To: opendos AT delorie DOT com
Date: Fri, 7 Jul 2000 17:01:13 -0700
Subject: Re: Recognizing SCSI HDD
Message-ID: <20000707.204115.-527095.0.domanspc@juno.com>
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From: Robert W Moss <domanspc AT juno DOT com>
Reply-To: opendos AT delorie DOT com

If you use Partition Magic to make the first partition the FAT partition 
and hide it, then make the first NTFS position active, then when you 
get ready to run disk image unhide the FAT partition and swap the 
active partitions, and then switch them back afterwards that might 
also do the job, even if it takes a couple of extra steps.  My son-in-law

says he was taught this method when working for IBM and has been 
doing that for some time.

BOB 'DOMAN' MOSS   

On Fri, 7 Jul 2000 18:49:16 +0100 "Matthias Paul"
<PAUL-MA AT reze-1 DOT rz DOT rwth-aachen DOT de> writes:
> On Thu 6 Jul 2000, Barbara Nitz wrote:
> 
> > Well, my active partition is NTFS formatted and will stay that 
> way, as my
> > machine is an NT machine, as Bob pointed out. This is also the 
> reason why I
> > won't use any FDISK from DOS on my HDD, it just might make the 
> partition
> > table unusable. Partition Magic works nicely to set active 
> partitions and to
> > switch the layout *if* you have a driveimage as backup (which I 
> currently
> > don't have).
> I have to admit that I only had a short look at this thread so far, 
> so I might have missed something. However, if your (primary) NTFS 
> partition is the active partition, DOS will not be able to see any 
> primary FAT partitions on this drive, not with OpenDOS, not with 
> DR-DOS, not with MS-DOS/PC DOS. You should, however, be able to 
> see FAT partitions as logical drives in an extended partition.
> DR-DOS FDISK allows to create them even if you don't have a 
> primary FAT partition. This should do it.
> 
> > > Does the bios (cmos setup) have a "boot from scsi" option?<
> > Yes, either boot from SCSI first or boot from IDE first. Does not 
> matter, as
> > I also have an option turned on that drive A is the one to be 
> checked before
> > C. I do boot from A, and this succeeds. DOS just does not 
> recognize the FAT
> > partition as a C drive.
> It cannot as long as the NTFS partition is active.
> 
> > > Obviously, I think it is primarily a cmos/bios setup problem<
> > Well, I did some reading on OpenDOS features and setup, and I now 
> believe it
> > is a design flaw in OpenDOS. From all FDISK descriptions it sounds 
> as if the
> > FAT partition *must* be the first partition on any hard drive, not 
> matter if
> > you want to boot from it or not.
> AFAIK this is a restriction with older versions of MS-DOS/PC DOS, 
> but
> not with DR-DOS. 
> 
> Please let us know if it helps...
> 
>  Matthias
>  
> -------------------------------------------------------------------
> Matthias Paul, Ubierstrasse 28, D-50321 Bruehl, Germany
> eMail: <Matthias DOT Paul AT post DOT rwth-aachen DOT de>
> Web  : http://www.rhrz.uni-bonn.de/~uzs180/mpdokeng.html
> -------------------------------------------------------------------

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