Hello, I had installed FC4 on a x386 machine. After installation finished (including all stages), I tried to reboot it . I get the following messages: SELinux: Unregistering netfilter hooks and it hangs. Since it is a dual machine I can see that in /var/log/messages it says that it sends signal 15. I googled for it and I saw a suggestion to add: noapic and noapci in grub.conf (in the kernel line). I tried it and it did not work: I got the same result : it still hangs after displaying: "SELinux: Unregistering netfilter hooks". Any idea ? (BTW, I had configured SELinux to be disabled , and I don't understand why at all there is registering/unregistering of netfilter hooks.) Regards Mark