
> /lib/modules/2.6.29.3/kernel/drivers/cpufreq/cpufreq_conservative.ko
> /lib/modules/2.6.29.3/kernel/drivers/cpufreq/cpufreq_stats.ko
> /lib/modules/2.6.29.3/kernel/arch/x86/kernel/cpu/cpufreq
> /lib/modules/2.6.29.3/kernel/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.ko
>
> # cat /etc/issue
> CentOS release 5.2 (Final)
> Kernel \r on an \m
>
> # uname -a
> Linux hdt0.mycompany.com 2.6.29.3 #1 SMP Thu May 28 13:34:23 CST 2009
> x86_64 x86_64 x86_64 GNU/Linux
>
> ------------------------------------------------------------------
>
> I have googled the internet for a long time, but not got any solution.
>
> Could anybody given me some help?
>
>
> Thanks,
>
> Ian
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