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From: Poul-Henning Kamp <phk@FreeBSD.ORG>
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Date: Thu, 18 Sep 1997 23:24:13 -0700 (PDT)
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To: stevedav@netcom.com, phk@FreeBSD.ORG, freebsd-bugs@FreeBSD.ORG
Subject: Re: i386/4315
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Synopsis: sio0 and sio1 serial ports fail to probe

State-Changed-From-To: open-closed
State-Changed-By: phk
State-Changed-When: Thu Sep 18 23:22:22 PDT 1997
State-Changed-Why: 

Not much we can do.

Try boot -cv
then set flags to 0x80 on the two sio ports.  This will give more verbose
information.  Then check the sources and see what you find.

Alternatively, you may have a PnP challenged motherboard, is there a
BIOS setting for  "PnP OS" / "MSDOS" or similar ?  if so set it to MSDOS.