Unattended Install prompts for install partition

This article was previously published under Q196288
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Steps to Reproduce the Behavior:

  1. Allocate two FAT partitions on a drive.
  2. Copy I386 directory to a folder on drive C.
  3. Copy files according to 185773 along with Setupdd.sys from the SP4 CD. For additional information, please see the following article in the Microsoft Knowledge Base:

    185773 NTFS Corruption on Drives > 4 GB Using ExtendOEMPartition
  4. Begin the unattended installation:

    WINNT /s:c:\i386 /b /u:c:\unattend.txt
  5. Observe the partition selection dialog box following the first restart.
When using the Setupdd.sys file from Service Pack 4 with an UnattendedInstallation, text mode setup will prompt for the install partition ifmultiple partitions exist on the drive. This will prevent the unattendedinstallation from continuing until a response is entered.

To avoid the Partition Selection prompt during unattended installation, addthe following option to the [Unattended] section of the Unattend.txt fileprior to starting the Winnt.exe installation:

This is a new option added in Service Pack 4. This option will cause theunattended installation to automatically select the installation partition.
A new feature added to Setupdd.sys gives the user an opportunity to selectthe partition to install to during an unattended installation. By defaultor if AutoPartition=0 is selected in the [Unattended] section of theUnattend.txt file and when multiple partitions exist, the user will beprompted to select one to install to.

Otherwise, if only one partition exists or if multiple partitions existwith AutoPartition=1 selected, the dialog will not be displayed to select apartition and the partition will automatically be selected.
This behavior is by design.

Article ID: 196288 - Last Review: 10/26/2013 01:35:00 - Revision: 3.0

  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Professional Edition
  • Microsoft Windows NT Server 4.0 Standard Edition
  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows NT Server 4.0 Enterprise Edition
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