Provided by: recoverdm_0.20-4_amd64
recoverdm - recover files on disks with damaged sectors
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]
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.
-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
The recoverdm was written by Folkert van Heusden <firstname.lastname@example.org>. This manual page was written by Joao Eriberto Mota Filho <email@example.com> for the Debian project (but may be used by others).