On 2016-05-02 2:29 PM, Robert Elz wrote:
I do gzip -d < /path/do/mydump | restore -if - all the time, it works just fine.
And that's because dump/restore were built to work with tapes, where backspace/rewind is eeeeevil. This is why the multiple passes during dump – it writes a table of contents at the start of the dump set so it knows where to find everything on the tape(s). (More or less.)