Just been using it with the —size function and thanks it a good idea and a lot more control.
The process was running in background and regenerating a mapfile so every time I deleted it would return. But sudo killall ddrescue killed the background process. —size will remove any chance of it happening again and a good option to learn. Thanks Barry > On 26 Jul 2023, at 19:08, Antonio Diaz Diaz <anto...@gnu.org> wrote: > > Hello Barry, > > Barry Allsop wrote: >> Firstly ddrescue is excellent so thank you. > > You are welcome. :-) > >> I have it on all my computers lastly iMac now the issue I'm having is the >> unrecognised disk size. > > Ddrescue can't detect the size of a raw /dev/rdiskN device. See > http://www.gnu.org/software/ddrescue/manual/ddrescue_manual.html#Direct-disc-access > > "On some systems, ddrescue can't determine the size of a raw device, so an > explicit --size or --complete-only option may be needed." > >> It reads 9223 PB now this was not issue first time tried but experimenting I >> selected -R per[s foolishly in hindsight not its stuck in reverse mode. >> >> When ever I use mapfile its auto starts in reverse (regard less of selected >> disks) I presume at some Imaginary 9223 PB location and nothing happens. >> >> I tried wiping all mapflies I can find but still it starts in backwards mode >> as >> soon as it starts cloning with mapfile, if I leave mapfile off the command it >> works. >> >> I presume their is a hidden log somewhere > > It is not hidden. From your command line I can see that it is named mapfile, > and it is in the directory from which you are running ddrescue. Just delete > it, or run ddrescue with a small --size and then with the right --size to > reset it to forward mode. > > Hope this helps, > Antonio.