Enable acpi in 2.4.x? It seems to be on the kernel!

[Joao Clemente <jpcl@rnl.ist.utl.pt>]

I just installed my Asus L3C laptop from sarge rc2 business-cd installer.

I was going to check for apm/acpi support and by looking at 
/boot/config-2.4.27-1-686 file it seems to be already compiled in the 
kernel.... so...  do I need to use "acpi=on" on something like that in 
grub for acpi to work?
I have no /proc/acpi, so the kernel seems not to be loading the acpi stuff.

Joao Clemente