Microsoft KB Archive/302098

= &quot;INACCESSIBLE_BOOT_DEVICE&quot; Message After Changing a SCSI Adapter Resource =

Article ID: 302098

Article Last Modified on 1/31/2007

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APPLIES TO


 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Service Pack 2
 * Microsoft Windows 2000 Service Pack 2

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This article was previously published under Q302098



IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry



SYMPTOMS
If you install a SCSI adapter driver by pressing the F6 key during Setup, and if your computer supports hotplugging or if you insert devices that cause PCI bus numbers to change (such as a PCI adapter with a PCI bridge), Windows 2000 may not be able to gain access to the SCSI adapter, which causes an &quot;INACCESSIBLE_BOOT_DEVICE&quot; message.



CAUSE
If you install a third-party driver by pressing the F6 key, Windows 2000 treats the SCSI adapter as a legacy device; Windows 2000 cannot then handle PCI bus and slot number changes.



RESOLUTION
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

The English version of this fix should have the following file attributes or later:   Date         Time   Version        Size     File name 03-Jul-2001 18:26  5.0.2195.3815  380,752  Setupdd.sys 20-Jul-2001 18:51                 229,792  Setupldr.bin 20-Jul-2001 18:51                 211,216  Setupldr.exe

If you must start Windows 2000 Setup from boot disks, use the following procedure.

NOTE: If you have a Windows 2000 Service Pack 3 Slipstream CD-ROM, you do not need to follow these steps. You can instead boot from the disc to start Windows 2000 Setup.  Create boot disks.For additional information, click the article number below to view the article in the Microsoft Knowledge Base:

197063 HOW TO: Create Setup Boot Disks for Windows 2000

 Replace Setupldr.bin on Disk 1 with the Setupldr.bin file that is in the hotfix that is provided through this article. Replace Setupdd.sys on Disk 2 with the Setupdd.sys file that is in the hotfix that is provided through this article. Copy your Windows 2000 CD-ROM to you hard drive (for example, copy it to C:\w2kcd). Rename the Setupldr.exe file that is provided in the hotfix as Setupldr.ex_ .</li> Replace Setupldr.ex_ in the i386 folder (in the Windows 2000 copy that you made to your hard drive in step 4) with the file that you renamed in step 5.</li> Create a new Windows 2000 CD-ROM from the version that you copied to your hard drive.</li></ol>

<div class="workaround_section">

WORKAROUND
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To work around this issue, delete the following registry values:

Key:

HKEY_LOCAL_MACHINE\System\CurrentControlset\Enum\PCI\ \ \DeviceParameter\Scsiport

Values:

'''BusNumber

SlotNumber

LegacyInterfaceType'''

<ol> Shut down the computer.</li> Remove the system disk and attach it to a second computer running Windows NT 4.0 or later.</li> Start the second computer and log on as Administrator.</li> Start Regedt32, navigate to the HKEY_LOCAL_MACHINE hive, and then click to select the root object.</li> Click to select Registry\Load Hive.</li> Navigate to the System32\Config folder of the installation that experiences the problem. It should be on a drive of the newly attached hard disk.</li> Click to select, and then open, the System file in this directory.</li> In the next dialog box, type a name for the loaded hive. For example, type SYS .</li> Open the following registry subkey:

HKEY_LOCAL_MACHINE\SYS\Select

</li> Look at the value labeled &quot;Current&quot;. This will tell you which control set to use. It should be &quot;1&quot; in most cases, so the control set would be:

HKEY_LOCAL_MACHINE\SYS\ControlSet001

</li> In this control set, open the subkey:

Enum\PCI\ \ \DeviceParameter\Scsiport

Replace  with the actual device ID of the SCSI adapter.</li> In this key, delete the following registry values:

'''BusNumber

SlotNumber

LegacyInterfaceType'''

</li> Shut down the system.</li> Reattach the hard disk to the original system.</li></ol>

Since this problem only happens because the number and/or arrangement of PCI adapters has changed since Setup was started, undoing these changes will prevent the problem from happening. After Setup has completed, you can delete the registry entries mentioned in step 12 below. But you should use the following as the base key in the machine registry:

HKEY_LOCAL_MACHINE\CurrentControlSet

There is no need to load a hive in this case.

<div class="status_section">

STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 3.

<div class="moreinformation_section">

MORE INFORMATION
For additional information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the article number below to view the article in the Microsoft Knowledge Base:

265173 Datacenter Program and Windows 2000 Datacenter Server Product

For additional information on how to install multiple hotfixes with only one reboot, click the article number below to view the article in the Microsoft Knowledge Base:

296861 Use QChain.exe to Install Multiple Hotfixes with One Reboot

For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes

Additional query words: kbSetup

Keywords: kbbug kbfix kbwin2000presp3fix kbqfe kbwin2000sp3fix kbsetup kbhotfixserver KB302098

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