I've tryed to do:
sudo gainroot

then the commands:

/usr/sbin/kernel-load /usr/share/kernel-power-settings/ideal
(ok, conky is showing + Mhz)
but, if i try to:
rm -f /etc/default/kernel-power
ln -s /usr/share/kernel-power-settings/ideal /etc/default/kernel-power
/usr/sbin/kernel-load

Then reboot..when i boot up..i have the default config. to 600 Mhz max.
I can't apply those commands as root (yes, i've done whoami, it says root).

I think it's here something really strange

After reflash, i can do all of this.

But, tell me, can anyone do in your phone who have rootsh installed:

sudo gainroot
dpkg -l rootsh

and put here the output?

I might have filesystem corrupted or something strange :S