Provided by: gddrescue_1.17-1_amd64 bug


       ddrescue - data recovery tool


       ddrescue [options] infile outfile [logfile]


       GNU  ddrescue - Data recovery tool.  Copies data from one file or block device to another,
       trying hard to rescue data in case of read errors.

       You should use a logfile unless you know what you are doing.  If  you  reboot,  check  the
       device  names before restarting ddrescue.  Do not use options '-F' or '-g' without reading
       the manual first.


       -h, --help
              display this help and exit

       -V, --version
              output version information and exit

       -a, --min-read-rate=<bytes>
              minimum read rate of good areas in bytes/s

       -A, --try-again
              mark non-split, non-trimmed blocks as non-tried

       -b, --sector-size=<bytes>
              sector size of input device [default 512]

       -B, --binary-prefixes
              show binary multipliers in numbers [SI]

       -c, --cluster-size=<sectors>
              sectors to copy at a time [128]

       -C, --complete-only
              do not read new data beyond logfile limits

       -d, --direct
              use direct disc access for input file

       -D, --synchronous
              use synchronous writes for output file

       -e, --max-errors=[+]<n>
              maximum number of [new] error areas allowed

       -E, --max-error-rate=<bytes>
              maximum allowed rate of read errors per second

       -f, --force
              overwrite output device or partition

       -F, --fill-mode=<types>
              fill given type blocks with infile data (?*/-+)

       -g, --generate-mode
              generate approximate logfile from partial copy

       -i, --input-position=<bytes>
              starting position in input file [0]

       -I, --verify-input-size
              verify input file size with size in logfile

       -K, --skip-size=<bytes>
              initial size to skip on read error [64 KiB]

       -l, --logfile-size=<entries>
              do not grow logfile beyond this size [1000]

       -m, --domain-logfile=<file>
              restrict domain to finished blocks in file

       -M, --retrim
              mark all failed blocks as non-trimmed

       -n, --no-split
              do not try to split or retry failed blocks

       -o, --output-position=<bytes>
              starting position in output file [ipos]

       -p, --preallocate
              preallocate space on disc for output file

       -q, --quiet
              suppress all messages

       -r, --retries=<n>
              exit after given retries (-1=infinity) [0]

       -R, --reverse
              reverse direction of copy operations

       -s, --size=<bytes>
              maximum size of input data to be copied

       -S, --sparse
              use sparse writes for output file

       -t, --truncate
              truncate output file to zero size

       -T, --timeout=<interval>
              maximum time since last successful read

       -v, --verbose
              be verbose (a 2nd -v gives more)

       -w, --ignore-write-errors
              make fill mode ignore write errors

       -x, --extend-outfile=<bytes>
              extend outfile size to be at least this long

       Numbers may be followed by a multiplier: s = sectors, k = kB = 10^3 = 1000,  Ki  =  KiB  =
       2^10  =  1024,  M  = 10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc...  Time intervals have the
       format 1[.5][smhd] or 1/2[smhd].

       Exit status: 0 for a normal exit, 1 for environmental problems (file  not  found,  invalid
       flags,  I/O errors, etc), 2 to indicate a corrupt or invalid input file, 3 for an internal
       consistency error (eg, bug) which caused ddrescue to panic.


       Report bugs to
       Ddrescue home page:
       General help using GNU software:


       Copyright © 2013  Antonio  Diaz  Diaz.   License  GPLv3+:  GNU  GPL  version  3  or  later
       This  is free software: you are free to change and redistribute it.  There is NO WARRANTY,
       to the extent permitted by law.


       The full documentation for ddrescue is maintained as a Texinfo manual.  If  the  info  and
       ddrescue programs are properly installed at your site, the command

              info ddrescue

       should give you access to the complete manual.