Damit bin ich überfordert. kann mir da jemand weiterhelfen.
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Usage: ddrescue [options] infile outfile [mapfile]
Options:
-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-trimmed, non-scraped 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 don't read new data beyond mapfile limits
-d, --idirect use direct disc access for input file
-D, --odirect use direct disc access for output file
-e, --max-bad-areas=[+]<n> maximum number of [new] bad 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 blocks of given types with data (?*/-+l)
-G, --generate-mode generate approximate mapfile from partial copy
-H, --test-mode=<file> set map of good/bad blocks from given mapfile
-i, --input-position=<bytes> starting position of domain in input file [0]
-I, --verify-input-size verify input file size with size in mapfile
-J, --verify-on-error reread latest good sector after every error
-K, --skip-size=[<i>][,<max>] initial,maximum size to skip on read error
-L, --loose-domain accept unordered domain mapfile with gaps
-m, --domain-mapfile=<file> restrict domain to finished blocks in <file>
-M, --retrim mark all failed blocks as non-trimmed
-n, --no-scrape skip the scraping phase
-N, --no-trim skip the trimming phase
-o, --output-position=<bytes> starting position in output file [ipos]
-O, --reopen-on-error reopen input file after every read error
-p, --preallocate preallocate space on disc for output file
-P, --data-preview[=<lines>] show some lines of the latest data read [3]
-q, --quiet suppress all messages
-r, --retry-passes=<n> exit after <n> retry passes (-1=infinity) [0]
-R, --reverse reverse the direction of all passes
-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
-u, --unidirectional run all passes in the same direction
-v, --verbose be verbose (a 2nd -v gives more)
-w, --ignore-write-errors make fill mode ignore write errors
-W, --compare-before-write omit superfluous writes in rescue mode
-x, --extend-outfile=<bytes> extend outfile size to be at least this long
-X, --max-read-errors=<n> maximum number of read errors allowed
-y, --synchronous use synchronous writes for output file
-Z, --max-read-rate=<bytes> maximum read rate in bytes/s
--ask ask for confirmation before starting the copy
--command-mode execute commands from standard input
--cpass=<range> select what copying pass(es) to run
--delay-slow=<interval> initial delay before checking slow reads [30]
--log-events=<file> log significant events in <file>
--log-rates=<file> log rates and error sizes in <file>
--log-reads=<file> log all read operations in <file>
--mapfile-interval=[i][,i] save/sync mapfile at given interval [auto]
--max-slow-reads=<n> maximum number of slow reads allowed
--pause-on-error=<interval> time to wait after each read error [0]
--pause-on-pass=<interval> time to wait between passes [0]
--reset-slow reset slow reads if rate rises above min
--same-file allow infile and outfile to be the same file
Numbers may be in decimal, hexadecimal, or octal, and may be followed by a
multiplier: s = sectors, k = 1000, Ki = 1024, M = 10^6, Mi = 2^20, 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 command line options, I/O errors, etc), 2 to
indicate a corrupt or invalid input file, 3 for an internal consistency
error (e.g., bug) which caused ddrescue to panic.
Report bugs to bug-ddrescue@gnu.org
Ddrescue home page: http://www.gnu.org/software/ddrescue/ddrescue.html
General help using GNU software: http://www.gnu.org/gethelp
root@trixie:~#
geparted sagt das 
42257
Nee ehrlich, von wichtigen Daten macht man tägliche Backups. Ab morgen, ja?