ddrescue is a data recovery tool. It copies data from one file or block device (hard disc, cdrom, etc) to another, trying to rescue the good parts first in case of read errors. 1
ddrescue can be installed with the Pakfire web interface or via the console:
pakfire install ddrescue
There is no web interface for this Addon. To run this Addon open the client console or terminal and access the IPFire box via SSH.
To obtain a list of possible options:
The output is similar to this:
[root@ipfire ~]# ddrescue -h 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. Usage: ddrescue [options] infile outfile [logfile] You should use a logfile unless you know what you are doing. Options: -h, --help display this help and exit -V, --version output version information and exit -b, --block-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  -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 error areas allowed -F, --fill=<types> fill given type blocks with infile data (?*/-+) -g, --generate-logfile generate approximate logfile from partial copy -i, --input-position=<pos> starting position in input file  -m, --domain-logfile=<file> restrict domain to finished blocks in file -n, --no-split do not try to split or retry failed blocks -o, --output-position=<pos> starting position in output file [ipos] -q, --quiet suppress all messages -r, --max-retries=<n> exit after given retries (-1=infinity)  -R, --retrim mark all failed blocks as non-trimmed -s, --max-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, --try-again mark non-split, non-trimmed blocks as non-tried -v, --verbose verbose operation Numbers may be followed by a multiplier: b = blocks, k = kB = 10^3 = 1000, Ki = KiB = 2^10 = 1024, M = 10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc... Report bugs to email@example.com Ddrescue home page: http://www.gnu.org/software/ddrescue/ddrescue.html General help using GNU software: http://www.gnu.org/gethelp
The current pakfire ddrescue release is version 1.12 and was released by the GNU ddrescue Development Team on 06 April 2010.<