*BSD News Article 86651


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From: Bill Hilburn <billh@binary.net>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Booting from an sd0 when I have a wd0 - HELP!
Date: Fri, 10 Jan 1997 21:43:05 -0600
Organization: Binary Net, Inc.
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To: gnazhiyath@csoftnet.com
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Hello Girish !

I have 3 EIDE drives in my Pentium along with a 2.8 GB Conner SCSI
on an Adaptec 78xx PCI.

What your about to find out is that there is a routine in the SCSI BIOS
that say's "If there is an 'active' IDE, it has precidence !"

In other words, If you have your IDE drive(s) listed in CMOS they
are 'active' and the SCSI drive is not allowed to boot.

The only way I have found to get around this is when I want to
boot FreeBSD I reboot, hit <Del> to enter 'setup' (CMOS) and set
'ALL' the IDE drives to "NOT INSTALLED" then Save and Exit CMOS,
the machine reboots and tada.. FreeBSD, when I need DOS/Win95,
I "shutdown -r now" (-r = reboot) enter setup and turn the IDE
drives back on, By the way, you will not have to 're-detect' your
drives, simply put the "Drive Type" setting back where is was before,
even on "User Defined" or "Type 47" and the old setting should still
be there, CAUTION: It might not hurt to write these down just in case.
No damage to your machine will be incured by this constant switch,
non that I can find anyway.

Have Fun Girish !
#include <bill.h>
Bill Hilburn
Lincoln School of Commerce
http://www.binary.net/billh



Girish Nazhiyath wrote:
> 
> Hi,
> 
>         I have a Quantum IDE drive as my primary and a Seagate Hawk
> SCSI drive running off an Adaptec AHA 2940UW controller as my secondary
> (the drive has a SCSI ID of 0).  Each time I install FreeBSD (from the Walnut
> Creek CDROM 2.x version) onto the SCSI drive, the system tries to read from
> floppy after the reboot and hangs.
> 
>         I see the message ' Use 2:sd(0,a)/kernel to boot from sd0 when wd0 is
> present' when I'm booting off the install floppy - it doesn't pause long
> enough for me to type in anything.  Is there somewhere I can get an image from
> to boot with these parameters?  Any help would be appreciated.  Please email
> me directly at gnazhiyath@csoftnet.com or post to this newsgroup.  Thanks in
> advance.
> 
> --- Girish
> gnazhiyath@csoftnet.com