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Q110889: Can’t Choose Second Operating System on Olivetti M6 Computer

Article: Q110889
Product(s): Microsoft Windows NT
Version(s): 3.1 3.5
Operating System(s): 
Keyword(s): kb3rdparty kbhw kbHardware
Last Modified: 08-AUG-2001

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The information in this article applies to:

- Microsoft Windows NT Advanced Server, version 3.1 
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SYMPTOMS
========

You cannot successfully load the secondary operating system (MS-DOS) from Boot
Loader on an Olivetti M6 series computer if you are booting from a SCSI hard
disk drive connected to an Adaptec 154X controller. The following error message
appears:

  Non-system disk or disk error.

If you boot from the onboard IDE controller or any other hardware configuration,
this problem does not occur.

CAUSE
=====

This problem is caused by the specific interaction between the Olivetti M6
series computer and the Adaptec 154X controller.


WORKAROUND
==========

You can use a bootable floppy disk to avoid using Boot Loader in one of the
following two ways:

1. Boot from a bootable MS-DOS disk when you want to use MS-DOS.

2. Boot from a bootable MS-DOS disk. Use the SYS command to change the boot
  sector from the Windows NT Boot Loader to MS-DOS. When you want to return to
  Windows NT, boot with the Windows NT setup disk. Choose R for repair. After
  you insert the Emergency Repair disk, choose only to verify boot files on
  drive C.

STATUS
======

Microsoft has confirmed this to be a problem in Windows NT Advanced Server
version 3.1. This problem has been corrected in Windows NT Server version 3.5.

Additional query words: prodnt

======================================================================
Keywords          : kb3rdparty kbhw kbHardware 
Technology        : kbWinNTsearch kbWinNTAdvSerSearch kbWinNTAdvServ310 kbWinNT310Search
Version           : 3.1 3.5

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