This is the command recoverdm that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
recoverdm - recover files on disks with damaged sectors
SYNOPSIS
recoverdm -t <type> -i <file/device-in> -o <output_file> [-l <sectors_file>] [-n retries]
[-s rotation_speed] [-r retries] [-b start_offset] [-p skip_blocks_count]
DESCRIPTION
recoverdm recover disks with bad sectors. You can recover files as well complete devices.
In case it finds sectors which simply cannot be recovered, it writes an empty sector to
the output file and continues.
When recovering a CD or a DVD and the program cannot read the sector in "normal mode",
then the program will try to read the sector in "RAW mode" (without error checking etc.).
This toolkit also has a utility called mergebad which merges multiple images into one.
OPTIONS
-t <type>
See the above table to choose a value for <type>.
-i <file/device-in>
Device or file to recover.
-o <output_file>
File where to write to. This file should not already exist.
-l <sectors_file>
Generates a mapfile containing checksums and a list of bad sectors. This mapfile
can then be used with mergebad to create one correct image from several damaged
images.
-n retries
Number of retries before going on with next sector. Default is 6. For CDROMs it is
advised to use 1.
-s rotation_speed
Rotation speed of CDROM/DVD. Default is 1.
-r retries
Number of retries while reading in RAW mode before going on with next sector.
Default is 6. It is advised to use at least 3.
-b start_offset
Point to start.
-p skip_blocks_count
How many sectors are skipped after non-read one. Use more to speed-up the recover
process. Default is 1.
TYPE OF DEVICES
These are the values can be used with -t option:
FILE 1
FLOPPY 10
FLOPPY_IDE 11
FLOPPY_SCSI 12
CDROM_IDE 20
CDROM_SCSI 21
DVD_IDE 30
DVD_SCSI 31
DISK_IDE 40
DISK_SCSI 41
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