Hello Paul,

Paul Ade wrote:
Does GNU ddrescue work over SSH and gzip?

No.


However, it always gives the error: -bash: destination.img: No such
file or directory. Note that I have in fact removed the gzip pipe
which works in dd_rescue and dd, so I wonder if I am missing the
command format? Nothing in the manual has helped.

http://www.gnu.org/software/ddrescue/manual/ddrescue_manual.html#Introduction
"Because ddrescue needs to read and write at random places, it only works on seekable (random access) input and output files."

http://www.gnu.org/software/ddrescue/manual/ddrescue_manual.html#Invoking-ddrescue
The format for running ddrescue is:
     ddrescue [options] infile outfile [logfile]

Dd and dd_rescue read the input file sequentially, and can therefore send the output to stdout. But ddrescue tries to rescue the good parts first and cannot produce a sequential output.


Best regards,
Antonio.

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