Symptoms

Consider the following scenario:

  • You create a Network File System (NFS) share on an NFS server that is running Windows Server 2008.

  • You enable the Allow root access feature on the NFS server.

  • You add the root account to the administrators group.

  • You try to copy files from a UNIX-based NFS client to the NFS share by using the root account.

In this scenario, the copy operation fails and you receive the following error message:

Access is denied

Cause

This issue occurs because of an issue in the Nfssvr.sys driver.

Resolution

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:

http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must be running Windows Server 2008 Service Pack 2 (SP2).

For more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

968849 How to obtain the latest service pack for Windows Server 2008

Registry information

To apply the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows Server 2008 file information notes

Important Windows Vista hotfixes and Windows Server 2008 hotfixes are included in the same packages. However, only "Windows Vista" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows Vista" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    SR_Level

    Service branch

    6.0.600
    2.
    22xxx

    Windows Server 2008

    SP2

    LDR

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008" section. MUM files and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Msnfsflt.mof

Not applicable

4,437

09-Sep-2011

11:48

Msnfsflt.sys

6.0.6002.22759

23,552

20-Dec-2011

13:46

Nfs-servercore-ppdlic.xrm-ms

Not applicable

3,001

20-Dec-2011

15:38

Nfssvc.exe

6.0.6002.22759

28,672

20-Dec-2011

13:46

Nfssvr.mof

Not applicable

6,172

09-Sep-2011

11:48

Nfssvr.sys

6.0.6002.22759

497,664

20-Dec-2011

13:46

For all supported x64-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Msnfsflt.mof

Not applicable

4,437

01-Dec-2011

11:39

Msnfsflt.sys

6.0.6002.22759

30,208

20-Dec-2011

14:02

Nfs-servercore-ppdlic.xrm-ms

Not applicable

3,001

20-Dec-2011

16:02

Nfssvc.exe

6.0.6002.22759

33,280

20-Dec-2011

14:02

Nfssvr.mof

Not applicable

6,172

01-Dec-2011

11:39

Nfssvr.sys

6.0.6002.22759

643,584

20-Dec-2011

14:03

For all supported IA-64–based versions of Windows Server 2008

File name

File version

File size

Date

Time

Msnfsflt.mof

Not applicable

4,437

15-Mar-2011

06:04

Msnfsflt.sys

6.0.6002.22759

65,024

20-Dec-2011

13:25

Nfs-servercore-ppdlic.xrm-ms

Not applicable

3,001

20-Dec-2011

15:07

Nfssvc.exe

6.0.6002.22759

67,584

20-Dec-2011

13:25

Nfssvr.mof

Not applicable

6,172

15-Mar-2011

06:04

Nfssvr.sys

6.0.6002.22759

1,412,096

20-Dec-2011

13:26

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about software update terminology, 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

For more information about how to grant NFS clients root access and anonymous access to resources, visit the following Microsoft website:

General information about how to grant NFS clients root access and anonymous access to resources

Additional file information

Additional file information for Windows Vista and for Windows Server 2008

Additional files for all supported x86-based versions of Windows Server 2008

File name

X86_a6abdfc3a142f0d3cf81afafcbb8f7c3_31bf3856ad364e35_6.0.6002.22759_none_f48eeda5df2c1b95.manifest

File version

Not applicable

File size

702

Date (UTC)

20-Dec-2011

Time (UTC)

18:51

File name

X86_microsoft-windows-nfs-servercore_31bf3856ad364e35_6.0.6002.22759_none_5de7bb3b1daffe0f.manifest

File version

Not applicable

File size

50,906

Date (UTC)

20-Dec-2011

Time (UTC)

16:15

Additional files for all supported x64-based versions of Windows Server 2008

File name

Amd64_814ef354349424b539c59fcc74550967_31bf3856ad364e35_6.0.6002.22759_none_bb9ad8158e78a087.manifest

File version

Not applicable

File size

706

Date (UTC)

20-Dec-2011

Time (UTC)

18:51

File name

Amd64_microsoft-windows-nfs-servercore_31bf3856ad364e35_6.0.6002.22759_none_ba0656bed60d6f45.manifest

File version

Not applicable

File size

50,940

Date (UTC)

20-Dec-2011

Time (UTC)

16:39

Additional files for all supported IA-64–based versions of Windows Server 2008

File name

Ia64_66410c8e7411900b098ba4837d12faaf_31bf3856ad364e35_6.0.6002.22759_none_e6ee89545b1ec69c.manifest

File version

Not applicable

File size

704

Date (UTC)

20-Dec-2011

Time (UTC)

18:51

File name

Ia64_microsoft-windows-nfs-servercore_31bf3856ad364e35_6.0.6002.22759_none_5de95f311dae070b.manifest

File version

Not applicable

File size

50,923

Date (UTC)

20-Dec-2011

Time (UTC)

15:30

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