Re: dual boot - OpenBSD/Windo$2000

["Bartjan van der Meer" <bartjan@indes.com>]

Hai Alfred and all,

(also for the list archive)

I got OpenBSD-2.8 and Win2000 to work on my laptop (Dell Latitude). I more
or less followed this procedure:

1. Wiped the disk (approx. 11GB), and created a primary partition (approx
8GB, active, ntfs) for Win2000. Installed and booted that.
2. Booted the 2.8-cdrom and tried to follow the installation script. This
failed on fdisk, because of the 'famous' 1k-sector limit. My own
mistake --the 8GB ntfs for win2000 as first partition was not a good idea. I
didn't got fdisk to write the partition the way I wanted it to; it refused
sector-sizes above 1023.
3. Booted a Linux-floppy I dug up from my archive (mini-linux-something),
and used their fdisk to create the OpenBSD partition and partition-id.
4. Again booted the 2.8-cdrom, skipped fdisk and continued with the
disklabel editor. No problems here, a painless install.
5. Reboot, and since ntfs is still the active partition, ended-up in
win2000. At this moment I could have set the openbsd-partition active and
perform the 'dd if=/dev/wd0c of=mbr.bsd count=1 [bs=512]' trick, but the
following solution is also nice:
6. Use the 'bootpart' tool from mr. Gilles Vollant
(http://www.winimage.com/bootpart.htm) that will help you to manipulate the
nt-bootloader from the win2000 cmd-prompt.
7. (and up) Happily running OpenBSD in my spare time.

 Regards, Bartjan

---
Bartjan van der Meer
Indes - IDS bv
Tel. +31 (0) 345 545 535

----- Original Message -----
From: "Alfred Breull" <puma@hannover.sgh-net.de>
To: <misc@openbsd.org>
Sent: Wednesday, January 10, 2001 10:39 AM
Subject: Re: dual boot - OpenBSD/Windo$2000


>
> hm. And your win2k partition is automatically shown in disklabel etc ?
>
> However (and for the list archive), I felt it easier to first install
> win/msdos, use openbsd's fdisk to set the win/msdos or openbsd slice
> to 'active partition', mount win/msdos after the 1-st reboot, and mv
> 'openbsd.pbr' to the win/msdos root, i.e. C:\, (faq 4.1).
>
> Also, several notebooks (i.e. some toshibas) require, at least, a small
> msdos partition for some bios (settings) and such -- which may be
> needed when configuring X ?
>
>
> --------------
> At 11:08 09.01.01 +0100, Andreas Feichtner <tuned@fan.priv.at> wrote:
> >hi,
> >I have installed OpenBSD and Window$2000 on my laptop
> >and solved the dual-boot problem using the NT-bootloader
> >describted in the 'NT OS Loader + Linux mini-HOWTO'
> >
> >* install BSD and set the BSD partition as aktiv
> >* boot BSD
> >* backup the MBR with the activ BSD partition
> >   dd if=/dev/wd0c of=mbr.bsd count=1 [bs=512]
> >and put the MBR file on a MSDOS floppy (as example)
> >* install Windo$2000 - the partition with Windo$2000
> >will be set as activ.
> >* boot Window$2000 - copy the MBR to C:\
> >* edit the C:\boot.ini file
> >  add at the end of the boot.ini file
> >'C:\name-of-MBR-file="OpenBSD"
> >
> >thats it -
> >
> >cu fan
> >
> >
> >
>