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From: rlarso01@ic1d.harris.com (Ron Larson)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: FreeBSD on Second HD and OS/2 Bootmanager?
Date: Wed, 15 Nov 1995 14:22:43 GMT
Organization: Harris Corporation
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jay@map.com wrote:

>Has anyone successfully installed FreeBSD on a second HD with OS/2 on the
>first and used OS/2's Boot Manager to boot FreeBSD?  

>I'm about to install FreeBSD, and was wondering if anyone has had to (or
>wanted to) do this, and what they did to get it working.

>A second question for those in the know - If I make space on the first HD for
>a swap partition, will the FreeBSD fdisk mark it as something other than a
>DOS or OS/2 partition?  I wouldn't want OS/2 to think another partition has 
>appeared, since that would certainly confuse OS/2 as to where it is booting
>from.

<snip>

I have a system where I've mixed DOS/WIN, OS/2 Warp, and FreeBSD 2.0.5

areas across 4 HDs. Yes, I was using OS/2 Boot Manager with no
problems (was because the motherboard is in the process of getting
replaced right now so it's a little hard to read what's on the screen
8-)

Seriously though, recalling the setup on that system, I have:

   1st HD: OS/2 Boot Mgr. Partn.
	DOS 6.22/WFW (the rest) C:\ ==> WDAC2340 340MB IDE HD

  2nd HD: DOS data area D:\		==> WDAC31200 1.2GB EIDE HD

	- these are hooked up to a Promise 2300 VLB EIDE controller along with
a TEAC Combo FD (3.5/5.25)

  3rd HD: OS/2 Warp System area E:\
	FreeBSD swap (either 64 or 128MB size) ==> Quantum 340MB SCSI HD

  4th HD:  OS/2 data area  F:\
	FreeBSD 2.0.5 System area  /
	FreeBSD data area  /usr		==> Quantum 1.8GB SCSI HD

	- these are connected to an Adaptec 2842VL SCSI controller along with
a Colorado PowerDAT 2400 tape drive.

I also have a Toshiba 3401 CD-ROM drive (G:\ or /cdrom?) hooked up to
a SoundBlaster 16 SCSI-2.

The only "experimentation" required to get this setup to work was to
turn ON extended translation, since OS/2's FDISK utility didn't like
partitioning with FreeBSD's "slicer" (this pertains only to the 1.8GB
SCSI HD, the smaller one's visible geometry didn't change whether
extended translation was on or off). This contrasted to FreeBSD 2.0R
where I did have to turn translation OFF. I got that to work with OS/2
2.1 (as well as with the XR6000? Service Pack), but I also only had 3
HDs at the time (the 340MB IDE and the 2 SCSIs).

At any rate, what I ultimately had to do was turn ON extended
translation (which might be 255 cyl./64 heads, I can't recall offhand
- anybody know for sure?), install OS/2 first (because Warp had this
uncanny ability to just want the first partition on a HD for itself),
then installed a more openminded ;-) FreeBSD. After that it was just a
matter of pointing Boot Manager in the right direction for each OS
area. When you first boot up FreeBSD (assuming you have 2.0.5) don't
forget to put in a disk in the CD-ROM drive, otherwise it'll wait for
one.


Good luck!
Ron Larson
rlarso01@ic1d.harris.com