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Date:      Tue, 3 Dec 2002 20:57:39 -0000 (GMT)
From:      <jon@witchspace.com>
To:        <freebsd-questions@freebsd.org>
Subject:   [Q] Disk geometry problems
Message-ID:  <4455.192.168.0.100.1038949059.squirrel@webmail.witchspace.com>

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Hiya


I've just built a server based around an Epox KT333 mmotherboard
and Athlon processor.

I booted from the 4.7 CD, but when I went to the slice editor
sysinstall complained that my disk geometery was incorrect and
it was using its own values. I tried using 'G' to set the
geometry to the BIOS values but sysinstall rejected them.

It wouldn't have bothered me that much, but the machine wouldn't
boot into FreeBSD after the installation.  It just went away
for a while, then gave the 'missing system disk' error.

Although it's possible that booting is failing for some reason
other than the geometry issue, has anyone else run into a similar
problem before?

The BIOS's idea of the disk geometry:

Cyl 28733
Head 16
Precomp 0
Landing Zone 28732
Sector 255

FreeBSD says:

Cyl 7297
Head 255
Sector 63

I could try setting the BIOS geometry to the FreeBSD geometry
(which would require switching from LBA mode to CHS), is this
likely to make any difference?

Cheers,


--Jon

http://www.witchspace.com




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