Microsoft KB Archive/890745

= FIX: You cannot change the ownership of files that are owned by other users when you log on as the root user in Windows Services for UNIX 3.5 =

Article ID: 890745

Article Last Modified on 11/15/2007

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APPLIES TO


 * Microsoft Windows Services for UNIX 3.5

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SYMPTOMS
After you configure Server for NFS in Microsoft Windows Services for UNIX 3.5, you may intermittently experience all the following symptoms:
 * When you log on as the root user, you cannot change the ownership of files that are owned by other users. For example, if you run the chown command to change the ownership of a file, the file ownership does not change to the new user who you specify. Additionally, you do not receive an error message to indicate that the file ownership does not successfully change.
 * After you run the chown command, the file ownership that you tried to change is changed to &quot;nobody.&quot;

Note To view the file ownership, run the ls -l command.
 * The following event is logged in the application log of the server that is running the User Name Mapping service:

Event Source: NfsSvr

Event ID: 1021

Type: Warning

Description: There was mapping failure.



CAUSE
This problem may occur if all the following conditions are true:
 * You are running Microsoft Windows Server 2003 on all the domain controllers in your domain.
 * Your domain is running in the Windows Server 2003 domain functional level.
 * Server for NFS Authentication is not installed on the domain controllers.

When these conditions are all true, the Network File System (NFS) service may sometimes prevent the root user from changing the ownership of files that are owned by other users. Instead, the file ownership is changed to &quot;nobody&quot; for UNIX users, and the file ownership is changed to &quot;anonymous&quot; for Windows users.



Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that this article describes. Apply this hotfix only to systems that are experiencing this specific problem.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
No prerequisites are required to apply this hotfix.

Restart requirement
You must restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix replaces 885850.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time   Version     Size     File name ---  10-Dec-2004  19:41  8.0.2254.7  423,424  Nfssvr.sys



WORKAROUND
To work around this problem, install Server for NFS Authentication on all the domain controllers in your domain.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional query words: SFU Interix

Keywords: kbqfe kbhotfixserver kbbug kbfix KB890745

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