*BSD News Article 78693


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From: Ken Bigelow <kbigelow@www.play-hookey.com>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: ESDI sectors/cyl vs disk label :(
Date: Thu, 19 Sep 1996 19:45:19 +0000
Organization: Erol's Internet Services
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Larry Miller [DT] wrote:
> 
> Hi, folks--
> 
> After a couple of days trying to install FreeBSD on a machine that I
> thought would be a piece of cake, I'm about to tear my hair out.  Help!
> 
> 386-20 w/coprocessor, Herc monochrome, 16m RAM, 340m (Micropolis?) ESDI
> drive, Ultrastor (12?) ESDI controller, 3C509 combo NIC.
> 
> The drive is ESDI, 1780 cyl, 7 heads, 54 sec/track, 512b/s.  The
> controller has options for sector mapping to 17,32, or 63 sectors and/or
> 1024 cyl truncation.  Installing from boot floppies over NFS. I've tried
> installation without any drive mapping, with 63 sector mapping,
> with/without cylinder truncation.  During startup probes, the controller
> is recognized as WD0 and the correct physical disk geometry is displayed.
> Inevitably, I get partway into the installation and get the warning
> message that the calculated sectors/cylinder (some number) disagree with
> disk label (some lesser number), that the drive is 32 megabytes (hmm?),
> and after a while the installation crashes.  Obviously it's difficult to
> evaluate this without systematic data, but what would help a lot would be
> if someone could tell me WHERE the installation routines get the numbers
> that are disagreeing, and how we can convince them to agree?
> 
> Would very much appreciate ANY insight-- this has me totally baffled.
> 

Just a couple of points. First, with a motherboard that old, the BIOS
may be having problems with a large drive. (Maybe not :-)  ). In any
case, try the LBA model, with <1024 cylinders. All of my installations
of 2.1R had problems otherwise.

I hope this helps!
-- 
Ken

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