DOCUMENT:Q102877  01-SEP-1993  [W_NT]
TITLE   :ARC Path to Windows NT Files Changes
PRODUCT :Windows NT
PROD/VER:3.10
OPER/SYS:WINDOWS
KEYWORDS:

------------------------------------------------------------------------
The information in this article applies to:
 
 - Microsoft Windows NT operating system, version 3.1
 - Microsoft Windows NT Advanced Server, version 3.1
------------------------------------------------------------------------
 
SUMMARY
=======
 
When you are using Disk Administrator to create new partitions on a
hard disk drive that has Windows NT on it, under certain
circumstances, the ARC path to the Windows NT files changes. When this
happens, a dialog box appears when you exit Disk Administrator warning
that the BOOT.INI needs to be changed to reflect the new path. You
need to edit the BOOT.INI file before choosing the OK button in the
dialog box because the next option restarts the system.
 
MORE INFORMATION
================
 
This situation occurs only with a system that has a drive
configuration similar to the following:
 
    ---------------------------------
    |  c:   |   d:   |  free space  |
    ---------------------------------
 
where Windows NT is located on drive d: and it is a logical drive in
an extended partition. Also, it is assumed that the free space is not
part of the extended partition. In this situation, any new partition
created in this space (which would have to be created as a primary
partition, because an extended partition already exists) causes the
ARC path to the extended partition to change, because the ARC
specifications count primary drives before those in extended
partitions. When the warning dialog box appears, do not choose the OK
button in the dialog box. Use Task Switch (by pressing either ALT+TAB
or CTRL+ESC) to switch to a text editor. Edit the BOOT.INI file to
reflect the new path to the Windows NT files. This involves editing a
line similar to the following:
 
   scsi(0)disk(0)rdisk(0)partition(1)\winnt
 
Change partition(X) to partition(X+1) to correctly modify the ARC path
to the Windows NT files.
 
If you have already restarted the computer without editing the
BOOT.INI file, the startup will fail due to the system being unable to
find the Windows NT files. To correct this  problem, use one of the
following procedures:
 
 - If your c: drive is FAT:
 
   1. Restart the computer into MS-DOS from either the multiboot screen, 
      or with a startup disk.

   2. At the prompt, type: 

         attrib -r -s -h boot.ini

   3. At the prompt, type:

         edit boot.ini

   4. Change partition(x) to partition(x+1)

   5. Save the file and quit out of the editor.

   6. Restart the computer.
 
 - If your c: drive is not FAT:
 
   1. Go to another computer running Windows NT and format a floppy disk.
      It will now have the Windows NT boot sector on it.

   2. Copy the following files onto the disk:

       - NTLDR
       - NTDETECT.COM
       - BOOT.INI

   3. Edit the BOOT.INI file (on the floppy disk) and change the ARC path
      so that it is correct for the computer that is unable to start 
      Windows NT.

   4. Use the startup disk to restart the computer unable to start 
      Windows NT.

   5. Follow steps 2 through 6 of the above option to edit the BOOT.INI
      file on the hard disk drive.
 
For more information on the ARC path structure and the BOOT.INI file,
query on the following words in the Microsoft Knowledge Base:
 
   arc and boot
 
Additional reference words: 3.10
KBCategory:
KBSubCategory: winnt stp

=============================================================================

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