The sata.i kernel really did it. The hard drive was recognized as /dev/sda. My error was that I had been trying to see the hard drive as hda, for so far I have only installed Slackware on IDE hard drives. Thank you very much indeed for your help. I just have the following question: What is the difference between tha scsi.i and sata.i kernel, since they both support sata drives. And then, is there a sata kernel that supports ACPI? I want to enable power off at system shutdown. Currently with the IDE systems I use the bareacpi.i kernel. Is there an analogous sata kernel with ACPI support enabled?
Thank you in advance