FAT-formatted media may not mount after the TFAT operation is interrupted (839034)


The information in this article applies to:

  • Microsoft Windows CE .NET 4.2

SYMPTOMS

If synchronization of the file allocation table is interrupted, media that is file allocation table (FAT) formatted and that is used with the Transactional File Allocation Table (TFAT) file system may not successfully re-mount. The synchronization may be interrupted by a loss of power, by a system reset, or by the removal of media.

CAUSE

The BIOS Parameter Block (BPB) structure temporarily holds the value of 0 (zero) for the number of file allocation tables during a FAT file system synchronization. If the synchronization is interrupted, the 0 (zero) FAT value prevents the media from mounting on any system. The BIOS BPB structure holds the value for the numbers of file allocation tables in the BPB_NumberOfFATs BYTE element of the BPB structure.

RESOLUTION

Hotfix Information

A supported software update is now available from Microsoft as Windows CE 4.2 Core OS QFE 839034. To resolve this problem immediately, click the following article number for information about obtaining Windows CE Platform Builder and core operating system software updates:

837392 How to locate core operating system fixes for Microsoft Windows CE Platform Builder products

Prerequisites

This fix is supported only when all previously issued fixes for this product have also been installed.

Restart Requirement

After you install this update, you must perform a clean build of the whole platform. To clean the platform, click Clean on the Build menu. To build the platform, click Build Platform on the Build menu.

Hotfix Replacement Information

This hotfix does not replace any other hotfixes.

File Information

The English version of this package has the file attributes (or later) that are listed in the following table. 
   Date         Time   Version            Size    File name
   ---------------------------------------------------------------------------------------

   25-Mar-2004  19:44  4.21            1,284,856  Wincepb42-040325-kb839034-armv4.exe  
   25-Mar-2004  19:44  4.21            1,284,856  Wincepb42-040325-kb839034-armv4i.exe
   25-Mar-2004  19:44  4.21            1,321,720  Wincepb42-040325-kb839034-mipsii.exe
   25-Mar-2004  19:44  4.21            1,321,720  Wincepb42-040325-kb839034-mipsii_fp.exe
   25-Mar-2004  19:44  4.21            1,338,104  Wincepb42-040325-kb839034-mipsiv.exe
   25-Mar-2004  19:44  4.21            1,338,104  Wincepb42-040325-kb839034-mipsiv_fp.exe
   25-Mar-2004  19:44  4.21            1,239,800  Wincepb42-040325-kb839034-sh3.exe
   25-Mar-2004  19:44  4.21            1,239,800  Wincepb42-040325-kb839034-sh4.exe
   25-Mar-2004  19:44  4.21            1,145,592  Wincepb42-040325-kb839034-x86.exe
The English version of this hotfix has the file attributes (or later) 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
   --------------------------------------------------------------

   Path: Public\Common\Oak\Lib\Armv4\Debug
   19-Mar-2004  19:11                    637,152  Fatfsd.lib
   19-Mar-2004  19:11                     86,016  Fatfsd.pdb
   19-Mar-2004  19:11                    720,048  Tfat.lib
   19-Mar-2004  19:11                     86,016  Tfat.pdb

   Path: Public\Common\Oak\Lib\Armv4\Retail
   19-Mar-2004  19:11                    365,342  Fatfsd.lib
   19-Mar-2004  19:11                     86,016  Fatfsd.pdb
   19-Mar-2004  19:11                    405,298  Tfat.lib
   19-Mar-2004  19:11                     86,016  Tfat.pdb

   Path: Public\Common\Oak\Lib\Armv4i\Debug
   19-Mar-2004  19:12                    637,798  Fatfsd.lib
   19-Mar-2004  19:12                     86,016  Fatfsd.pdb
   19-Mar-2004  19:12                    720,820  Tfat.lib
   19-Mar-2004  19:12                     86,016  Tfat.pdb

   Path: Public\Common\Oak\Lib\Armv4i\Retail
   19-Mar-2004  19:11                    365,764  Fatfsd.lib
   19-Mar-2004  19:11                     86,016  Fatfsd.pdb
   19-Mar-2004  19:11                    405,798  Tfat.lib
   19-Mar-2004  19:11                     86,016  Tfat.pdb

   Path: Public\Common\Oak\Lib\Mipsii\Debug
   19-Mar-2004  19:12                    653,102  Fatfsd.lib
   19-Mar-2004  19:12                     86,016  Fatfsd.pdb
   19-Mar-2004  19:12                    735,696  Tfat.lib
   19-Mar-2004  19:12                     86,016  Tfat.pdb

