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Date:      Sat, 25 Mar 2000 14:53:04 -0500 (EST)
From:      John Baldwin <jhb@FreeBSD.org>
To:        Michael Sims <jellicle@inch.com>
Cc:        freebsd-questions@FreeBSD.org
Subject:   RE: dual-boot to second drive
Message-ID:  <200003251953.OAA82844@server.baldwin.cx>
In-Reply-To: <Pine.BSF.3.96.1000325122206.2919B-100000@shell.inch.com>

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On 25-Mar-00 Michael Sims wrote:
> 
> 
> On Sat, 25 Mar 2000, John Baldwin wrote:
> 
>> On 25-Mar-00 Michael Sims wrote:
>> > 
>> > I have two physical IDE drives, primary master C: with Win98, and primary
>> > slave with (I hope) a successful installation of FreeBSD 3.4 on it from
>> > CD-ROM.  I say "I hope" because I don't have any way to boot into it
>> > except by booting the 3.4 CD-ROM, which starts the installation process,
>> > or by booting from the kernel and mfsroot floppies I made, which also
>> > start the installation process.
>> >  
>> > Now, I believe I need a boot manager at the beginning of the C: to query
>> > me whether I want to boot into Windows or FreeBSD.  However, _The Complete
>> > FreeBSD_ sure doesn't seem to discuss this particular situation, at all. 
>> > What is the best way of doing this without running any significant risk of
>> > devastating the C:?
>> 
>> Boot up into the installation.  Don't reinstall FreeBSD, but instead go to
>> Configure -> Fdisk -> wd0 -> type 'Q' to exit that screen -> BootMgr should
>> be selected, so just hit Enter, and that should do the trick.  If you want
>> a nicer looking boot manager, go into Windows 98, pop in the FreeBSD CD, and
>> look in the tools/ subdirectory for osbsbeta.exe.  (Don't worry, it says beta,
>> but I've never had any problems with it).  Make a bootable floppy, then copy
>> osbsbeta.exe over onto the floppy.  Pop up a DOS window and run osbsbeta while
>> on A: to extract it.  It contains a README, and you can just boot your system
>> off the floppy to install it.  Be sure and save a copy of your current MBR when
>> doing this so that in case something does happen to break for some weird reason,
>> you can restore your working setup.  That is detailed in the README, IIRC.
> 
> This doesn't work for what I want to do.  OS-BS will let me dual-boot to
> any OS's that have partitions on the primary hard disk - but that disk is
> 100% Win98.  Every example I've seen assumes that there are multiple
> different OS partitions on a single hard disk, and the second disk, if
> any, is only used to provide some more space for OS whatever.  This page:
> 
> http://www.freebsd.org/tutorials/multi-os/ch3.html
> 
> covers *that* situation fairly well.  What I'm looking for is any way to
> boot to an OS that does NOT have a partition on the primary master hard
> disk in the system?

boot0 (the BootMgr option in sysinstall) can do this.  You use F5 to choose
Disk 2 in it to boot off another disk.  To use that, follow my first set of
instructions.

> -- Michael Sims

-- 

John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/
PGP Key: http://www.cslab.vt.edu/~jobaldwi/pgpkey.asc
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/


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