recoverdm

recoverdm(1) recover files on disks with damaged sectors recoverdm(1)

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

SEE ALSO

   mergebad(1)

AUTHOR

   The recoverdm was written by Folkert van Heusden <folkert@vanheusden.com>.

   This manual page was written by Joao Eriberto Mota Filho <eriberto@debian.org> for the Debian project (but may be used by others).

recoverdm-0.20 Jul 2015 recoverdm(1)