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Date:      Thu, 27 Sep 2001 16:39:49 +0200
From:      "Bolmerg-Berliner, Ludger - Munich" <LBolmerg@munichre.com>
To:        "'freebsd-questions@freebsd.org'" <freebsd-questions@freebsd.org>
Subject:   boot problem with MYLEX raid controller
Message-ID:  <9CC75130B051D511B7F500034723859E211B2A@mxx0021.munich.munichre.com>

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Hi 

I have a machine with a MYLEX raid controller configured for Raid 1. I have
successfully installed FreeBSD 4.2 on that machine. When I try boot from
disk I just get a "operating system not found message"

I can boot from CD, interrupt the boot process, set the current device to
the disk and than boot from disk.

dmesg shows the following messages:

...
mlx0: <Mylex version 5 RAID interface> port 0x2000-0x207f mem
0xfc000000-0xfdffffff,0xfa410000-0xfa41007f irq 15 at device 8.0 on pci3
mlx0: controller initialisation in progress...
mlx0: initialisation complete.
mlx0: DAC1164PVX, 3 channels, firmware 5.07-0-87, 32MB RAM
mlxd0: <Mylex System Drive> on mlx0
mlxd0: 8679MB (17774592 sectors) RAID 1 (online)
mlxd1: <Mylex System Drive> on mlx0
mlxd1: 17299MB (35428352 sectors) RAID 1 (online)
....
Waiting 15 seconds for SCSI devices to settle
sa0 at ahc0 bus 0 target 4 lun 0
sa0: <HP C1537A L708> Removable Sequential Access SCSI-2 device 
sa0: 10.000MB/s transfers (10.000MHz, offset 32)
no devsw (majdev=0 bootdev=0xa0200000)
cd0 at ahc0 bus 0 target 5 lun 0
cd0: <NEC CD-ROM DRIVE:466 1.17> Removable CD-ROM SCSI-2 device 
cd0: 20.000MB/s transfers (20.000MHz, offset 16)
cd0: cd present [329626 x 2048 byte records]
Mounting root from ufs:/dev/mlxd0s1a

What puzzles me is the fact that I cannot read the disklabel from the disk.
	# disklabel -r mlxd0
	disklabel: bad pack magic number (label is damaged, or pack is
unlabeled)

and reading the disklabel from memory shows strange entries:
	# disklabel  mlxd0
	# /dev/mlxd0:
	type: SCSI
	disk: amnesiac
	label: fictitious
	flags:
	bytes/sector: 512
	sectors/track: 32
	tracks/cylinder: 128
	sectors/cylinder: 4096
	cylinders: 4339
	sectors/unit: 17774592
	rpm: 3600
	interleave: 1
	trackskew: 0
	cylinderskew: 0
	headswitch: 0           # milliseconds
	track-to-track seek: 0  # milliseconds
	drivedata: 0 

	8 partitions:
	#        size   offset    fstype   [fsize bsize bps/cpg]  c:
17774592        0    unused        0     0         # (Cyl.    0 - 4339*)

Any glue what could be wrong?  

Regards
Ludger



Ludger Bolmerg
Munich Re
IT164 Network Services
Tel. +49 89 3891 5506
Fax. +49 89 3891 75506
mailto:lbolmerg@munichre.com


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