Microsoft KB Archive/110481

= Backup Doesn't Back Up Entire Hard Disk or Create Log File =

Article ID: 110481

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Advanced Server 3.1
 * Microsoft Windows NT Workstation 3.1

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This article was previously published under Q110481



SYMPTOMS
NTBACKUP.EXE does not back up the entire hard disk drive when issued from the command line or from a batch file. Also, the following error may appear:

You do not have permission to access portions of \xxx Please see the owner or administrator to get permission. Error reading alternate file data.

where "xxx" will be part of the subdirectory path name.

If you use the command line statement:

  NTBACKUP backup C:\ /B /L "C:\BACKUP.LOG"

NTBackup will back up the specified directory, but will not back up the local registry as specified by the /B switch. If the specified directory is not the root directory, the following error message will appear in the status box:

You do not have permission to access portions of \xxx. Please see the owner or administrator to get permission. Error reading alternate file data.

NTBACKUP.EXE will also create an empty log file with a size of 2 bytes and write it in the \\WINNT directory instead of the path specified by the /L switch.



CAUSE
In Service Pack 2 for Windows NT, NTBACKUP.EXE was modified to recognize Unicode. This caused a regression problem where it did not parse command line parameters correctly.



RESOLUTION
Service Pack 2 has been re-released with a correction for this problem.

If you applied the previous Service Pack 2 before 1/31/94, you need to update Windows NT to the new version.

To determine if you have the new Service Pack 2 on a running system, at a command prompt type "WINVER".

If WINVER shows that the release is:

  Build 528: CSD003  - you have the old Service Pack 2.

If WINVER shows that the release is:

  Build 528: Service Pack 2  - you have the new Service Pack 2.



STATUS
Microsoft has confirmed this to be a problem in Windows NT and Windows NT Advanced Server version 3.1. This problem has been corrected in the latest U.S. Service Pack for Windows NT and Windows NT Advanced Server version 3.1. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

  S E R V P A C K

Additional query words: prodnt failure broke

Keywords: KB110481

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