I am using the Ubuntu Rescue Remix and Ddrescue. I am in the process of creating a RAW image onto a 'good' drive (sdc) from a 'bad' drive (sdc). I used the command
sudo ddrescue -r 3 /dev/sdb image log
to begin the back-up process. Well I have the "Finished" command on screen so I am trying to unmount my good drive, before a reboot by using the following
sudo umount /dev/sdc
but I am getting an error of
device is busy.
(In some cases useful info about processes that use the device is found by lsoft(8) or fuser(1))
My Linux knowledge is very very low so I am not sure what I need to do in order to umount the drive?
EDIT --- I was following the tutorial listed here http://www.geekyprojects.com/storage/how-to-recover-data-even-when-hard-drive-is-damaged/ and since I was unable to unmount my drive, I just force rebooted. Well now when I run
sudo lshw -C disk -short
the drive no longer shows up?!?!?! These are the drives I see. It completely skips sdb
/dev/sda
/dev/cdrom
/dev/cdrom
/dev/sdc