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NUFR
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1990-10-19
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FR (Format Recover)
Version: Advanced Edition only
Description: Either saves information about all files on a disk you specify
or recovers from an inadvertent use of the MS-DOS Format
command or Recover command by restoring file information.
Syntax: Version 4.0: FR [(drive:)] [/SAVE] [/D0 | /D1 | /D2]
[[[/F(n)] [/B(n)]] | /BW | /TV]
Version 4.5: FR [(drive:)] [/SAVE] [/NOBAK] [/D0 | /D1]
[/BW] [/NOSNOW]
Parameters:
(drive:) The single-letter specifier (A:, B:, C:, etc.) for the drive
you want to use. Follow the letter with a colon. If you
include the /SAVE switch and do not specify a drive, FR
processes the current drive.
/B(n) Specifies the background color for the menu system in version
4.0 if you do not provide the /SAVE switch. Use an integer
from 0 through 15 to specify the color. If you attempt to
specify identical foreground and background colors, FR adds
one to the foreground color number before beginning execution.
Avoid using the high-intensity shade of a color for the
foreground with the normal-intensity shade of the same color
for the background (for example, /F12 bright red and /B4 red).
The default is /B1 (blue). See <NUCOLOR>.
/BW Specifies a black-and-white display.
/D0 Requests the standard screen driver (the default) for a fully
IBM-compatible computer system.
/D1 Requests the screen driver for a BIOS-compatible computer
system.
/D2 Requests the ANSI.SYS driver for a non-IBM- compatible
computer system.
/F(n) Specifies the foreground color for the menu system in version
4.0 if you do not provide the /SAVE switch. Use an integer
from 0 through 15 to specify the color.
The default is /F15 (bright white). See <NUCOLOR>.
/NOSNOW Prevents screen flicker if your system has an older CGA card.
/NOBAK If you either use the /SAVE switch or select the Save menu
option, this switch prevents FR from making a backup copy of
the existing FRECOVER.DAT file before creating a current
version of the file.
/SAVE Analyzes the disk and creates a FRECOVER.DAT file that FR can
use in a subsequent recover operation to rebuild the root
directory, the file allocation table, and all directories. If
you do not specify /SAVE, FR displays full-screen menus you
use to select both the command you want (either Save or
Recover) and the drive you want to process. See the notes
below. Note that some early releases of version 4.0 do not
include the menu system.
/TV Indicates that the utility is running under either TopView or
Microsoft Windows.
Notes:
To provide maximum protection for your system hard disk, include an FR /SAVE
command in your AUTOEXEC.BAT file.
In version 4.0, you can use FR only with hard disks. In version 4.5, you can
use FR with either a floppy disk or a hard disk.
FR cannot recover data on a floppy disk that was reformatted using the MS-DOS
Format command. Instead, reformat using the Norton SF (Safe Format) utility,
which is found in version 4.5. Also, FR cannot recover data on a floppy disk
that was reformatted at a different density.
Notes:
The FRECOVER.DAT file created by the /SAVE option of FR in version 4.5 is not
compatible with version 4.0.
If you have not previously run FR with the /SAVE switch against a disk you
are attempting to recover, FR cannot rebuild the root directory or the files
that were in the root directory. If the files on the disk are badly
fragmented, the file allocation table might be incorrect. You can avoid disk
fragmentation by periodically executing the SD (Speed Disk) utility, which is
found in the Advanced Edition of versions 4.0 and 4.5. Also, FR cannot
recover files that were in the root directory.
The menu system contains four main options:
1. Restore information by attempting to locate a FRECOVER.DAT file.
2. Unformat the disk by rebuilding the subdirectories and the files in
them (because no FRECOVER.DAT file was created on the disk).
3. Save disk information in a FRECOVER.DAT file.
4. Exit.
The menus also let you specify the drive you want to process. The Recover and
Unformat options let you cancel the operation if any files currently exist on
the target disk. Note that the MS-DOS Recover command creates dummy FILE(nnnn
)entries and that FR can overwrite them.
After you use FR to recover a disk, you might need to execute the MS-DOS
Chkdsk command or the Norton NDD (Norton Disk Doctor) utility (in version
4.5) to ensure that FR restored all files correctly.
See: <NUNDD>, <NUNU>, <NUQU>, <NUSD>, <NUSF>, <NUUD>.