AS1000A with Mylex DAC960 RAID-5 as only disk

[randall272-fbsd at yahoo.com]

dmesg output from 5.1-RELEASE boot FWIW:

Unrecognized boot flag '0'.
Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD 5.1-RELEASE #0: Thu Jun  5 01:42:39 GMT 2003
    root at mithlond.btc.adaptec.com:/usr/obj/usr/src/sys/GENERIC
Preloaded elf kernel "/boot/kernel/kernel" at 0xfffffc00008e8000.
AlphaServer 1000/1000A
AlphaServer 1000A 5/333, 333MHz
8192 byte page size, 1 processor.
CPU: EV56 (21164A) major=7 minor=2 extensions=0x1<BWX>
OSF PAL rev: 0x1000600020117
real memory  = 266371072 (254 MB)
avail memory = 250265600 (238 MB)
cia0: <2117x Core Logic chipset>
cia0: ALCOR/ALCOR2, pass 3
cia0: extended capabilities: 21<DWEN,BWEN>
pcib0: <2117x PCI host bus adapter> on cia0
pci0: <PCI bus> on pcib0
eisab0: <PCI-EISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on eisab0
pcib1: <PCI-PCI bridge> at device 8.0 on pci0
pci2: <PCI bus> on pcib1
isp0: <Qlogic ISP 1020/1040 PCI SCSI Adapter> port 0x9000-0x90ff mem
0x81810000-0x81810fff irq 0 at device 0.0 on pci2
isp0: interrupting at CIA irq 0
pci2: <multimedia, audio> at device 2.0 (no driver attached)
pci0: <display, VGA> at device 11.0 (no driver attached)
de0: <Digital 21140A Fast Ethernet> port 0xa000-0xa07f mem
0x8195c000-0x8195c07f irq 3 at device 12.0 on pci0
de0: interrupting at CIA irq 3
de0: DEC DE500-AA 21140A [10-100Mb/s] pass 2.0
de0: address 00:00:f8:05:6d:a0
de0: enabling 10baseT port
mlx0: <Mylex version 2 RAID interface> port 0xa080-0xa0ff mem
0x8195c080-0x8195c0ff irq 5 at device 13.0 on pci0
mlx0: interrupting at CIA irq 5
mlx0: DAC960P/PD, 3 channels, firmware 2.42-0-00, 4MB RAM
mlxd0: <Mylex System Drive> on mlx0
mlxd0: 24546MB (50270208 sectors) RAID 5 (online)
ata0 at port 0x3f6,0x1f0-0x1f7 irq 14 on isa0
ata0: interrupting at ISA irq 14
ata1 at port 0x376,0x170-0x177 irq 15 on isa0
ata1: interrupting at ISA irq 15
atkbdc0: <Keyboard controller (i8042)> at port 0x64,0x60 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
atkbd0: interrupting at ISA irq 1
fdc0: <Enhanced floppy controller (i82077, NE72065 or clone)> at port
0x3f7,0x3f0-0x3f5 irq 6 drq 2 on isa0
fdc0: interrupting at ISA irq 6
mcclock0: <MC146818A real time clock> at port 0x70-0x71 on isa0
ppc0: <Parallel port> at port 0x3bc-0x3c3 irq 7 on isa0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
ppbus0: <Parallel port bus> on ppc0
lpt0: <Printer> on ppbus0
lpt0: Polled port
ppi0: <Parallel I/O> on ppbus0
ppc0: interrupting at ISA irq 7
sc0: <System console> on isa0
sc0: VGA <16 virtual consoles, flags=0x200>
sio0 at port 0x3f8-0x3ff irq 4 on isa0
sio0: type 16550A
sio0: interrupting at ISA irq 4
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
sio1: interrupting at ISA irq 3
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounter "i8254"  frequency 1193182 Hz
Timecounter "alpha"  frequency 333322884 Hz
Timecounters tick every 0.976 msec
Waiting 15 seconds for SCSI devices to settle
cd0 at isp0 bus 0 target 4 lun 0
cd0: <DEC RRD46   (C) DEC 0557> Removable CD-ROM SCSI-2 device
Mounting root from ufs:/dev/mlxd0a
cd0: 10.000MB/s transfers (10.000MHz, offset 8)
cd0: cd present [1256136 x 512 byte records]