ClearFoundation

from granola site:

Do you have the cpufreq modules installed? The Granola init scripts do attempt to load any needed kernel modules.

* You need a cpufreq driver, like one of the following:
o powernow_k8 powernow_k7 powernow_k6
o speedstep_centrino speedstep-ich speedstep-smi
o acpi_cpufreq
* Additionally, you need the cpufreq_userspace module for userspace control of DVFS modes.


So probably the module wasn't made and/or the acpi_cpufreq wasnt enabled in cpu build. ( some people disable this for servers. )

I do not know Tim Burgess still reads this. Otherwise you'll need to build a new kernel version yourself. ( Is not that hard )

some helpful links
http://fedoraproject.org/wiki/Docs/CustomKernel
http://www.howtoforge.com/kernel_compilation_fedora

Hi jim,

Please confirm that you are using Tim's latest kernel, what is reported in this thread:
Howto Upgrade your Kernel (unofficial)

Greetings,

John

Hi Jim, they both exist on my system here running 2.6.31-12-174, and enabled for 2.6.32-11



I can confirm that the cpufreq module is also enabled in the module config, no need to recompile. As suggested above you may need to load the correct module for your CPU...i'm using p4clockmod, combined with the cpuspeed service to throttle

Do the following to load the module for your CPU

Tim, John, Prodigit,

thank you all so much. it works like a charm now.

[root@system][~] $ modprobe powernow-k8
[root@system][~] $ /etc/init.d/granola start
Starting Granola: [ OK ]


and then to autoload it at boot, i followed this:

purpleblog.wordpress.com/2008/06/25/centos-modules-autoload/

easy

thanks again.

Just upgraded to tims latest kernel, holy hell its like a totally different server and disk i/o is wayyyyy down

Tim,

Just installed your kernel, seems nice and stable here, no issues seen so far. By the way, it seems to reduce my average processor load from about 30 to about 5! Is that typical? Better I/O performance or something?

Thanks,
Drew

Sorry Herballizard I missed your reply - thanks for the feedback!

Hi Drew, thanks for the feedback too! there have been a lot of improvements regarding i/o and a new CPU scheduler so hopefully things should be ticking along a bit more smoothly now. Certinaly when my system is idle it will show load of near 0.... My system is much more responsive with the newer kernels (2.6.32+)

Tim (or others),

I just watched the boot process in more detail. No show stoppers, but I did see the warning

"DM Multipath kernel driver version too old"

Is this significant, and what does it mean? I do run RAID 5 (on 4 SATA drives), if that is significant.

Thanks!

Hi Drew, I get the same message here - it's to do with the older version of device-mapper-multipath RPM supplied with ClearOS, the kernel requires a newer version of this driver. It doesn't affect normal software or hardware raid's. Unless you have configured multipath I/O it shouldn't cause any problems

for more info here
www.redhat.com/docs/manuals/csgfs/browse...h/MPIO_Overview.html

Thanks Tim!