Yes, I think that is the problem as well. I think kernel power was not copied from the original N900 using backup menu so probably needs to be (re-)installed or fixed. Haven't got access to the backup N900 right now, so cannot do a uname -r to check.

Last time I used the backup N900 I checked the application manager and I only had the option to un-install kernel power so it appeared to be installed. Didn't check the kernel version then.

Maybe I need to do a re-install.

apt-get install --reinstall -y kernel-power kernel-power-flasher

Will give it a try tomorrow.