Date: Thu, 04 Jan 2001 22:44:26 -0800 From: Mike Smith <msmith@freebsd.org> To: nathan@vidican.com Cc: questions@freebsd.org, hackers@freebsd.org Subject: Re: FreeBSD + Mylex DAC960 (RAID 1) + DEC Prioris HX 6000 Server will not recognize boot record for some reason Message-ID: <200101050644.f056iQt03104@mass.osd.bsdi.com> In-Reply-To: Your message of "Tue, 02 Jan 2001 16:45:22 EST." <3A524BF2.E2E1F3BF@wmptl.com>
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> This machine is an Intel Pentium Pro based system, (not a DEC Alpha), it
> currently has one 200mhz 512K CPU, 196megs RAM, (4 x 32edo simms, 4 x
> 16edo simms), and two 4.5Gig SCSI disks in hot-swappable drive carriages
> configured using RAID 1 (mirrored), attached to a Mylex DAC960P/PD
> dual-channel controller. I have flashed the firmware of the controller
> card to 3.52, as reccomended during the dmesg prompts (the card
> initially had < 3.51). The problem seems to be with booting, I have
> tried several installs; all seem to partition fine except for
> 'dangerously dedicated'. After an install using a 4.4Gig root, and an
> 80meg swap, (leaving 20megs un-partitioned at the end of the drive), the
> system will not boot. If I boot off of the installation floppies, I can
> mount/view the files on the drive. This leaves me thinking it's got to
> have something to do with FreeBSD's MBR.
This is a FAQ; you have a geometry mismatch.
Due to a bug in the Mylex driver, you have to set the Mylex "BIOS
geometry" to the 2GB mode, then make sure that sysinstall correctly picks
up the */128/32 geometry (it may be confused if you have other junk on
the drive).
I've fixed this in an updated version of the driver, but I haven't had
time (or recently, the hardware) to test it properly.
--
... every activity meets with opposition, everyone who acts has his
rivals and unfortunately opponents also. But not because people want
to be opponents, rather because the tasks and relationships force
people to take different points of view. [Dr. Fritz Todt]
V I C T O R Y N O T V E N G E A N C E
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