   Path: Public\Common\Oak\Lib\Mipsii\Retail
   19-Mar-2004  19:12                    372,824  Fatfsd.lib
   19-Mar-2004  19:12                     86,016  Fatfsd.pdb
   19-Mar-2004  19:12                    413,204  Tfat.lib
   19-Mar-2004  19:12                     86,016  Tfat.pdb

   Path: Public\Common\Oak\Lib\Mipsii_fp\Debug
   19-Mar-2004  19:12                    653,240  Fatfsd.lib
   19-Mar-2004  19:12                     86,016  Fatfsd.pdb
   19-Mar-2004  19:13                    735,788  Tfat.lib
   19-Mar-2004  19:13                     86,016  Tfat.pdb

   Path: Public\Common\Oak\Lib\Mipsii_fp\Retail
   19-Mar-2004  19:12                    372,962  Fatfsd.lib
   19-Mar-2004  19:12                     86,016  Fatfsd.pdb
   19-Mar-2004  19:12                    413,352  Tfat.lib
   19-Mar-2004  19:12                     86,016  Tfat.pdb

   Path: Public\Common\Oak\Lib\Mipsiv\Debug
   19-Mar-2004  19:13                    661,188  Fatfsd.lib
   19-Mar-2004  19:13                     86,016  Fatfsd.pdb
   19-Mar-2004  19:13                    745,606  Tfat.lib
   19-Mar-2004  19:13                     86,016  Tfat.pdb

   Path: Public\Common\Oak\Lib\Mipsiv\Retail
   19-Mar-2004  19:13                    375,676  Fatfsd.lib
   19-Mar-2004  19:13                     86,016  Fatfsd.pdb
   19-Mar-2004  19:13                    416,808  Tfat.lib
   19-Mar-2004  19:13                     86,016  Tfat.pdb

   Path: Public\Common\Oak\Lib\Mipsiv_fp\Debug
   19-Mar-2004  19:13                    661,326  Fatfsd.lib
   19-Mar-2004  19:13                     86,016  Fatfsd.pdb
   19-Mar-2004  19:13                    745,698  Tfat.lib
   19-Mar-2004  19:13                     86,016  Tfat.pdb

   Path: Public\Common\Oak\Lib\Mipsiv_fp\Retail
   19-Mar-2004  19:13                    375,812  Fatfsd.lib
   19-Mar-2004  19:13                     86,016  Fatfsd.pdb
   19-Mar-2004  19:13                    416,958  Tfat.lib
   19-Mar-2004  19:13                     86,016  Tfat.pdb

   Path: Public\Common\Oak\Lib\Sh3\Debug
   19-Mar-2004  19:14                    560,892  Fatfsd.lib
   19-Mar-2004  19:14                     86,016  Fatfsd.pdb
   19-Mar-2004  19:14                    631,564  Tfat.lib
   19-Mar-2004  19:14                     86,016  Tfat.pdb

   Path: Public\Common\Oak\Lib\Sh3\Retail
   19-Mar-2004  19:14                    339,898  Fatfsd.lib
   19-Mar-2004  19:14                     86,016  Fatfsd.pdb
   19-Mar-2004  19:14                    375,682  Tfat.lib
   19-Mar-2004  19:14                     86,016  Tfat.pdb

   Path: Public\Common\Oak\Lib\Sh4\Debug
   19-Mar-2004  19:14                    560,546  Fatfsd.lib
   19-Mar-2004  19:14                     86,016  Fatfsd.pdb
   19-Mar-2004  19:14                    631,188  Tfat.lib
   19-Mar-2004  19:14                     86,016  Tfat.pdb

   Path: Public\Common\Oak\Lib\Sh4\Retail
   19-Mar-2004  19:14                    339,216  Fatfsd.lib
   19-Mar-2004  19:14                     86,016  Fatfsd.pdb
   19-Mar-2004  19:14                    374,982  Tfat.lib
   19-Mar-2004  19:14                     86,016  Tfat.pdb

   Path: Public\Common\Oak\Lib\X86\Debug
   19-Mar-2004  19:11                    548,000  Fatfsd.lib
   19-Mar-2004  19:11                     86,016  Fatfsd.pdb
   19-Mar-2004  19:11                    617,570  Tfat.lib
   19-Mar-2004  19:11                     86,016  Tfat.pdb

   Path: Public\Common\Oak\Lib\X86\Retail
   19-Mar-2004  19:10                    300,902  Fatfsd.lib
   19-Mar-2004  19:10                     86,016  Fatfsd.pdb
   19-Mar-2004  19:11                    332,678  Tfat.lib
   19-Mar-2004  19:11                     86,016  Tfat.pdb

STATUS

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

Modification Type:MinorLast Reviewed:5/27/2005
Keywords:kbBug kbfix kbQFE KB839034 kbAudDeveloper
©2004 Microsoft Corporation. All rights reserved.