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Re: [Bug-ddrescue] ddrescue: Can't open input file: Permission denied

From: Antonio Diaz Diaz
Subject: Re: [Bug-ddrescue] ddrescue: Can't open input file: Permission denied
Date: Tue, 06 Sep 2016 18:58:58 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv: Gecko/20110420 SeaMonkey/2.0.14

Zeniff Martineau wrote:
"The format for running ddrescue is:
      ddrescue [options] infile outfile [mapfile]"

This is true, but ddrescue uses Arg_parser and allows the options to be placed anywhere in the command line:


Otherwise, I think it's taking "/media/(user)/recoverylogfile.txt" as
the outfile name and "--force" as the log/mapfile name (just my

There is no way for ddrescue to take "--force" as the mapfile unless you precede it with "--" or type it as "./--force".

Maybe ddrescue could do a command format check before running (it does
already show "while" it's running), or maybe output what it thinks are
the options used were even on an error like that?

Ddrescue checks the command line before running it. Maybe you mean "--ask"?

    Ask for user confirmation before starting the copy. If the first
    letter of the answer is 'y', ddrescue starts copying. Else it exits
    with status 1.
    If they can be obtained, ddrescue shows the model and serial number
    of the input and output devices. Else it shows the size in bytes of
    the corresponding file or device.

AFAICT, this problem is just a lack of read permission on /dev/sdb3.

Best reagrds,

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