Microsoft KB Archive/105927

= MS-DOS 6.x Backup Err Msg: "...Catalog File Is Corrupt" =

Article ID: 105927

Article Last Modified on 11/26/1999

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APPLIES TO


 * Microsoft MS-DOS 6.0 Standard Edition
 * Microsoft MS-DOS 6.2 Standard Edition
 * Microsoft MS-DOS 6.22 Standard Edition

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This article was previously published under Q105927



SYMPTOMS
When you select and back up 1,023 or 2,047 files (not including the catalog file), you receive the following error message from Microsoft Backup:

Critical Error

The catalog file is corrupt

This problem does not occur in Microsoft Backup for Windows.



WORKAROUND
To avoid this problem, select more or fewer than 1,023 or 2,047 files (not including the catalog file)--the problem occurs only when you have exactly 1,023 or 2047 files selected.

NOTE: After you select the files to back up and choose OK, the status screen at the main backup menu states how many files were selected for backup. This number includes the catalog file. Therefore, in the situation described above, it would state that 1,024 or 2,048 files were selected for backup.

If you select and back up 1,024 or 2,048 files (not including the catalog file), you receive the following error message when you try and restore them:

Critical Error

The catalog file is corrupt

Rebuild the catalog for this

backup set, then retry the restore

To work around this problem, restore 1,023 or 2,047 files and then restore the additional file.



STATUS
Microsoft has confirmed this to be a problem in Microsoft Backup for MS-DOS versions 6.0 and 6.2. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Additional query words: 6.20 msbackup.exe 1023 2047 1024 2048

Keywords: KB105927

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