Iím running RdHat 9 and I have a mylex DAC960PD-3 (3 channels) on which Iíd like to setup a hardware raid setup. The installation is complete; Iíve built the raid with the daccf utility, Iíve initialized the disks but I canít make a partition.

I logged in as root, try both fdisk and parted on both /dev/rd/c0d0 and /dev/ida/c0d0 but the system always answer: Unable to open /dev/rd/c0d0.

However the kernel is compiled with the dac960.o module and the system seems to recognize the mylex as shown in the dmesg below. The problem seems to be with the 3 ďrd/c0dx: unknown partition tableĒ lines

Here is the interesting part of my DMESG

DAC960: ***** DAC960 RAID Driver Version 2.4.11 of 11 October 2001 *****
DAC960: Copyright 1998-2001 by Leonard N. Zubkoff <lnz@dandelion.com>
DAC960#0: Configuring Mylex DAC960PD PCI RAID Controller
DAC960#0: Firmware Version: 2.73-0-00, Channels: 3, Memory Size: 32MB
DAC960#0: PCI Bus: 0, Device: 13, Function: 0, I/O Address: 0xE800
DAC960#0: PCI Address: 0xD6002000 mapped at 0xE090D000, IRQ Channel: 11
DAC960#0: Controller Queue Depth: 64, Maximum Blocks per Command: 128
DAC960#0: Driver Queue Depth: 63, Scatter/Gather Limit: 17 of 17 Segments
DAC960#0: Stripe Size: 8KB, Segment Size: 8KB, BIOS Geometry: 128/32
DAC960#0: Physical Devices:
DAC960#0: 0:1 Vendor: QUANTUM Model: ATLAS IV 18 WLS Revision: 0808
DAC960#0: Serial Number: 361917030035
DAC960#0: Disk Status: Online, 35883008 blocks
DAC960#0: 0:2 Vendor: QUANTUM Model: ATLAS IV 36 WLS Revision: 0808
DAC960#0: Serial Number: 363916633359
DAC960#0: Disk Status: Online, 71770112 blocks
DAC960#0: 0:4 Vendor: QUANTUM Model: ATLAS IV 18 WLS Revision: 0808
DAC960#0: Serial Number: 361916933847
DAC960#0: Disk Status: Online, 35883008 blocks
DAC960#0: Logical Drives:
DAC960#0: /dev/rd/c0d0: RAID-1, Online, 35883008 blocks, Write Thru
DAC960#0: /dev/rd/c0d1: RAID-7, Online, 35885056 blocks, Write Thru
DAC960#0: /dev/rd/c0d2: RAID-7, Online, 35885056 blocks, Write Thru
rd/c0d0: unknown partition table
rd/c0d1: unknown partition table
rd/c0d2: unknown partition table
DAC960#0: Flushing Cache...done

I've done a lot of search, but I'm not familiar with hardware raid. Someone has any idea?