Fedora Core 6 Hibernation

Hello!
I have installed FC6, 64 bit version, on my laptop. Does anyone know about how to activate hibernation (suspend to disk)? I have tried suspend2 and swsusp but my comp simply hang off.
Thanks!

Hi!
I have found a solution by myself: install a suspend2-kernel, mkinit-suspend2, useriu-suspend2 and hibernate-suspend2. What is now still needed are pm-utils (which seems to installed by default, either with one of these packages above or with FC. Then I can run /usr/sbin/pm-hibernate , and everything works very well!
Cheers