Hi all, Althought I read quite a lot of docs, and googled for a while I'm still puzzled. I have several server w/ onboard "Promise Technology, Inc.|PDC20276 IDE" from NEC. I see you can set in the BIOS to use this as ATA, or RAID. I interpret that when set as ATA I should be able to reach single disks while whe set as RAID, I should only see the array set from BIOS, correct? I also thought that pdc202xx_new should be my module, and in fact it loads correctly, and I see in the syslog: Jun 28 22:05:37 argo-cd kernel: PDC20276: IDE controller at PCI slot 02:0c.0 Jun 28 22:05:37 argo-cd kernel: PDC20276: chipset revision 1 Jun 28 22:05:37 argo-cd kernel: PDC20276: not 100%% native mode: will probe irqs later Jun 28 22:05:37 argo-cd kernel: ide2: BM-DMA at 0xa800-0xa807, BIOS settings: hde:pio, hdf:pio Jun 28 22:05:37 argo-cd kernel: ide3: BM-DMA at 0xa808-0xa80f, BIOS settings: hdg:pio, hdh:pio and from here it seems I should see /dev/hde /dev/hdf /dev/hdg /dev/hdh What does "will probe irqs later" means? but how can I fdisk them? I use devfs and no devices appear, I could create devices bus how should I create them? (I already added all devices /dev/ataraid/*, thought they are not used here) If I now try to unload the module, it says: root@argo-cd root # modprobe -r pdc202xx_new pdc202xx_new: Device or resource busy What is it doing? If I modprobe ataraid it just work but: root@argo-cd root # modprobe pdcraid /lib/modules/2.4.21-p3/kernel/drivers/ide/raid/pdcraid.o: init_module: No such device Hint: insmod errors can be caused by incorrect module parameters, including invalid IO or IRQ parameters /lib/modules/2.4.21-p3/kernel/drivers/ide/raid/pdcraid.o: insmod /lib/modules/2.4.21-p3/kernel/drivers/ide/raid/pdcraid.o failed /lib/modules/2.4.21-p3/kernel/drivers/ide/raid/pdcraid.o: insmod pdcraid failed I don't really understand when I need ataraid/pdraid. Should I need them if I want to use md-tools linux RAID1 or (as I suspect) I only need it if I want to use hardware raid? NOTE: it fails in both cases: ATA or RAID1 settings. Thanks in advance! sandro *:-) -- Sandro Dentella *:-) e-mail: sandro.dentella@xxxxxx http://www.tksql.org TkSQL Home page - My GPL work