Microsoft KB Archive/218974

= Cannot Boot off of a SCSI Device Other Than LUN 0 =

Article ID: 218974

Article Last Modified on 2/22/2007

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APPLIES TO


 * Microsoft Windows NT Server 3.51
 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Workstation 3.51
 * Microsoft Windows NT Workstation 4.0 Developer Edition
 * Microsoft Windows 2000 Server
 * Microsoft Windows Server 2003, Web Edition
 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)

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This article was previously published under Q218974



SUMMARY
Attempting to install Windows NT to a SCSI mass storage device other than Logical Unit Number (LUN) 0 is not recomended and is not supported.



MORE INFORMATION
There are many constraints that affect the boot sequence and there are different error messages that can be encountered. During the installation of Windows NT, hard drives on LUNs other than 0 may be displayed. If you attempt to install Windows NT to one of these partitions you may get the following error message:

The hard disk containing the partition or free space you chose has a Logical Unit Number (LUN) greater than 0, and is not assessable to your computer's setup program. Setup cannot install Windows NT on this hard disk.

Please contact your computer or hard disk controller manufacturer for more information.

Press ENTER to continue.

For additional information, see the following article or articles in the Microsoft Knowledge Base:

168105 WinNT Fails to Create a Memory.dmp On Any Other LUN Than 0

162471 WinNT 4.0 May Not Recognize SCSI Devices Using Nonzero LUNs

Keywords: kbinfo KB218974

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