Re: [Bug-ddrescue] Feature request: preserve source timestamp

[Antonio Diaz Diaz]

Andrey Gursky wrote:
> In order to do this in a script, an informative exit status from
> ddrescue would be needed, to easy distinguish between ddrescue is just
> done with its passes and ddrescue has completely restored a file.

You can use ddrescuelog for this:

'-D'
'--done-status'
     Test if all the blocks in the rescue domain have been successfully
     recovered. The exit status is 0 if all tested blocks are finished,
     1 otherwise.


> I've tried to use the safecopy's simulator [1], but ddrescue keeps to
> loose the source file:

Ddrescue now provides a couple options to simulate read errors:

'-H FILE'
'--test-mode=FILE'
     Builds a map of good/bad blocks using the mapfile FILE and uses it
     to simulate read errors in INFILE. The blocks marked as finished
     in FILE will be read normally. All other block types will be
     considered read errors without even trying to read them from
     INFILE. This mode is an aid in improving the algorithm of ddrescue
     and is also useful to verify that ddrescue produces accurate
     results in presence of read errors. Use '-' as FILE to read from
     standard input.

'--pause-on-error=INTERVAL'
     Time to wait after each read error or slow read. Defaults to 0.
     INTERVAL is formatted as in the option '--timeout' above. If
     INTERVAL begins with 's', the pause is simulated; the time
     displayed is increased by INTERVAL but without performing any
     pause. Pause simulation can be useful in combination with
     '--test-mode' for testing purposes.


Best regards,
Antonio.