Your current kernel is not supporting your SATA drives; it has been booted to an older kernel. I recommend you check your current kernel for errors. Also, I did not change your grub.conf so when you reboot, it will boot into the bad kernel.
Well I haven't done anything about this yet as I've never modified the grub.conf before, and I don't have experience with kernels so I don't want to break anything. I also want to learn how to sort this stuff out by myself.
So I'm on the old kernel still, basically, what exactly do I need to change in grub.conf to make it boot to this old one?
How do I go about checking the newer kernel for errors?
If it matters:
Intel P4 3.0Ghz
Fedora Core 4