table of contents
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¶
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).
Jul 2015 | recoverdm-0.20 |