Viewing Contents of BACKUP Disks from MS-DOS 3.3, 4.x, and 5.0 (61849)
The information in this article applies to:
• Microsoft MS-DOS operating system 3.3
• Microsoft MS-DOS operating system 3.3a
• Microsoft MS-DOS operating system 4.0
• Microsoft MS-DOS operating system 4.01
• Microsoft MS-DOS operating system 5.0
This article was previously published under Q61849
Information regarding which files are stored on a BACKUP disk created by
MS-DOS version 3.3, 4.x, or 5.0 is contained in the file CONTROL.<xxx>
(where <xxx> is the number of the BACKUP disk).
The BACKUP command included with MS-DOS versions earlier than 3.3 saves
each file as a separate file on the BACKUP disk. You can use the DIR
command to see which file is on which BACKUP disk.
A DIR of a backup disk created with the MS-DOS version 3.3x, 4.x, or 5.0
BACKUP command only lists two files: BACKUP.xxx and CONTROL.xxx (where xxx
is the number of the disk in the BACKUP sequence). The BACKUP file contains
the files that have been backed up; each file's name, size, place in the
directory structure, and so in is stored in a file called CONTROL.xxx.
The backup disks created with the Microsoft MS-DOS 5 Upgrade utility
HDBKUP.EXE are the same format as those created by the MS-DOS versions 3.3
and later BACKUP command, and can be viewed with BACKINFO.EXE.
MS-DOS 5.0 includes the RESTORE option "/D" (without the quotation marks),
which displays similar information as BACKINFO. However, if there is more
than one disk in the backup sequence, RESTORE will end with an error when a
second disk is inserted. This problem can be avoided by using BACKINFO, or
by issuing a separate RESTORE command for each disk in the backup sequence.
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