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1987-10-24
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6KB
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169 lines
Command QDR Version 3.2b
----------- Oct 24, 1987
Purpose
-------
Re-format a floppy disk quickly, optionally with a new volume
label, thus deleting all files and sub-directories on a diskette.
Format
------
QDR [d:][label] [/F] [/N] [/V] [/B] [/Q]
[/1] [/2] [/3] [/4] [/8]
Remarks
-------
The d: parameter is required and it supplies the drive letter.
A fixed disk can not be re-formatted.
You may supply a volume label (up to 11 characters) immediately
following the drive letter. For example:
QDR b:scratch
Use the /F option to force a full format of all tracks. The /1,
| /2, /3, /4, and /8 options apply to a full format, and specify
| the disk type.
Bad clusters remain marked as bad unless a full format is
used, then clusters are marked as unusable if they can not be
formatted. Use the /V (verbose) option to receive a display of
the cluster numbers that are marked as not usable.
The /N option suppresses the "press ENTER to continue" prompt.
Otherwise, press the enter key to reformat the disk, or the
ESCape key to cancel.
The DOS error level is set to 0 for successful completion, or to
1 if any errors occur.
QDR (c) Copyright Vernon D. Buerg 1986,87. All rights reserved.
Command QDR Version 3.2b
----------- Oct 24, 1987
Options
-------
/F - forced format; uses DOS to format and verify each track
/1 - forces single sided format, SSSD/8 or SSSD/9, on 360 kb drives
| /2 - forces DSHD format on 1440 kb capacity drives
/3 - forces DSQD format on 720 kb capacity drives
| /4 - forces DSDD format on 1.2 mb capacity drives
/8 - forces 8-sector format, SSSD/8 or DSDD/8, on 360 kb drives
/N - no prompt; skips the "Press ENTER" message and reply
/V - verbose messages; displays a message for each cluster
that is marked as unusable
| /B - use disk BIOS routines only for formatting; if omitted,
| the DOS routines used for formatting are determined by the
| version of DOS in use. This option is supplied as an
| alternative to the default because QDR may not be able
| to format a new diskette when certain device drivers or
| versions of DOS are installed.
| /Q - quick format without verification or bad track marking.
| If the target disk has bad spots, write errors may result.
| This option is NOT recommended for formatting new
| diskettes.
Formatting
----------
To perform a full format of a disk sectors, use the /F options.
It is recommended that you use DOS FORMAT since QDR is not much
faster when doing a full format. Both mark bad clusters.
You may suppy /1 to force SSSD format, /4 for DSQD (1.2mb), or
/3 for DSQD (720kb), or /8 for eight-sectors (SSSD or DSDD).
Unless /F is used, the diskette must have been previously
formatted. The allowable diskette formats are: DSQD (1.2mb or
720kb), SSSD/8, SSSD/9, DSDD/8, DSDD/9, and DSHD (1.44 mb).
When information is available for other drive types, they will
be added to the data in the internal device table. Your system
hardware and software must support the device type.
Command QDR Version 3.2b
----------- Oct 24, 1987
Examples
--------
o Reformat a previously formatted and used diskette. Write a
volume label of SCRATCH:
QDR A:scratch
o Alternately format new diskettes in drives A and B.
First, create a BAT file called TWOFOR.BAT with these commands:
QDR A: /F/N
QDR B: /F/N
TWOFOR
Then, issue the command TWOFOR. When the last diskette has been
formatted, press ctrl-C to abort the program.
Version history
---------------
Version 1.0, 2/28/86
- initial release
Version 2.7, 2/4/87
- update boot sector with device constant when using /f to
format, should correct problems with 3.5 inch dsqd drive
- correct initialization of fat (not marking bad clusters)
when using /f
Version 2.8, 2/5/87
- correct marking of fat for side 2
- improve format verification, set retries to 2
- add operator action request for drive not ready or if disk
is write protected
Version 2.9, 3/20/87
- minor correction for /3 (dsqd) formatting
| Version 3.2, 10/24/87
| - change meaning of /4; the default format is now the
| highest density for the drive.
| - allow formatting of drives under DOS 3.2 (and later?),
| and new formats 3.5/720kb and 3.5/1440kb.
Restrictions
------------
QDR (c) Copyright Vernon D. Buerg 1986,87. All rights reserved.
May be copied and distributed in its original form only. For
private, personal use. May not be sold or rented. Use this
program at your own risk. No warranty is given and no liability
is assumed.