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# MIRROR Err Msg on DBLSPACE Drive: The Boot Sector for this...

Article ID: 104780

Article Last Modified on 11/22/1999

APPLIES TO

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

This article was previously published under Q104780
This information applies to both Microsoft DoubleSpace and Microsoft DriveSpace. For MS-DOS 6.22, use DRVSPACE in place of DBLSPACE for commands and filenames.

## SYMPTOMS

MIRROR may return the following error message when you try to use it on a small DoubleSpace-compressed drive:
Drive D: error.
The boot sector for this drive is incompatible with the MIRROR command. The mirror process was unsuccessful.

## CAUSE

This problem occurs only if you try to use MIRROR on a very small (approximately 1-megabyte) DoubleSpace-compressed drive that you created by running DBLSPACE /CREATE (or by choosing Create New Drive from the Compress menu in the DoubleSpace maintenance program).

## RESOLUTION

To work around this problem, run Mirror on the host for the compressed drive. To determine which drive is your host drive, type `dblspace /list` at the MS-DOS command prompt and then press ENTER.

Additional query words: 6.00 6.20

Keywords: KB104780